Portland, Oregon Weather Conditions

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Current Conditions

  • 74°
  • Overcast
  • Wind: NW 12 mph
  • Humidity: 53%
  • Visibility: 10.0 miles
  • Dew Point: 56°
  • Pressure: 29.81 in. -

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Next 12 Hours

5  pm
8  pm
11  pm
2  am
5  am
Overcast
Overcast
Overcast
Overcast
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Mostly Cloudy
Mostly Cloudy
73°
68°
63°
61°
59°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of Rain
  • High: 70 °
  • Low: 51 °
  • Chance of Rain
  • Thursday
  • Partly Cloudy
  • High: 70 °
  • Low: 49 °
  • Partly Cloudy
  • Friday
  • Partly Cloudy
  • High: 71 °
  • Low: 49 °
  • Partly Cloudy
  • Saturday
  • Clear
  • High: 76 °
  • Low: 51 °
  • Clear
  • Sunday
  • Clear
  • High: 78 °
  • Low: 53 °
  • Clear

Forecast for Portland, Oregon

Updated: 2:52 PM PDT on September 1, 2015

  • Tonight

    Mostly cloudy. Slight chance of showers in the evening... then a chance of showers after midnight. Lows around 55. West wind 5 to 15 mph. Chance of precipitation 50 percent. Rainfall amounts around a tenth of an inch.

  • Wednesday

    Mostly cloudy. Chance of showers in the morning...then a chance of showers and a slight chance of thunderstorms in the afternoon. Highs around 70. Light wind. Chance of precipitation 50 percent. Rainfall amounts around a tenth of an inch...except higher amounts possible in thunderstorms.

  • Wednesday Night

    Mostly cloudy. Slight chance of showers and thunderstorms in the evening...then a slight chance of showers after midnight. Lows around 50. West wind 5 to 10 mph. Chance of precipitation 20 percent.

  • Thursday

    Partly sunny with a 20 percent chance of showers. Highs 65 to 70. Light wind.

  • Thursday Night

    Partly cloudy. A 20 percent chance of showers in the evening. Lows 45 to 50. Northwest wind 5 to 10 mph.

  • Friday

    Partly sunny. Highs 65 to 70.

  • Friday Night

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

  • Saturday

    Partly cloudy. Highs 70 to 75.

  • Saturday Night

    Partly cloudy. Lows around 50.

  • Sunday

    Partly cloudy. Highs around 75.

  • Sunday Night

    Partly cloudy. Lows around 50.

  • Labor Day

    Partly cloudy. Highs 75 to 80.

  • Monday Night

    Partly cloudy. Lows 50 to 55.

  • Tuesday

    Partly cloudy. A 20 percent chance of showers in the afternoon. Highs 70 to 75.

Personal Weather Stations

Personal Weather Stations [Add your weather station!]

Location: Southwest Portland, Portland, OR

Updated: 5:10 PM PDT

Temperature: 71.4 °F Dew Point: 58 °F Humidity: 62% Wind: North at - Pressure: 29.91 in Hourly Precipitation: - Heat Index: 76 °F Graphs

Location: Portland - West Hills, Portland, OR

Updated: 5:14 PM PDT

Temperature: 69.2 °F Dew Point: 56 °F Humidity: 62% Wind: NNE at 2.0 mph Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Southwest Portland, Portland, OR

Updated: 5:10 PM PDT

Temperature: 70.9 °F Dew Point: 57 °F Humidity: 61% Wind: North at - Pressure: 29.89 in Hourly Precipitation: - Heat Index: 76 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 5:10 PM PDT

Temperature: 70.5 °F Dew Point: 59 °F Humidity: 67% Wind: North at - Pressure: 29.90 in Hourly Precipitation: - Heat Index: 75 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 5:10 PM PDT

Temperature: 74.7 °F Dew Point: 56 °F Humidity: 51% Wind: North at - Pressure: 29.60 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Hillsdale, Portland, OR

Updated: 5:09 PM PDT

Temperature: 69.9 °F Dew Point: 57 °F Humidity: 63% Wind: SE at 1.0 mph Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: Hillsdale, Portland, OR

Updated: 5:11 PM PDT

Temperature: 69.1 °F Dew Point: 56 °F Humidity: 63% Wind: South at 3.7 mph Pressure: 29.60 in Hourly Precipitation: - Heat Index: - Graphs

Location: Bridlemile, Portland, OR

Updated: 4:35 PM PDT

Temperature: 72.1 °F Dew Point: 56 °F Humidity: 58% Wind: NNW at 2.2 mph Pressure: 29.65 in Hourly Precipitation: - Heat Index: 76 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 5:10 PM PDT

Temperature: 77.4 °F Dew Point: 56 °F Humidity: 48% Wind: North at - Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 79 °F Graphs

Location: APRSWXNET, Portland, OR

Updated: 4:57 PM PDT

Temperature: 75 °F Dew Point: 57 °F Humidity: 54% Wind: Calm Pressure: 29.90 in Hourly Precipitation: 0.00 in Heat Index: 78 °F Graphs

Location: Downtown Portland, Portland, OR

Updated: 5:10 PM PDT

Temperature: 75.9 °F Dew Point: 56 °F Humidity: 49% Wind: North at - Pressure: 29.69 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Multnomah Village North, Portland, OR

Updated: 5:13 PM PDT

Temperature: 71.1 °F Dew Point: 57 °F Humidity: 61% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: N of Bridlemile School, Portland, OR

Updated: 5:11 PM PDT

Temperature: 70.6 °F Dew Point: 56 °F Humidity: 60% Wind: WNW at 3.0 mph Pressure: 29.82 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Hoyt Arboretum, Portland, OR

Updated: 5:04 PM PDT

Temperature: 70.4 °F Dew Point: 56 °F Humidity: 61% Wind: ENE at 2.0 mph Pressure: 29.73 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Westerly, NW Portland, Portland, OR

Updated: 5:12 PM PDT

Temperature: 75.2 °F Dew Point: 57 °F Humidity: 53% Wind: Calm Pressure: 29.78 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Brooklyn, Portland, OR

Updated: 5:14 PM PDT

Temperature: 74.3 °F Dew Point: 56 °F Humidity: 53% Wind: Calm Pressure: 29.30 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Pearl District, Portland, OR

Updated: 5:10 PM PDT

Temperature: 75.2 °F Dew Point: 56 °F Humidity: 50% Wind: North at - Pressure: 29.65 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Sylvan Highlands, Portland, OR

Updated: 5:14 PM PDT

Temperature: 69.1 °F Dew Point: 55 °F Humidity: 60% Wind: Calm Pressure: 29.53 in Hourly Precipitation: 0.00 in Heat Index: - Graphs

Location: South Burlingame, Portland, OR

Updated: 5:15 PM PDT

Temperature: 72.7 °F Dew Point: 56 °F Humidity: 56% Wind: Calm Pressure: 29.45 in Hourly Precipitation: 1.63 in Heat Index: 77 °F Graphs

Location: Buckman, Portland, OR

Updated: 5:10 PM PDT

Temperature: 75.7 °F Dew Point: 57 °F Humidity: 52% Wind: North at - Pressure: 29.67 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 5:10 PM PDT

Temperature: 73.9 °F Dew Point: 59 °F Humidity: 60% Wind: North at - Pressure: 29.91 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 5:10 PM PDT

Temperature: 72.1 °F Dew Point: 59 °F Humidity: 62% Wind: North at - Pressure: 29.89 in Hourly Precipitation: - Heat Index: 76 °F Graphs

Location: Richmond / Stripling Weather Network, Portland, OR

Updated: 5:09 PM PDT

Temperature: 75.2 °F Dew Point: 57 °F Humidity: 54% Wind: Calm Pressure: 29.74 in Hourly Precipitation: - Heat Index: 78 °F Graphs

Location: Portland Rowing Club, Portland, OR

Updated: 5:14 PM PDT

Temperature: 73.3 °F Dew Point: 58 °F Humidity: 58% Wind: NNW at 1.0 mph Pressure: 29.83 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

Location: Southwest Portland, Portland, OR

Updated: 5:10 PM PDT

Temperature: 72.0 °F Dew Point: 58 °F Humidity: 62% Wind: North at - Pressure: 29.74 in Hourly Precipitation: 0.00 in Heat Index: 76 °F Graphs

Location: Waverleigh Heights, Portland, OR

Updated: 5:06 PM PDT

Temperature: 74.1 °F Dew Point: 58 °F Humidity: 57% Wind: Calm Pressure: 29.80 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: West Slope, Portland, OR

Updated: 5:02 PM PDT

Temperature: 72.7 °F Dew Point: 57 °F Humidity: 57% Wind: Calm Pressure: 29.53 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Richmond, Portland, OR

Updated: 5:10 PM PDT

Temperature: 74.3 °F Dew Point: 58 °F Humidity: 57% Wind: North at - Pressure: 29.88 in Hourly Precipitation: - Heat Index: 77 °F Graphs

Location: Northwest District, Portland, OR

Updated: 5:10 PM PDT

Temperature: 71.2 °F Dew Point: 62 °F Humidity: 72% Wind: North at - Pressure: 29.72 in Hourly Precipitation: - Heat Index: 74 °F Graphs

Location: Irvington, Portland, OR

Updated: 5:14 PM PDT

Temperature: 74.3 °F Dew Point: 58 °F Humidity: 58% Wind: West at 3.0 mph Pressure: 29.79 in Hourly Precipitation: 0.00 in Heat Index: 77 °F Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion



AREA FORECAST DISCUSSION
NATIONAL WEATHER SERVICE PORTLAND OR
239 PM PDT TUE 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.

&&

.SHORT TERM...LIGHT RAIN IS DISSIPATING AS IT MOVES SLOWLY INLAND
EARLY THIS AFTERNOON. THE RAIN WHICH DROPPED ABOUT 0.25 INCHES AT
ASTORIA THIS MORNING IS NOW VERY LIGHT AND DO NOT THINK IT WILL MAKE
IT INTO THE VALLEY. BEHIND IT ARE SOME LIGHT TO MODERATE SHOWERS
WHICH ARE A BIT MORE SUCCESSFULLY MOVING INLAND AND WILL LIKELY BE
THE BEST SHOT FOR ANY INLAND RAIN. CONTINUED TO DIAL BACK POPS IN THE
VALLEY THROUGH THIS EVENING. 

SHORTWAVES ROTATING AROUND AN UPPER LOW BEGIN TO ARRIVE TONIGHT AND
INTO WEDNESDAY...INCREASING RAIN CHANCES ACROSS THE LOCAL FORECAST
AREA. COMBO OF DAYTIME HEATING AND A DECENT SHORTWAVE WILL BRING A
SLIGHT THREAT OF THUNDER TO NORTHERN AREAS TOMORROW AFTERNOON WITH
SHOWERS ELSEWHERE. FREEZING LEVELS WILL BE DROPPING...BUT DO NOT
THINK IT WILL BE COLD ENOUGH TO GET SMALL HAIL WITH SHOWERS OR
THUNDERSTORMS. 

THURSDAY AND FRIDAY ARE LOOKING DRIER AS THE UPPER TROUGH DIVES SOUTH
OF THE AREA. REMOVED THUNDER MENTION THURSDAY DUE TO MOST OF THE
FORCING BEING EAST OF THE AREA BY AFTERNOON. THUNDER STILL LOOKS
POSSIBLE FRIDAY...BUT REALLY ONLY FOR THE CASCADES AND EVEN THEN
PROBABLY CLOSE TO THE CREST.

WITH UPPER TROUGH MOVING THROUGH...TEMPERATURES WILL BE A BIT COOLER
STARTING TOMORROW AND REMAIN BELOW NORMAL THROUGH AT LEAST THE END OF
THE WORKWEEK WITH HIGH TEMPERATURES AROUND 70 DEGREES INLAND AND 60
TO 65 ALONG THE COAST. INLAND LOW TEMPERATURES WILL ALSO BE
SIGNIFICANTLY MORE COMFORTABLE WITH LOWS WELL BELOW 60 DEGREES. BOWEN
 

.LONG TERM...FRIDAY NIGHT THROUGH TUESDAY. BETTER AGREEMENT IN THE 
FORECAST MODELS TODAY WITH RESPECT TO THE MOVEMENT OF THE UPPER 
TROUGH THROUGH THE REGION. EXPECT THAT IT WILL CONTINUE TO ROTATE 
THROUGH THE REGION AND EAST OF THE CASCADES BY LATE FRIDAY OR EARLY 
SATURDAY. EVEN THE ECMWF...WHICH HAS BEEN SLOWER TO ADVANCE THE 
TROUGH...ESTABLISHES MORE NORTHERLY FLOW ALOFT BY SATURDAY FOR 
INCREASINGLY IMPROVING CONDITIONS. SUNDAY WILL BE DRY AND 
WARMER...WITH MAXIMUM TEMPERATURES RETURNING TO AROUND SEASONAL 
NORMALS...OR NEAR 80 FOR THE WILLAMETTE VALLEY. A WEAKENING BOUNDARY 
MAY CLIP THE SW WASHINGTON ZONES MONDAY...BUT EXPECT ANY LIGHT 
PRECIPITATION TO REMAIN OFFSHORE. ANOTHER LOW PRESSURE SYSTEM MAY 
APPROACH THE REGION BY TUESDAY OR WEDNESDAY NEXT WEEK FOR ANOTHER 
ROUND OF PRECIPITATION AND COOLER TEMPERATURES. CULLEN

&&

.AVIATION...MOSTLY VFR CONDITIONS THIS AFTERNOON AND EVENING.
THE COAST MAY SEE BRIEF MVFR CIGS AND VSBYS DUE TO LIGHT RAIN OR
MIST THROUGH WED MORNING. INLAND SITES SHOULD NOT DROP LOWER THAN
A HIGH END MVFR AT WORST AND PROBABLY REMAIN VFR WITH CIGS AROUND
050. SHOWERS WILL BE MORE CONVECTIVE WED AFTERNOON WITH HEAVIER
SHOWERS RESULTING IN A BETTER CHANCE FOR MVFR CONDITIONS.

KPDX AND APPROACHES...VFR ALTHOUGH CIGS LOWER TO 035 AS A WEAK
COLD FRONT CROSSES THE FIELD 20-23Z. TJ

&&

.MARINE...HAVE NOT SEEN MUCH EVIDENCE OF GUSTY WINDS OR INCREASED
SEAS FOR THE INNER WATERS NORTH OF CASCADE HEAD EARLY THIS AFTERNOON
AND HAVE CANCELLED THE SMALL CRAFT ADVISORY FOR WINDS AND SEAS. A
WEAK TROUGH WILL MOVE OVER THE WATERS WED BEFORE SURFACE HIGH
PRESSURE BUILDS ON THURSDAY. LOW PRESSURE OVER NORTHERN CA WILL
RESULT IN NORTHERLY WINDS THU AFTERNOON THROUGH THE WEEKEND. THE
NORTH WINDS WILL INCREASE IN THE AFTERNOONS...ESPECIALLY SOUTH OF
LINCOLN CITY.

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 FROM BUOYS UPSTREAM OF THE OREGON
WATERS SUGGESTS THAT THE ENP GUIDANCE IS UNDER-FORECASTING THIS
SWELL 1 TO 2 FT. HAVE THEREFORE WENT A LITTLE ABOVE GUIDANCE FOR
THIS SWELL AND EXPECT 10 TO 11 FT SEAS IN THE WATERS LATE WED
AFTERNOON AND EVENING. TJ

&&

.PQR WATCHES/WARNINGS/ADVISORIES...
OR...NONE.
WA...NONE.
PZ...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.

&&

$$

INTERACT WITH US VIA SOCIAL MEDIA
WWW.FACEBOOK.COM/NWSPORTLAND
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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