Gresham, Oregon Weather Conditions

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Current Conditions

  • 77°
  • Clear
  • Wind: Variable 6 mph
  • Humidity: 52%
  • Visibility: 10.0 miles
  • Dew Point: 58°
  • Pressure: 30.02 in. +

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Next 12 Hours

11  pm
2  am
5  am
8  am
11  am
Clear
Clear
Clear
Clear
Clear
Clear
Partly Cloudy
Partly Cloudy
Partly Cloudy
Partly Cloudy
72°
61°
57°
64°
72°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Thursday
  • Partly Cloudy
  • High: 89 °
  • Low: 59 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 86 °
  • Low: 59 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 86 °
  • Low: 59 °
  • Partly Cloudy
  • Sunday
  • Partly Cloudy
  • High: 86 °
  • Low: 59 °
  • Partly Cloudy
  • Monday
  • Clear
  • High: 84 °
  • Low: 59 °
  • Clear

Forecast for Gresham, Oregon

Updated: 2:00 AM PDT on July 31, 2014

  • Thursday

    Partly cloudy in the morning, then clear. High of 88F. Winds from the WNW at 5 to 10 mph.

  • Thursday Night

    Partly cloudy. Low of 59F. Winds less than 5 mph.

  • Friday

    Partly cloudy in the morning, then clear. High of 86F. Winds from the WNW at 5 to 10 mph.

  • Friday Night

    Partly cloudy in the evening, then clear. Low of 59F. Winds from the NW at 5 to 10 mph.

  • Saturday

    Partly cloudy in the morning, then clear. High of 86F. Winds from the NW at 5 to 10 mph.

  • Saturday Night

    Clear in the evening, then partly cloudy. Low of 59F. Winds less than 5 mph.

  • Sunday

    Partly cloudy in the morning, then clear. High of 86F. Winds less than 5 mph.

  • Sunday Night

    Clear. Low of 59F. Winds less than 5 mph.

  • Monday

    Partly cloudy in the morning, then clear. High of 84F. Winds from the NW at 5 to 10 mph.

  • Monday Night

    Clear. Low of 59F. Winds less than 5 mph.

  • Tuesday

    Partly cloudy. High of 86F. Winds from the WNW at 5 to 10 mph.

  • Tuesday Night

    Partly cloudy. Low of 59F. Winds less than 5 mph.

  • Wednesday

    Clear. High of 86F. Winds from the WNW at 5 to 10 mph.

  • Wednesday Night

    Clear. Low of 61F. Winds less than 5 mph.

  • Thursday

    Clear. High of 84F. Winds from the WNW at 5 to 10 mph.

  • Thursday Night

    Clear. Low of 59F. Winds less than 5 mph.

  • Friday

    Clear. High of 75F. Winds less than 5 mph.

  • Friday Night

    Clear. Low of 52F. Winds less than 5 mph.

  • Saturday

    Partly cloudy. High of 73F. Winds less than 5 mph.

  • Saturday Night

    Partly cloudy. Low of 50F. Winds less than 5 mph.

  • Sunday

    Partly cloudy. High of 73F. Winds less than 5 mph.

  • Sunday Night

    Clear. Fog overnight. Low of 50F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Downtown, Gresham, OR

Updated: 12:17 AM PDT

Temperature: 69.7 °F Dew Point: 59 °F Humidity: 68% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Hogan and Roberts, Gresham, OR

Updated: 12:21 AM PDT

Temperature: 69.1 °F Dew Point: 43 °F Humidity: 39% Wind: Calm Pressure: 29.47 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Near Springwater Trail, Gresham, OR

Updated: 12:22 AM PDT

Temperature: 66.7 °F Dew Point: 58 °F Humidity: 74% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Along Johnson Creek, Gresham, OR

Updated: 12:13 AM PDT

Temperature: 67.5 °F Dew Point: 38 °F Humidity: 36% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Eastman Park, Gresham, OR

Updated: 12:20 AM PDT

Temperature: 69.0 °F Dew Point: 58 °F Humidity: 68% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET Gresham OR US, Fairview, OR

Updated: 12:01 AM PDT

Temperature: 72 °F Dew Point: 59 °F Humidity: 63% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Stewart Ridge, Troutdale, OR

Updated: 12:21 AM PDT

Temperature: 69.7 °F Dew Point: 46 °F Humidity: 42% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: East Gresham, Gresham, OR

Updated: 12:22 AM PDT

Temperature: 65.5 °F Dew Point: 36 °F Humidity: 33% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET Troutdale OR US, Troutdale, OR

Updated: 11:50 PM PDT

Temperature: 66 °F Dew Point: 61 °F Humidity: 85% Wind: NW at 1 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Red's House, Portland, OR

Updated: 12:22 AM PDT

Temperature: 69.2 °F Dew Point: 57 °F Humidity: 65% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Staly Addition, Damascus, OR

Updated: 12:22 AM PDT

Temperature: 68.6 °F Dew Point: 58 °F Humidity: 68% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Mr. Lightning, Damascus, OR

Updated: 12:20 AM PDT

Temperature: 62.9 °F Dew Point: 57 °F Humidity: 80% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Pleasant Valley, Portland, OR

Updated: 12:22 AM PDT

Temperature: 66.2 °F Dew Point: 66 °F Humidity: 79% Wind: Calm Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 12:22 AM PDT

Temperature: 72.2 °F Dew Point: 56 °F Humidity: 58% Wind: Calm Pressure: 30.02 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Russell, Portland, OR

Updated: 12:22 AM PDT

Temperature: 70.0 °F Dew Point: 59 °F Humidity: 69% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Cottrell Farm, Boring, OR

Updated: 12:20 AM PDT

Temperature: 65.9 °F Dew Point: 60 °F Humidity: 81% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 12:22 AM PDT

Temperature: 69.4 °F Dew Point: 59 °F Humidity: 69% Wind: SSW at 1.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: The Farrell House, Camas, WA

Updated: 12:22 AM PDT

Temperature: 67.1 °F Dew Point: 46 °F Humidity: 46% Wind: Calm Pressure: 29.94 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Sunrise Heights, Happy Valley, OR

Updated: 12:21 AM PDT

Temperature: 69.4 °F Dew Point: 57 °F Humidity: 65% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Starkwood, Portland, OR

Updated: 12:21 AM PDT

Temperature: 69.8 °F Dew Point: 51 °F Humidity: 52% Wind: Calm Pressure: 29.50 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Forest View, Washougal, WA

Updated: 12:22 AM PDT

Temperature: 63.7 °F Dew Point: 60 °F Humidity: 88% Wind: Calm Pressure: 29.61 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Sandy Swimming Hole, Washougal, WA

Updated: 11:58 PM PDT

Temperature: 65.8 °F Dew Point: 61 °F Humidity: 83% Wind: Calm Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Walgren, Damascus, OR

Updated: 12:22 AM PDT

Temperature: 69.3 °F Dew Point: 54 °F Humidity: 58% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 12:21 AM PDT

Temperature: 67.5 °F Dew Point: 58 °F Humidity: 72% Wind: NW at 6.0 mph Pressure: 29.98 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Mt. Scott Summit, Happy Valley, OR

Updated: 12:20 AM PDT

Temperature: 65.9 °F Dew Point: 58 °F Humidity: 75% Wind: North at 4.0 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Hoffman KB, Portland, OR

Updated: 12:17 AM PDT

Temperature: 71.5 °F Dew Point: 59 °F Humidity: 65% Wind: Calm Pressure: 30.01 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: V St and 7th St, Washougal, WA

Updated: 12:22 AM PDT

Temperature: 64.9 °F Dew Point: 58 °F Humidity: 78% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET Damascus OR US, Clackamas, OR

Updated: 10:58 PM PDT

Temperature: 76 °F Dew Point: 59 °F Humidity: 55% Wind: NW at 3 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Corbett, Corbett, OR

Updated: 12:09 AM PDT

Temperature: 64.8 °F Dew Point: 59 °F Humidity: 81% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Rolling Meadows Drive, Washougal, WA

Updated: 12:14 AM PDT

Temperature: 65.7 °F Dew Point: 62 °F Humidity: 88% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Arbor View, Washougal, WA

Updated: 12:22 AM PDT

Temperature: 64.1 °F Dew Point: 60 °F Humidity: 85% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Portland or 
917 PM PDT Wednesday Jul 30 2014 


Synopsis...an upper level ridge over The Rockies and Great Basin 
remains our most dominant weather feature...keeping temperatures a 
few degrees above normal inland. This ridge will slowly erode over 
the next several days...eventually allowing more onshore flow and 
slightly cooler temperatures by early next week. In the meantime 
south-southwesterly flow aloft continues to guide weak disturbances 
into our area for occasional thunderstorm chances in the Cascades. 
One such disturbance should promote another day of enhanced Cascade 
thunderstorm activity Thursday...with another possible Saturday. 


&& 


Update...a fairly repetitive pattern continues. Another round of 
convection over the central Oregon Cascades occurred this evening 
with areas south of Oregon Highway 58 bearing the brunt once again. 
One cell in particular moved off the crest with radar indicated hail 
exceeding an inch. We were unable to verify a warning issued for the 
storm near Willamette Pass but the pass webcam did show a couple 
frames of hail accumulation. So am very confident there was at least 
some treacherous driving for some time along the Highway as the core 
of the storm was a few miles downhill from there. The rest of the 
convective activity has pushed east of the crest with the 
remaining debris clouds slowly eroding overnight. 


In other news...have opted to pull the stratus mention along the 
coast tonight as high resolution models and satellite imagery do not 
support anything much beyond some patchy fog along the immediate 
coast overnight. Looking offshore...there is the shortwave 
mentioned below that has moved to about 40n 133w as of this writing. 
This looks like it could bring enough upper level tropopause fold 
lift and act on parcels around 600 mb. If everything comes together 
just right we may see a high based thunderstorm not terribly long 
after sunrise tomorrow morning. Best chances would be mainly south 
and east of Eugene through the early afternoon. Surface heating 
should be the driving trigger under the Assumption the sky is not 
already covered with debris from earlier. Updates will be available 
shortly. /Jbonk 




&& 


/prev disc issued 250 PM PDT Wednesday Jul 30 2014/ 


Short term...tonight through Saturday...more or less a persistence 
pattern this week over the forecast area...with only small variances 
from day to day. The large weather picture continues to include an 
expansive upper level ridge over The Four Corners...Great Basin... 
and northern rockies. Meanwhile an upper level low persists in the 
Gulf of Alaska. These two features have been causing the upper level 
flow to vary from southwesterly to southerly at times...depending on 
weak disturbances riding along the southeast periphery of the Gulf 
of Alaska upper low. The proximity of the upper ridge has kept the 
marine layer shallow...with all but immediate coastal areas warming 
up a few degrees above normal each day. 


The Pacific northwest is presently between upper disturbances... with 
weak shortwave ridging transiting the region. The associated 
subsidence and slightly warmer temperatures aloft are likely why 
convection has been limited this afternoon...even in the Cascades. 
Thursday should be a different story...as a well defined vortmax is 
gaining strength off the California coast near 35n/135w. Meanwhile remnant 
moisture from excessive-Hurricane Hernan is lifting north into California. 
These two features should combine for fairly widespread convection 
for the Cascades east Thursday and Friday...starting in northern California 
then lifting through Oregon Thursday...then into Washington Friday. 


Pattern recognition-wise it appears likely at least a couple 
thunderstorms will form in our Cascades zones Thursday. However 
looking at model soundings...both moisture and instability are rather 
marginal. That said...modifying NAM or GFS bufr soundings to reflect 
the forecasted temperatures in the Cascade crest yields quite a bit of 
surface based instability...up to 1000 j/kg of cape or more. Overall 
chance of thunderstorms appears to be the best forecast south of Montana 
Jefferson...with a slight chance extending into the foothills of Lane 
County. Slight chance of thunder extends north into the Washington Cascades 
Friday. With flow aloft mainly S-SW...it appears unlikely thunder will 
drift west of the Cascades. A baggy upper level trough lingers over 
the Pacific northwest into the weekend as the upper ridge erodes to our east. 
This could provide enough instability for isolated to scattered 
Cascade thunderstorms to continue into Saturday. 


Elsewhere...expect little sensible change the next few days. High 
temperatures will remain somewhere near 90 degrees for the inland valleys 
while coastal areas are seasonably cooler with highs in the 60s and 
lower 70s. Slightly drier northerly flow temporarily cleared the 
stratus from the coastal waters today...but suspect it will come back 
behind the disturbance Thursday night. No significant deepening nor inland 
intrusion of the marine layer is expected through this weekend. 
Weagle 


Long term...Saturday night through Wednesday...fairly good consensus 
between the medium range models that the upper ridge to our east will 
gradually erode through early next week. This may allow a greater 
westerly/onshore component to the flow...perhaps cooling inland areas 
by a few degrees and down closer to normal. As onshore flow becomes a 
bit stronger...expect the thunder risk to decrease on our side of the 
Cascades. Also the marine layer should deepen a little...pushing a 
bit further inland as the thermal low over the middle-Columbia becomes 
more dominant and increases the onshore pressure gradient/flow. No 
significant widespread rain events on the horizon going well into 
next week. Weagle 


&& 


Aviation...high pressure and weak onshore flow will generally keep 
inland conditions VFR through 00z Friday. It is likely that areas of 
IFR conditions in a low stratus will develop along the coast from 
09z to 12z...and return back to VFR conditions between 17z and 19z. 


Kpdx and approaches...high pressure and northwesterly flow will 
produce VFR conditions through 00z Friday. There is a 20 percent 
chance high end IFR conditions will impact the terminal between 
13z and 16z Thursday. 


&& 


Marine...little change expected to the weather pattern through the 
weekend as high pressure lingers offshore. This will keep a fairly 
typical summertime pattern of north winds...generally strongest each 
day from the late afternoon through midnight. Steep locally driven 
wind waves will tend to dominate the seas for the next few days... 
but total wave heights will generally remain under 6 feet. 


&& 


Pqr watches/warnings/advisories... 
or...none. 
Washington...none. 
Pz...Small Craft Advisory for winds until 11 PM PDT this evening for 
coastal waters from Cape Shoalwater Washington to Cascade Head or 
out 10 nm-coastal waters from Cascade Head to Florence or 
out 10 nm-waters from Cape Shoalwater Washington to Cascade Head or 
from 10 to 60 nm. 


Small Craft Advisory for winds until 3 am PDT Thursday for 
waters from Cascade Head to Florence or from 10 to 60 nm. 


&& 


$$ 


More weather information online at...http://weather.Gov/Portland 


Interact with US via social media 
www.Facebook.Com/US.Nationalweatherservice.Portland.Gov 
www.Twitter.Com/nwsportland 


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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