Gresham, Oregon Weather Conditions

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Current Conditions

  • 68°
  • Light Rain
  • Wind: East 6 mph
  • Humidity: 76%
  • Visibility: 10.0 miles
  • Dew Point: 60°
  • Pressure: 30.04 in. -

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Next 12 Hours

5  pm
8  pm
11  pm
2  am
5  am
Rain Showers
Rain Showers
Rain Showers
Rain Showers
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Rain Showers
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79°
77°
70°
61°
61°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Rain Showers
  • High: 79 °
  • Low: 57 °
  • Rain Showers
  • Wednesday
  • Chance of a Thunderstorm
  • High: 66 °
  • Low: 55 °
  • Chance of T-Storms
  • Thursday
  • Chance of Rain
  • High: 75 °
  • Low: 55 °
  • Chance of Rain
  • Friday
  • Partly Cloudy
  • High: 77 °
  • Low: 57 °
  • Partly Cloudy
  • Saturday
  • Partly Cloudy
  • High: 82 °
  • Low: 61 °
  • Partly Cloudy

Forecast for Gresham, Oregon

Updated: 2:00 PM PDT on July 22, 2014

  • Tuesday

    Overcast with rain showers. High of 79F. Winds less than 5 mph. Chance of rain 100%.

  • Tuesday Night

    Partly cloudy with rain showers in the evening, then overcast with rain showers. Low of 57F. Winds less than 5 mph. Chance of rain 70%.

  • Wednesday

    Overcast with a chance of a thunderstorm and rain showers. High of 66F. Winds from the SSW at 5 to 10 mph. Chance of rain 80% with rainfall amounts near 0.3 in. possible.

  • Wednesday Night

    Partly cloudy with a chance of rain. Low of 55F. Winds from the SSW at 5 to 15 mph. Chance of rain 50%.

  • Thursday

    Overcast with a chance of rain in the morning, then partly cloudy. High of 75F. Winds from the WSW at 5 to 10 mph. Chance of rain 20%.

  • Thursday Night

    Clear in the evening, then partly cloudy. Low of 55F. Winds less than 5 mph.

  • Friday

    Partly cloudy. High of 77F. Winds from the NW at 5 to 10 mph.

  • Friday Night

    Clear in the evening, then partly cloudy. Low of 57F. Winds less than 5 mph.

  • Saturday

    Partly cloudy. High of 82F. Winds from the NNW at 5 to 10 mph.

  • Saturday Night

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

  • Sunday

    Mostly cloudy. High of 88F. Winds from the NNW at 5 to 10 mph.

  • Sunday Night

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

  • Monday

    Partly cloudy. High of 88F. Winds from the NW at 5 to 10 mph.

  • Monday Night

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

  • Tuesday

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

  • Tuesday Night

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

  • Wednesday

    Clear. High of 84F. Winds less than 5 mph.

  • Wednesday Night

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

  • Thursday

    Clear. High of 84F. Winds less than 5 mph.

  • Thursday Night

    Clear. Low of 57F. Winds less than 5 mph.

  • Friday

    Partly cloudy. High of 84F. Winds less than 5 mph.

  • Friday Night

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

  • Saturday

    Clear. High of 84F. Winds less than 5 mph.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Downtown, Gresham, OR

Updated: 4:22 PM PDT

Temperature: 65.9 °F Dew Point: 63 °F Humidity: 89% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.06 in Heat Index: - Graphs

Location: Hogan and Roberts, Gresham, OR

Updated: 4:25 PM PDT

Temperature: 66.6 °F Dew Point: 54 °F Humidity: 65% Wind: Calm Pressure: 29.50 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Near Springwater Trail, Gresham, OR

Updated: 4:23 PM PDT

Temperature: 66.4 °F Dew Point: 64 °F Humidity: 93% Wind: Calm Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Along Johnson Creek, Gresham, OR

Updated: 4:17 PM PDT

Temperature: 65.5 °F Dew Point: 49 °F Humidity: 57% Wind: Calm Pressure: 29.80 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Eastman Park, Gresham, OR

Updated: 4:20 PM PDT

Temperature: 66.5 °F Dew Point: 62 °F Humidity: 86% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET Gresham OR US, Fairview, OR

Updated: 4:01 PM PDT

Temperature: 70 °F Dew Point: 64 °F Humidity: 81% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Stewart Ridge, Troutdale, OR

Updated: 4:23 PM PDT

Temperature: 69.3 °F Dew Point: 50 °F Humidity: 50% Wind: Calm Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: East Gresham, Gresham, OR

Updated: 4:26 PM PDT

Temperature: 66.2 °F Dew Point: 41 °F Humidity: 40% Wind: Calm Pressure: 29.83 in Hourly Precipitation: 0.04 in Heat Index: - Graphs

Location: APRSWXNET Troutdale OR US, Troutdale, OR

Updated: 4:05 PM PDT

Temperature: 66 °F Dew Point: 63 °F Humidity: 89% Wind: Calm Pressure: 30.06 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Troutdale, Troutdale, OR

Updated: 4:26 PM PDT

Temperature: 67.5 °F Dew Point: 45 °F Humidity: 45% Wind: Calm Pressure: 30.09 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Red's House, Portland, OR

Updated: 4:26 PM PDT

Temperature: 68.6 °F Dew Point: 63 °F Humidity: 82% Wind: ENE at 1.0 mph Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: APRSWXNET Damascus OR US, Clackamas, OR

Updated: 3:59 PM PDT

Temperature: 64 °F Dew Point: 62 °F Humidity: 93% Wind: Calm Pressure: 29.99 in Hourly Precipitation: 0.04 in Heat Index: - Graphs

Location: Staly Addition, Damascus, OR

Updated: 4:26 PM PDT

Temperature: 65.2 °F Dew Point: 62 °F Humidity: 89% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Mr. Lightning, Damascus, OR

Updated: 4:25 PM PDT

Temperature: 65.1 °F Dew Point: 61 °F Humidity: 87% Wind: ESE at 1.0 mph Pressure: 30.03 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Pleasant Valley, Portland, OR

Updated: 4:26 PM PDT

Temperature: 67.6 °F Dew Point: 68 °F Humidity: 89% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 4:25 PM PDT

Temperature: 69.8 °F Dew Point: 11 °F Humidity: 5% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 4:26 PM PDT

Temperature: 67.1 °F Dew Point: 63 °F Humidity: 88% Wind: Calm Pressure: 30.05 in Hourly Precipitation: 0.04 in Heat Index: - Graphs

Location: APRSWXNET Happy Valley OR US, Portland, OR

Updated: 4:05 PM PDT

Temperature: 67 °F Dew Point: 62 °F Humidity: 83% Wind: East at 2 mph Pressure: 30.05 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Russell, Portland, OR

Updated: 4:26 PM PDT

Temperature: 71.0 °F Dew Point: 61 °F Humidity: 71% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Cottrell Farm, Boring, OR

Updated: 4:20 PM PDT

Temperature: 65.1 °F Dew Point: 62 °F Humidity: 88% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

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

Updated: 4:25 PM PDT

Temperature: 67.0 °F Dew Point: 65 °F Humidity: 94% Wind: Calm Pressure: 30.04 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: The Farrell House, Camas, WA

Updated: 4:26 PM PDT

Temperature: 68.7 °F Dew Point: 55 °F Humidity: 62% Wind: SE at 1.2 mph Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Sunrise Heights, Happy Valley, OR

Updated: 4:25 PM PDT

Temperature: 67.3 °F Dew Point: 62 °F Humidity: 82% Wind: Calm Pressure: 30.01 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Forest View, Washougal, WA

Updated: 4:25 PM PDT

Temperature: 63.7 °F Dew Point: 62 °F Humidity: 93% Wind: Calm Pressure: 29.61 in Hourly Precipitation: 0.03 in Heat Index: - Graphs

Location: Sandy Swimming Hole, Washougal, WA

Updated: 4:25 PM PDT

Temperature: 67.8 °F Dew Point: 64 °F Humidity: 87% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.02 in Heat Index: - Graphs

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

Updated: 4:25 PM PDT

Temperature: 65.0 °F Dew Point: 63 °F Humidity: 93% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Mt. Scott Summit, Happy Valley, OR

Updated: 4:25 PM PDT

Temperature: 66.3 °F Dew Point: 64 °F Humidity: 91% Wind: ESE at 2.0 mph Pressure: 30.04 in Hourly Precipitation: 0.02 in Heat Index: - Graphs

Location: Hoffman KB, Portland, OR

Updated: 4:12 PM PDT

Temperature: 70.7 °F Dew Point: 63 °F Humidity: 76% Wind: SW at 1.0 mph Pressure: 29.99 in Hourly Precipitation: - Heat Index: 73 °F Graphs

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

Updated: 4:26 PM PDT

Temperature: 67.5 °F Dew Point: 62 °F Humidity: 82% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.02 in Heat Index: - Graphs

Location: MesoWest Portland - NWS WFO OR US PDXWFO, Portland, OR

Updated: 4:00 PM PDT

Temperature: 75 °F Dew Point: 60 °F Humidity: 60% Wind: East at 4 mph Pressure: - Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: APRSWXNET Troutdale OR US, Troutdale, OR

Updated: 4:03 PM PDT

Temperature: 67 °F Dew Point: 63 °F Humidity: 86% Wind: Calm Pressure: 30.11 in Hourly Precipitation: 0.02 in Heat Index: - Graphs

Location: APRSWXNET Boring OR US, Boring, OR

Updated: 3:00 PM PDT

Temperature: 65 °F Dew Point: -18 °F Humidity: 3% Wind: Calm Pressure: 30.00 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 
202 PM PDT Tuesday Jul 22 2014 


Synopsis...a low pressure system will bring an increasing threat 
of rain showers and even a few thunderstorms to the area tonight and 
especially Wednesday. After a cloudy and wet start to 
Wednesday...expect a mix of sunshine and showers in the afternoon. 
Drier and more Summer-like temperatures are expected to arrive late 
Thursday and Friday...before temperatures push 90f late in the 
weekend. 


&& 


Short term...this evening...a vorticity maximum...apparent in water vapor 
satellite imagery...near the Bay area will lift northeastward this 
afternoon and evening into south central Oregon. Visible satellite 
imagery shows fairly extensive cloud cover over the eastern half of 
the forecast area with a few breaks creeping into the Cascades. A 
destabilizing lower atmosphere and lift ahead of the aforementioned 
vorticity maximum should allow thunderstorms to develop across south central 
Oregon this afternoon. In fact...convection is beginning to fire 
east of the central Oregon Cascades near Bend. With additional 
heating this afternoon...expect some of this convection to begin 
developing just to the west of the crest...but there still remains 
uncertainty in how much...if any...will develop. The latest rap 
guidance suggests a few thunderstorms will be possible late this 
afternoon over the Lane and Linn County Cascades...but if the 
current middle level clouds linger too much longer this 
afternoon...surface based convection will likely stay entirely east 
of our forecast area. The latest hrrr supports the latter idea. It 
should be noted that if any storms do break the cap on our side of 
the crest...40-45 knots of 0-6km bulk shear and cape values between 500- 
750 j/kg will aid storm organization. Frequent lightning...and 
possibly marginally severe hail and damaging winds would be the 
primary threats of concern if storms were to materialize. 
Again...the most likely area to experience such storms is primarily 
near the Cascade crest...south of Mount Jefferson. 


For tonight...the large shortwave trough currently near 135w...due 
west of Oregon...will elongate further tonight...turning the middle 
level flow over northwest Oregon slightly more southerly. The NAM 
brings a piece of the vorticity maximum/pv anomaly near 130w and 35n across 
the area late tonight. With negative thetae lapse rates between 
700-500mb advecting into the region...and region being in the right 
entrance/left exit region of two upper level jets...we may see 
showers and even a few elevated thunderstorms spread northward across 
western Oregon late tonight. However...confidence is low so the 
thunder mention was limited to a slight chance. The latest hrrr 
keeps the bulk of the activity right along the Cascade crest and 
points east...but given the pattern will keep the mention in the 
forecast. 


The previously mentioned elongating shortwave trough near 135w will 
begin to push east-northeastward across the area Wednesday. Strong 
middle level frontogenesis should lead to a fairly organized north-south 
oriented band of rain moving eastward into the Oregon coast Wednesday 
morning. Some modest middle level instability coupled with the dynamics 
may lead to a few lightning strikes along the front...particularly 
over the coastal waters and near the coast late tonight into 
Wednesday morning. 


The band of rain should push eastward across the area Wednesday 
morning. Subsidence behind the middle level front may lead to a rather 
abrupt end to the rain/clouds early to middle Wednesday afternoon. 
However...any clearing will not last long...as the lower atmosphere 
should destabilize quickly...and a Spring-like pattern of scattered 
showers and isolated thunderstorms will likely ensue late Wednesday 
afternoon and early evening. The greatest instability will be over 
the northern half of the forecast area so the mention of thunder was 
increased to chance wording. 


With a surface low pressure lingering just off the southwest 
Washington coast Wednesday there may be a tendency for surface winds 
in the Willamette Valley and along the lower Columbia River to have a 
bit more of a S to south-southeast component than otherwise expected. Combined 
with west-southwest winds of 25 knots at 900mb and 40kt at 500mb...a rapidly 
strengthening updraft could rotate briefly. However...confidence is 
very low in this actually occurring somewhere within the County Warning Area...but 
it will still be Worth monitoring. The more expected hazards... 
gusty winds and small hail were added to the thunder wording in the 
grids. 


On the fire front...most locations across the forecast area should 
see wetting rains of a quarter to half inch with a few locations 
likely pushing an inch of rain...particularly across southwest 
Washington. It should be noted wetting rains are less likely towards 
Lane County...but certainly appear possible Wednesday. 


Expect a drying trend Wednesday night into Thursday before more 
seasonable weather returns Friday. /Neuman 




Long term...high pressure will build westward across the Continental U.S. 
Amplifying an upper-level ridge that will set up over the 
northwestern U.S. This will increase temperatures back to above 
normal over the weekend. There is a possible disturbance that could 
move through as early as Sunday night...but much uncertainty exists 
in the timing of this system and location. -McCoy 




&& 




Aviation...generally VFR this afternoon with mostly clear skies north 
of a k6s2-kkls line. S of this line is also VFR but with scattered-broken 
cloud deck generally above 6000 feet. The exceptions are a few local 
MVFR pockets associated with showers...and along the immediate coast 
where LIFR marine stratus has surged north from k6s2 to just north of konp. 
Expect trends to persist until tonight when rain associated with 
approaching low pressure system moves into the region starting 
around 10z. Expect ceilings to lower after 12z...with MVFR ceilings around 
2000 feet possible. Local pockets of IFR possible in heavier 
rain...and along the coast. Higher terrain and mountains obscured 
tonight through middle morning Wednesday. 


Kpdx and approaches...expect VFR to continue through this evening 
with scattered clouds around 3000 feet and an overcast deck above 5000 
feet. Some light rain possible...but expect rain to increase after 12z 
with ceilings lowering to low VFR to higher MVFR. Cannot rule out some 
thunder development over eastern approaches this evening...or over much 
of the Ops area tomorrow afternoon...but not enough confidence to 
include in taf for now. Cullen 




&& 




Marine...relatively quiet conditions over the waters continue 
tonight as the surface gradient remains weak in between 
systems...keeping winds 15 knots or less. Seas remain 3-4 feet today with 
a continued small west-northwest swell. 


A low pressure system will pass through the waters late tonight into 
Wednesday. Models have trended to indicate the potential for marginal 
small craft winds tomorrow afternoon...both S winds along the 
coastal inner waters and also over much of the waters as the surface 
low pushes across. Confidence remains somewhat low at this time 
however so will let next shift evaluate next model cycle before 
potentially raising the Small Craft Advisory. Later this week...high 
pressure redevelops over NE Pacific as thermal low pressure builds over north 
California. This will bring a return to gusty north winds and steep wind 
driven seas...particularly in the late afternoon and evening 
hours...Friday through the weekend. Cullen 




&& 




Pqr watches/warnings/advisories... 
or...WA...none. 
Pz...none. 




&& 




$$ 




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




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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. 
Commonly referred to as the forecast area. 






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