Gresham, Oregon Weather Conditions

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Current Conditions

  • 56°
  • Overcast
  • Wind: SSW 7 mph
  • Humidity: 77%
  • Visibility: 10.0 miles
  • Dew Point: 49°
  • Pressure: 29.96 in. +

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Next 12 Hours

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Chance of Rain
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55°
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Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Chance of Rain
  • High: 63 °
  • Low: 57 °
  • Chance of Rain
  • Wednesday
  • Rain
  • High: 63 °
  • Low: 55 °
  • Rain
  • Thursday
  • Rain Showers
  • High: 61 °
  • Low: 54 °
  • Rain Showers
  • Friday
  • Chance of Rain
  • High: 61 °
  • Low: 54 °
  • Chance of Rain
  • Saturday
  • Chance of Rain
  • High: 59 °
  • Low: 48 °
  • Chance of Rain

Forecast for Gresham, Oregon

Updated: 8:00 AM PDT on October 21, 2014

  • Tuesday

    Overcast with a chance of rain. High of 63F. Winds from the West at 5 to 10 mph. Chance of rain 70%.

  • Tuesday Night

    Overcast with rain. Low of 57F. Winds from the West at 10 to 15 mph shifting to the SSW after midnight. Chance of rain 90% with rainfall amounts near 0.2 in. possible.

  • Wednesday

    Overcast with rain. High of 63F. Winds from the SSE at 10 to 15 mph. Chance of rain 90% with rainfall amounts near 0.6 in. possible.

  • Wednesday Night

    Overcast with rain. Low of 55F. Winds from the WSW at 5 to 10 mph. Chance of rain 90% with rainfall amounts near 0.8 in. possible.

  • Thursday

    Overcast with rain showers. High of 61F. Winds from the SSW at 10 to 15 mph. Chance of rain 80% with rainfall amounts near 0.3 in. possible.

  • Thursday Night

    Overcast with a chance of rain. Low of 54F. Winds from the SE at 5 to 10 mph. Chance of rain 40%.

  • Friday

    Overcast with a chance of rain in the afternoon. High of 61F. Winds from the East at 5 to 10 mph. Chance of rain 40%.

  • Friday Night

    Overcast with a chance of rain. Low of 54F. Winds from the East at 5 to 20 mph shifting to the South after midnight. Chance of rain 50%.

  • Saturday

    Overcast with a chance of rain. High of 59F. Breezy. Winds from the SSW at 15 to 25 mph. Chance of rain 60% with rainfall amounts near 0.3 in. possible.

  • Saturday Night

    Mostly cloudy with a chance of rain. Low of 48F. Winds from the South at 5 to 10 mph. Chance of rain 60%.

  • Sunday

    Partly cloudy with a chance of rain. High of 59F. Winds from the SSW at 5 to 10 mph. Chance of rain 40%.

  • Sunday Night

    Partly cloudy. Low of 48F. Winds less than 5 mph.

  • Monday

    Partly cloudy. High of 61F. Winds less than 5 mph.

  • Monday Night

    Mostly cloudy. Low of 52F. Winds from the ESE at 5 to 10 mph.

  • Tuesday

    Overcast with a chance of rain. High of 61F. Winds from the SSE at 10 to 15 mph. Chance of rain 70% with rainfall amounts near 0.3 in. possible.

  • Tuesday Night

    Overcast with a chance of a thunderstorm. Low of 52F. Winds less than 5 mph. Chance of rain 40%.

  • Wednesday

    Mostly cloudy with a chance of a thunderstorm. High of 59F. Winds less than 5 mph. Chance of rain 40%.

  • Wednesday Night

    Mostly cloudy with a chance of a thunderstorm. Low of 50F. Winds less than 5 mph. Chance of rain 40%.

  • Thursday

    Mostly cloudy with a chance of a thunderstorm. High of 55F. Winds less than 5 mph. Chance of rain 40%.

  • Thursday Night

    Overcast with a chance of a thunderstorm. Low of 46F. Winds less than 5 mph. Chance of rain 40%.

  • Friday

    Mostly cloudy with a chance of a thunderstorm. High of 54F. Winds less than 5 mph. Chance of rain 40%.

  • Friday Night

    Clear. Low of 46F. Winds less than 5 mph.

Severe Weather Alert Descriptions

 Special Statement  Statement as of 5:45 am PDT on October 21, 2014


... Wet and windy week ahead for southwest Washington and northwest
Oregon...

A strong and wet Pacific frontal system will bring periods of
heavy rain and gusty winds to much of southwest Washington and
northwest Oregon starting today... continuing throughout the
midweek period before the front finally exits to our south and
east late Wednesday night or Thursday.

South winds will increase along the coast this afternoon as this
front approaches the Pacific northwest coastal waters. Winds
will be especially strong along the beaches and headlands... where
gusts of 60 to 70 mph are expected at times later today through
early Wednesday. Coastal communities may see gusts upwards of 50
mph as the front slowly sags down the coast tonight and Wednesday.

South winds will also pick up tonight into Wednesday for the
inland valleys and main Metro areas... where gusts of 30 to 40 mph
are possible. Many trees still have a full complement of leaves on
them... which could cause more limbs to break than is often the
case with such winds. As a result... some minor power outages are
possible as the gusty winds develop.

This frontal system also has a solid tap to tropical moisture...
which will enhance rainfall near the front as it slowly moves
through the area tonight through early Thursday. Rain will be
heavy at times along the coast and in the higher terrain... and
possibly in the inland valleys as well.

Currently... rainfall totals of around 2 inches are expected in
the inland valleys by Thursday afternoon. Coastal locations are
expected to receive 2 to 4 inches of rain... and 3 to 6 inches of
rain are forecast for most of the Coast Range and Cascades.

Leaves downed by the rain and gusty winds may clog storm drains
and exacerbate minor urban flooding issues as the rain becomes
heavier Wednesday into Wednesday night. Additionally... there is a
possibility of minor flooding on some faster responding small
streams and rivers due to the heavy rain. Burn scar areas from
recent wildfires in the Cascades may also be subject to debris
flows. All of this will be monitored closely over the coming days.

After a lull on Thursday... it is starting to appear that another
strong system could affect at least part of the area Friday into
this weekend. Details on this system are still quite uncertain...
but it appears southwest Washington and northwest Oregon is in for
a fairly extended period of wet and unsettled Fall weather.


Weagle


Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Downtown, Gresham, OR

Updated: 8:03 AM PDT

Temperature: 53.6 °F Dew Point: 50 °F Humidity: 88% Wind: South at 2.0 mph Pressure: 29.99 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Hogan and Roberts, Gresham, OR

Updated: 8:07 AM PDT

Temperature: 54.0 °F Dew Point: 44 °F Humidity: 69% Wind: South at 2.7 mph Pressure: 29.59 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Near Springwater Trail, Gresham, OR

Updated: 8:07 AM PDT

Temperature: 53.6 °F Dew Point: 50 °F Humidity: 89% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Eastman Park, Gresham, OR

Updated: 8:00 AM PDT

Temperature: 53.8 °F Dew Point: 50 °F Humidity: 87% Wind: ENE at 1.0 mph Pressure: 29.92 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: APRSWXNET Gresham OR US, Fairview, OR

Updated: 7:31 AM PDT

Temperature: 54 °F Dew Point: 50 °F Humidity: 87% Wind: SW at 5 mph Pressure: 29.94 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Stewart Ridge, Troutdale, OR

Updated: 8:07 AM PDT

Temperature: 54.8 °F Dew Point: 44 °F Humidity: 66% Wind: South at 7.0 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Kelly Creek, Gresham, OR

Updated: 8:00 AM PDT

Temperature: 53.0 °F Dew Point: 25 °F Humidity: 34% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Sandee Palisades, Troutdale, OR

Updated: 8:07 AM PDT

Temperature: 54.1 °F Dew Point: 50 °F Humidity: 86% Wind: SSE at 4.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Troutdale, Troutdale, OR

Updated: 8:07 AM PDT

Temperature: 55.9 °F Dew Point: 34 °F Humidity: 43% Wind: West at 3.4 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Red's House, Portland, OR

Updated: 8:05 AM PDT

Temperature: 53.3 °F Dew Point: 50 °F Humidity: 88% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Staly Addition, Damascus, OR

Updated: 8:07 AM PDT

Temperature: 52.6 °F Dew Point: 49 °F Humidity: 89% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Pleasant Valley, Portland, OR

Updated: 8:07 AM PDT

Temperature: 52.3 °F Dew Point: 52 °F Humidity: 91% Wind: South at 1.6 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Weidler Lodge (near NE 148th), Portland, OR

Updated: 8:07 AM PDT

Temperature: 55.6 °F Dew Point: -0 °F Humidity: 7% Wind: Calm Pressure: 29.91 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Happy Valley (GO BLAZERS), Happy Valley, OR

Updated: 8:07 AM PDT

Temperature: 52.3 °F Dew Point: 50 °F Humidity: 91% Wind: SSW at 9.4 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Donatello Loop, Happy Valley, OR

Updated: 8:07 AM PDT

Temperature: 51.4 °F Dew Point: 51 °F Humidity: 100% Wind: SE at 4.5 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Russell, Portland, OR

Updated: 8:07 AM PDT

Temperature: 54.0 °F Dew Point: 53 °F Humidity: 95% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Cottrell Farm, Boring, OR

Updated: 8:00 AM PDT

Temperature: 51.4 °F Dew Point: 49 °F Humidity: 91% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Happy Valley - Bella Casa, Happy Valley, OR

Updated: 8:07 AM PDT

Temperature: 52.7 °F Dew Point: 51 °F Humidity: 94% Wind: Calm Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Sunrise Heights, Happy Valley, OR

Updated: 8:07 AM PDT

Temperature: 52.3 °F Dew Point: 50 °F Humidity: 90% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Happy Valley Heights, Happy Valley, OR

Updated: 8:07 AM PDT

Temperature: 50.5 °F Dew Point: 50 °F Humidity: 97% Wind: Calm Pressure: 29.40 in Hourly Precipitation: 2.56 in Windchill: - Graphs

Location: Starkwood, Portland, OR

Updated: 8:07 AM PDT

Temperature: 53.8 °F Dew Point: 49 °F Humidity: 83% Wind: ESE at 3.8 mph Pressure: 29.41 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Sandy Swimming Hole, Washougal, WA

Updated: 8:07 AM PDT

Temperature: 53.1 °F Dew Point: 52 °F Humidity: 98% Wind: East at 1.6 mph Pressure: 29.80 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Summit Hills Estates, Camas, WA

Updated: 8:06 AM PDT

Temperature: 52.5 °F Dew Point: 50 °F Humidity: 92% Wind: SSE at 1.0 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Walgren, Damascus, OR

Updated: 8:07 AM PDT

Temperature: 52.5 °F Dew Point: 49 °F Humidity: 88% Wind: ESE at 3.5 mph Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Mt. Scott/el. 1000', Happy Valley, OR

Updated: 8:07 AM PDT

Temperature: 50.3 °F Dew Point: 49 °F Humidity: 96% Wind: SSE at 9.0 mph Pressure: 29.91 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Mt. Scott Summit, Happy Valley, OR

Updated: 8:05 AM PDT

Temperature: 49.6 °F Dew Point: 48 °F Humidity: 96% Wind: SSE at 10.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: 46 °F Graphs

Location: Hoffman KB, Portland, OR

Updated: 7:55 AM PDT

Temperature: 54.0 °F Dew Point: 51 °F Humidity: 89% Wind: Calm Pressure: 29.93 in Hourly Precipitation: - Windchill: - Graphs

Location: Corbett, Corbett, OR

Updated: 8:02 AM PDT

Temperature: 51.2 °F Dew Point: 49 °F Humidity: 93% Wind: South at 6.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Arbor View, Washougal, WA

Updated: 8:07 AM PDT

Temperature: 53.6 °F Dew Point: 50 °F Humidity: 89% Wind: Calm Pressure: 30.00 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Lake Pointe, Camas, WA

Updated: 8:07 AM PDT

Temperature: 52.2 °F Dew Point: 48 °F Humidity: 86% Wind: Calm Pressure: 29.81 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Washougal 49th and U, Washougal, WA

Updated: 8:07 AM PDT

Temperature: 54.2 °F Dew Point: 51 °F Humidity: 88% Wind: Calm Pressure: 29.45 in Hourly Precipitation: 0.00 in Windchill: - Graphs

Location: Lacamas Shores, Camas, WA

Updated: 7:55 AM PDT

Temperature: 52.6 °F Dew Point: 48 °F Humidity: 85% Wind: East at 1.0 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Windchill: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Portland or 
351 am PDT Tuesday Oct 21 2014 


Synopsis...expect a very wet and occasionally windy week ahead...as 
an active Fall weather pattern dominates southwest Washington and 
northwest Oregon. The system which brought showers and a couple claps 
of thunder Monday has moved into eastern Oregon and the Great Basin. 
Enough moisture and instability remains left behind for scattered 
showers this morning...mainly north and along the coast. Meanwhile a 
strong frontal system is taking shape offshore. This system will be a 
slow mover...spreading locally heavy rain south and east across the 
forecast area tonight through early Thursday. This front will produce 
strong coastal winds as waves of low pressure develop along it and 
pass by. Another wet and potentially windy front is expected by the 
weekend. 


&& 


Short term...today through Thursday...the main feature of the short 
term forecast period will be our strongest frontal system so far this 
season...producing strong coastal winds later today through 
Wednesday. This front will also have a strong tap to subtropical 
moisture...spreading locally heavy rain southward across southwest 
Washington and northwest Oregon tonight through Thursday morning. 
Conditions are ripe for cyclogenesis along the front...and multiple 
waves of low pressure are expected to develop and ride NE along the 
front as it passes slowly southward across western WA/OR. 


First things first...scattered showers continue this morning in the 
residual moisture and conditional instability left behind the front 
which moved through the forecast area Monday. These should gradually 
taper off this morning as the air mass warms aloft...however the warm 
advection aloft will also produce isentropic lift. This should result 
in rainy day for the coast and perhaps our northern zones as a warm 
front lifts through northwest Oregon and SW Washington. 


Behind the warm front...the door will be opened for a strengthening 
coastal jet ahead of an approaching cold front. Though details 
vary...model runs have been fairly consistent in suggesting a 55 to 
65 knots southerly jet developing along the coast at 950 mb. This should 
be ample for 55-70 miles per hour gusts at times along the beaches and headlands 
from the S Washington coast down to the Lincoln and possibly Lane County 
coast. Therefore will be upgrading the high wind watch to a warning 
for these areas. Timing will remain the same for the S Washington/north or 
coast...this afternoon into Wednesday morning. Will extend the timing 
for the central coast into midday Wednesday to give the front some 
time to push south of the Lane/Douglas County border. 


As mentioned above...multiple waves of low pressure are expected to 
develop along the front...which will slow down its southward 
progress. These waves of low pressure will likely each produce a 
burst of coastal wind to its south and east along the front. So winds 
may be strong for a few hours...let up a bit...then pick back up 
again until the front pushes south of coastal locations. There is 
still a good deal of uncertainty as to how deep these lows will 
get...which of course would impact the expected wind speeds. 


The 06z NAM is developing a 990 mb low along the front by 09z Wednesday... 
pushing it into Vancouver Island Wednesday morning. The first signs of this 
developing low are already showing up on infrared/water vapor imagery 
with a baroclinic Leaf taking shape along the front near 150w. A 
secondary low will likely develop along the triple Point of the 
resulting occluding front off the northern Oregon coast...and perhaps 
a tertiary low thereafter. These waves of low pressure will slow the 
southward progress...each producing a burst of coastal wind to its 
south and east along the front. So winds may be strong for a few 
hours...let up a bit...then pick back up again until the front pushes 
south of coastal locations. There is still a good deal of uncertainty 
as to how deep these lows will get...which of course would impact the 
expected wind speeds. 


Also the 06z NAM is beginning to show some potential for gusty winds 
in the Willamette Valley...as its secondary low moves onshore near 
Astoria Wednesday morning. This track could open up enough southerly 
gradient for 30-40 miles per hour wind gusts in the Willamette Valley and 
stronger wind gusts in the coastal communities. For now it appears 
winds will remain sub-advisory criteria inland...but will need to 
monitor closely. 


Not to get lost in all the discussion about our first coastal high 
wind event...is the potential for rather impressive rainfall totals 
as this slow moving...wavy front moves slowly south across our 
forecast area. This system is tapping into a decent atmospheric river 
which extends all the way back beyond the dateline. Made only minor 
changes to the quantitative precipitation forecast forecast...with 2 inches of rain expected for the 
inland valleys...2-4 inches along the coast...and 3-6 inches in the 
higher terrain by Thursday. It will be a close call whether or not 
this will be enough to cause problems on flashier rivers like the 
Grays River in the Willapa Hills...as well as the burn scar areas 
from the 36 pit and deception fires. Impacts on these areas will need 
to be monitored closely over the coming days. 


Due to this systems subtropical origins snow levels will remain 
rather high throughout this event...so only the highest Volcano peaks 
above 6000-7000 feet will receive significant snowfall. 


The front will finally push south and east of our forecast area 
sometime late Wednesday night or Thursday morning. Showers will linger in the 
cool unsettled air mass behind the front Thursday. Weagle 


Long term...Friday through Monday...medium range guidance continues 
to struggle with how to handle the late week and weekend period. 
There is increasing agreement that another potent low pressure/ 
frontal system will develop offshore...perhaps bringing another 
period of heavy rain and gusty winds Friday and/or Saturday. As for 
the longwave pattern...the latest 00z runs are trying to keep the 
mean ridge position over the western half of the United States. This 
is not surprising considering the large pool of above normal sea 
surface temperatures over the NE Pacific. The Pacific northwest may remain 
in the transition zone between longwave ridging and troughing well 
into next week...which is of course where the storm track tends to 
be. Therefore active and wet weather at times is expected to continue 
into next week. Weagle 


&& 


Aviation...scattered showers pushing across the region early this 
morning will result in occasional MVFR conditions...but expect 
mostly VFR conditions to prevail through late this morning before 
rain 
returns to the coast...reaching inland locations late this 
afternoon/early evening. Gusty winds along the coast will 
gradually increase through this evening...with southerly wind 
gusts up to 45 knots at times tonight through Wednesday morning. A High 
Wind Warning is now in effect for coastal sites. 


Kpdx and approaches...VFR prevailing next 24 hours. There is a 30 
percent chance of MVFR ceilings between 2000 and 3000 feet between 12z 
and 18z with scattered showers. /27 


&& 


Marine...southwest winds continue around 10 to 20 knots this 
morning. Occasional gusts up to 25 knots also continue through early 
today...before gradually increasing by this afternoon. 06z model 
runs are showing high end southerly gale force winds with gusts 
45 to 48 knots expected tonight through Wednesday morning. May see a few 
gusts pop up near storm force...but have kept winds below storm 
force criteria for now and would like another model run before 
deciding on that. A coastal jet is expected to form ahead of an 
occluded front tonight enhancing winds near the coast. 


A westerly swell on the order of 10 feet will continue for the next 
few days...but seas are likely to build to around 15 to 18 feet and 
become steeper tonight and Wednesday due to the southerly gales. 


&& 


Pqr watches/warnings/advisories... 
or...High Wind Warning from 3 PM this afternoon to 9 am PDT 
Wednesday for the north Oregon coast beaches and headlands. 


High Wind Warning from 3 PM this afternoon to noon PDT 
Wednesday for the central Oregon coast beaches and headlands. 


Washington...High Wind Warning from 3 PM this afternoon to 9 am PDT 
Wednesday for the South Washington coast beaches and headlands. 


Pz...Small Craft Advisory for winds until 1 PM PDT this afternoon 
for coastal waters from Cape Shoalwater Washington to Florence or out 
60 nm. 


Gale Warning from 1 PM this afternoon to 11 am PDT Wednesday 
for coastal waters from Cape Shoalwater Washington to Florence or out 
60 nm. 


Small Craft Advisory for hazardous seas until 1 PM PDT this 
afternoon for coastal waters from Cape Shoalwater Washington to 
Florence or out 60 nm. 


Small Craft Advisory for rough Columbia River bar until 6 PM 
PDT this evening. 


&& 




$$ 


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This discussion is for northwest Oregon and southwest Washington 
from the Cascade crest to 60 nautical miles offshore. The area is 
commonly referred to as the forecast area. 
&& 






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