Gresham, Oregon Weather Conditions

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Current Conditions

  • 74°
  • Overcast
  • Wind: SSW 10 mph
  • Humidity: 43%
  • Visibility: 10.0 miles
  • Dew Point: 50°
  • Pressure: 29.88 in. -

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Next 12 Hours

2  pm
5  pm
8  pm
11  pm
2  am
Overcast
Overcast
Overcast
Overcast
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
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73°
71°
67°
63°
60°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Tuesday
  • Overcast
  • High: 74 °
  • Low: 55 °
  • Overcast
  • Wednesday
  • Chance of Rain
  • High: 68 °
  • Low: 49 °
  • Chance of Rain
  • Thursday
  • Clear
  • High: 69 °
  • Low: 47 °
  • Clear
  • Friday
  • Partly Cloudy
  • High: 70 °
  • Low: 47 °
  • Partly Cloudy
  • Saturday
  • Clear
  • High: 74 °
  • Low: 49 °
  • Clear

Forecast for Gresham, Oregon

Updated: 9:48 am PDT on September 1, 2015

  • Today

    Mostly cloudy. A 40 percent chance of rain in the afternoon. Highs 70 to 75. Southwest wind 5 to 10 mph. Rainfall amounts less than a tenth of an inch.

  • Tonight

    Mostly cloudy. Chance of showers in the evening...then showers likely after midnight. Lows around 55. Southwest wind 5 to 15 mph. Chance of precipitation 70 percent. Rainfall amounts around a tenth of an inch.

  • Wednesday

    Showers likely in the morning...then showers likely and a slight chance of thunderstorms in the afternoon. Highs 65 to 70. Southwest wind 5 to 10 mph. Chance of precipitation 60 percent. Rainfall amounts around a tenth of an inch...except higher amounts possible in thunderstorms.

  • Wednesday Night

    Mostly cloudy. Chance of showers and a slight chance of thunderstorms in the evening...then a slight chance of showers after midnight. Cooler. Lows 45 to 50. Northwest wind 5 to 10 mph. Chance of precipitation 40 percent.

  • Thursday

    Partly sunny. Slight chance of showers in the morning... then a slight chance of showers and thunderstorms in the afternoon. Highs 65 to 70. Southwest wind 5 to 10 mph. Chance of precipitation 20 percent.

  • Thursday Night

    Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows 45 to 50.

  • Friday

    Partly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs 65 to 70.

  • Friday Night

    Mostly cloudy with a 20 percent chance of showers and thunderstorms in the evening...then partly cloudy after midnight. Lows 45 to 50.

  • Saturday

    Partly cloudy. Highs 70 to 75.

  • Saturday Night

    Partly cloudy. Lows 45 to 50.

  • Sunday

    Partly cloudy. Highs around 75.

  • Sunday Night

    Partly cloudy. Lows 50 to 55.

  • Labor Day

    Partly cloudy. Highs 75 to 80.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Hogan and Roberts, Gresham, OR

Updated: 1:15 PM PDT

Temperature: 73.9 °F Dew Point: 40 °F Humidity: 29% Wind: South at 2.2 mph Pressure: 29.50 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Near Springwater Trail, Gresham, OR

Updated: 1:16 PM PDT

Temperature: 75.4 °F Dew Point: 53 °F Humidity: 46% Wind: Calm Pressure: 29.97 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Along Johnson Creek, Gresham, OR

Updated: 1:09 PM PDT

Temperature: 72.7 °F Dew Point: 39 °F Humidity: 32% Wind: Calm Pressure: 28.88 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: North Central, Gresham, OR

Updated: 1:15 PM PDT

Temperature: 74.1 °F Dew Point: 56 °F Humidity: 53% Wind: North at - Pressure: 30.00 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Eastman Park, Gresham, OR

Updated: 1:10 PM PDT

Temperature: 74.4 °F Dew Point: 55 °F Humidity: 51% Wind: NNE at 1.0 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: East Gresham, Greshan, OR

Updated: 1:15 PM PDT

Temperature: 76.5 °F Dew Point: 55 °F Humidity: 47% Wind: ESE at 2.0 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Brookfield, Gresham, OR

Updated: 1:02 PM PDT

Temperature: 76.6 °F Dew Point: 53 °F Humidity: 44% Wind: West at 5.3 mph Pressure: 29.60 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Binford Lake, Gresham, OR

Updated: 1:16 PM PDT

Temperature: 75.6 °F Dew Point: 55 °F Humidity: 49% Wind: ESE at 1.1 mph Pressure: 29.63 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: APRSWXNET, Fairview, OR

Updated: 12:01 PM PDT

Temperature: 73 °F Dew Point: 53 °F Humidity: 50% Wind: SSW at 4 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Kelly Creek, Gresham, OR

Updated: 1:15 PM PDT

Temperature: 80.6 °F Dew Point: 58 °F Humidity: 46% Wind: Calm Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 81 °F Graphs

Location: Kiku, Troutdale, OR

Updated: 1:16 PM PDT

Temperature: 77.4 °F Dew Point: 54 °F Humidity: 44% Wind: WSW at 2.9 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: APRSWXNET, Troutdale, OR

Updated: 12:47 PM PDT

Temperature: 73 °F Dew Point: 52 °F Humidity: 48% Wind: SSW at 4 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: APRSWXNET, Gresham, OR

Updated: 12:47 PM PDT

Temperature: 79 °F Dew Point: 56 °F Humidity: 46% Wind: North at 5 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 80 °F Graphs

Location: Red Raven, Damascus, OR

Updated: 1:16 PM PDT

Temperature: 73.2 °F Dew Point: 52 °F Humidity: 47% Wind: West at 3.8 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Sandee Palisades, Troutdale, OR

Updated: 1:16 PM PDT

Temperature: 75.4 °F Dew Point: 53 °F Humidity: 46% Wind: West at 2.0 mph Pressure: 29.85 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Meadowcrest Farm Estates, Portland, OR

Updated: 1:06 PM PDT

Temperature: 81.0 °F Dew Point: 54 °F Humidity: 39% Wind: West at 1.7 mph Pressure: 29.68 in Hourly Precipitation: - Heat Index: 81 °F Graphs

Location: The 156, Portland, OR

Updated: 1:15 PM PDT

Temperature: 80.2 °F Dew Point: 52 °F Humidity: 38% Wind: SSW at 1.7 mph Pressure: 29.81 in Hourly Precipitation: - Heat Index: 80 °F Graphs

Location: Powell Butte (GO BLAZERS), Portland, OR

Updated: 1:16 PM PDT

Temperature: 73.9 °F Dew Point: 54 °F Humidity: 49% Wind: WNW at 1.5 mph Pressure: 29.71 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Red's House, Portland, OR

Updated: 1:16 PM PDT

Temperature: 76.0 °F Dew Point: 54 °F Humidity: 46% Wind: SE at 2.0 mph Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: APRSWXNET, Clackamas, OR

Updated: 12:56 PM PDT

Temperature: 69 °F Dew Point: 54 °F Humidity: 59% Wind: West at 1 mph Pressure: 29.81 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Staly Addition, Damascus, OR

Updated: 1:15 PM PDT

Temperature: 70.8 °F Dew Point: 53 °F Humidity: 54% Wind: SSW at 11.0 mph Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Mr. Lightning, Damascus, OR

Updated: 1:16 PM PDT

Temperature: 72.5 °F Dew Point: 54 °F Humidity: 53% Wind: NE at 2.0 mph Pressure: 29.86 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Pleasant Valley, Portland, OR

Updated: 1:16 PM PDT

Temperature: 75.9 °F Dew Point: 76 °F Humidity: 46% Wind: South at 1.6 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Summerplace, Portland, OR

Updated: 1:01 PM PDT

Temperature: 79.0 °F Dew Point: 54 °F Humidity: 42% Wind: SSW at 2.7 mph Pressure: 29.67 in Hourly Precipitation: - Heat Index: 79 °F Graphs

Location: Southeast Portland, Portland, OR

Updated: 1:10 PM PDT

Temperature: 77.2 °F Dew Point: 58 °F Humidity: 51% Wind: North at - Pressure: 29.92 in Hourly Precipitation: - Heat Index: 79 °F Graphs

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

Updated: 1:16 PM PDT

Temperature: 75.9 °F Dew Point: 50 °F Humidity: 41% Wind: SSE at 4.5 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: APRSWXNET, Portland, OR

Updated: 1:00 PM PDT

Temperature: 75 °F Dew Point: 50 °F Humidity: 41% Wind: South at 7 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Donatello Loop, Happy Valley, OR

Updated: 1:16 PM PDT

Temperature: 70.5 °F Dew Point: 60 °F Humidity: 70% Wind: SE at 6.0 mph Pressure: 29.96 in Hourly Precipitation: 0.00 in Heat Index: 74 °F Graphs

Location: Russell, Portland, OR

Updated: 1:16 PM PDT

Temperature: 75.0 °F Dew Point: 49 °F Humidity: 40% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Cottrell Farm, Boring, OR

Updated: 1:10 PM PDT

Temperature: 70.9 °F Dew Point: 54 °F Humidity: 56% Wind: West at 3.0 mph Pressure: 29.72 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

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

Updated: 1:16 PM PDT

Temperature: 75.6 °F Dew Point: 57 °F Humidity: 52% Wind: ESE at 1.0 mph Pressure: 29.88 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: The Farrell House, Camas, WA

Updated: 1:15 PM PDT

Temperature: 76.3 °F Dew Point: 34 °F Humidity: 21% Wind: South at 11.5 mph Pressure: 29.77 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: APRSWXNET, Troutdale, OR

Updated: 12:53 PM PDT

Temperature: 74 °F Dew Point: 55 °F Humidity: 51% Wind: SSW at 1 mph Pressure: 29.93 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: APRSWXNET, Boring, OR

Updated: 12:46 PM PDT

Temperature: 71 °F Dew Point: 56 °F Humidity: 60% Wind: SW at 5 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Portland or 
929 am PDT Tuesday Sep 1 2015 


Synopsis...a cold front will slowly move southward into southwest 
Washington and extreme northwest Oregon today...and into the 
remainder of northwest Oregon tonight for a little light rain or 
showers. The southern part of the associated trailing upper low will 
slowly extend into southwest Washington and northwest Oregon 
Wednesday for more showers...and linger over the Pacific northwest 
Thursday. Energy on the west side of the upper low will drop down 
along the coast Thursday night then swing inland mainly south of our 
forecast area Friday. However...the colder air aloft will be more 
over our area Friday for a greater chance of afternoon and evening 
showers and thunderstorms. The low will move off to the east this 
weekend for improving weather...though another system is possible 
early next week. 


&& 


Update...radar this morning shows light rain over mainly Pacific and 
Clatsop counties associated with a cold front moving southeast along 
the coast. Rain will be very slow to move inland and will tend to 
dissipate as it does so...so have lowered probability of precipitation for this morning for 
most areas outside of where rain is currently falling. 850 mb winds 
turn more westerly later today and tonight...which may rain shadow 
the valley so have also lowered probability of precipitation a bit there through the late 
evening. Looks like the north coast...Coast Range...and Cascades will 
see the best chance for rain for the next 24 hours or so. The upper 
low remains over British Columbia this morning and through the day 
today...so dynamics should not be present for any thunder. 


This morning is starting out mainly clear in the central forecast 
area with stratus from the front north and what is probably marine 
stratus south. The marine stratus will slowly dissipate this morning 
but frontal stratus will spread across the area. Overall most inland 
locations will see some sun before overcast skies envelop the area. 
Bowen 


Short term (previous discussion)...satellite imagery and National 
Weather Service Doppler radar show a front along the central 
Washington coast early this morning. The upper clouds with this front 
have sheared off to the east of the Cascades. The lower level clouds 
are slowly moving southward. The models show it slowly moving into 
southwest Washington and extreme northwest Oregon today...then across 
the remainder of northwest Oregon tonight. Infrared satellite imagery 
shows a jet streak/short wave out around 45n/135w that the models 
move through the Pacific northwest this afternoon and evening. This 
appears to be the feature that will keep the front somewhat active as 
it moves into our forecast area. Precipitation will not be a lot with 
this front...perhaps a quarter inch on the north coast and in the 
coastal mountains...up to a tenth in the North Valley...and one or 
two tenths in the Cascades...with lesser amounts in the south. 


On Wednesday the southern part of the associated upper low extends 
southward into our forecast area. This should produce some decent 
showers especially during the first half or so of the day as a decent 
short wave moves through. There may be enough cooling aloft for a 
slight chance of thunder as well...and model lifted indices support 
this idea. 


The upper trough lingers and sags a little farther south on Thursday 
for some more showers...and a another short wave moves through as 
well. There may be another chance of thunder as well in the afternoon 
and evening. 


Temperatures will stay below normal through the period...hovering on one 
side or the other of 70 in the north...and a few degrees warmer near 
Eugene. 


Snow levels will be lowering to possibly as low as 6000 to 7000 feet 
around Mount Hood northward...the lowest we have seen since Spring. 
Tolleson 


Long term...Thursday night through Monday. The models are coming 
together with the upper low dropping southward on Thursday night and 
Friday. The initial main energy drops south along the coast and then 
swings inland mainly to our south. But then we will be under a 
broader portion of the cold pool aloft for Friday afternoon and 
evening...and expect some diurnal showers and possibly a few 
thunderstorms to develop around the area. The upper low moves off to 
the east over the weekend that should bring some improving weather to 
the area. The models suggest the next system could arrive sometime 
early next week. Tolleson 


&& 


Aviation...mostly VFR conditions this morning. However...there 
are MVFR ceilings and visibilities at kast as a front is producing moderate 
rain for the Washington and northern Oregon coast. The front will 
stall in this region before slowly moving inland late this 
afternoon and over the central Oregon Cascades this evening. 
Expect MVFR ceilings with the heavier rain as the front moves across 
the region. Post cold frontal onshore wind may result in IFR 
ceilings for the coast this afternoon. Inland sites should not drop 
lower than a high end MVFR at worst and probably remain VFR with 
ceilings around 035. 


Kpdx and approaches...VFR although ceilings lower to 035 as a weak 
cold front crosses the field 20-23z. Tj/jbonk 


&& 


Marine...a weak coastal jet will develop this morning with gusty 
winds up to 25 knots possible through this afternoon...mainly along 
the north Oregon and South Washington coasts. These winds may be 
enough to increase wind waves...and overall sea heights above 10 
feet and have issued a Small Craft Advisory for seas for the 
northern waters within 10 nm. 


A surface low over the Gulf of Alaska...just offshore of the Dixon 
Entrance in Alaska is generating large swell across the NE 
Pacific this morning. Seas at buoy 4 which is off of the northern 
b.C. Coast is reporting 17 feet seas and buoy 36 which is off the 
southern b.C. Coast has 13 feet seas. These seas are running around 
2 feet above enp guidance. A simple swell decay model suggests that 
the seas will be around 10 feet as they reach northern Oregon waters 
which is around 1 feet above guidance. Therefore expect a brief 
period of 10 to 11 feet swell to move through the waters Wednesday 
afternoon and evening. 


Surface high pressure will build over the waters Thursday as low 
pressure sits over northern California and northerly winds will develop 
over the waters by Friday. Tj 


&& 


Pqr watches/warnings/advisories... 
or...none. 
Washington...none. 
Pz...Small Craft Advisory for winds until 4 PM PDT this afternoon for 


Coastal waters from Cape Shoalwater Washington to Cascade Head or 
out 10 nm. 


Small Craft Advisory for hazardous seas until 6 PM PDT this 
evening for coastal waters from Cape Shoalwater Washington to 
Cascade Head or out 10 nm. 


Small Craft Advisory for rough Columbia River bar from 5 PM 
this afternoon to 10 PM PDT this evening. 


Small Craft Advisory for rough Columbia River bar from 6 am to 
10 am PDT 
Wednesday. 


&& 


$$ 


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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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