Portland, Oregon Weather Conditions

Your Weather

To update your location please enter your ZIP code, city, state, airport code or country in the field below. Weather by E-mail: Forecast storm alerts. Weather E-Mail Alert Sign Up »

Current Conditions

  • 59°
  • Mostly Cloudy
  • Wind: East 6 mph
  • Humidity: 93%
  • Visibility: 10.0 miles
  • Dew Point: 57°
  • Pressure: 29.88 in. +

Select a Section

Click a section below for more information.

Next 12 Hours

3  am
6  am
9  am
12  pm
3  pm
Overcast
Overcast
Mostly Cloudy
Mostly Cloudy
Chance of Rain
Chance of Rain
Chance of Rain
Chance of Rain
Partly Cloudy
Partly Cloudy
58°
58°
59°
66°
69°
Forecast data from the National Digital Forecast Database.

5 Day Forecast

  • Wednesday
  • Chance of Rain
  • High: 70 °
  • Low: 51 °
  • Chance of Rain
  • Thursday
  • Chance of Rain
  • High: 71 °
  • Low: 49 °
  • Chance of Rain
  • Friday
  • Partly Cloudy
  • High: 73 °
  • Low: 49 °
  • Partly Cloudy
  • Saturday
  • Clear
  • High: 75 °
  • Low: 50 °
  • Clear
  • Sunday
  • Overcast
  • High: 76 °
  • Low: 53 °
  • Overcast

Forecast for Portland, Oregon

Updated: 3:08 am PDT on September 2, 2015

  • Today

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

  • Tonight

    Mostly cloudy. Chance of showers and a slight chance of thunderstorms in the evening...then a chance of showers after midnight. Lows around 50. Southwest wind 5 to 10 mph. Chance of precipitation 40 percent. Rainfall amounts less than a tenth of an inch...except higher amounts possible in thunderstorms.

  • Thursday

    Mostly cloudy. Slight chance of showers in the morning... then a chance of showers and a slight chance of thunderstorms in the afternoon. Highs 65 to 70. West wind 5 to 10 mph. Chance of precipitation 50 percent. Rainfall amounts less than a tenth of an inch...except higher amounts possible in thunderstorms.

  • Thursday Night

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

  • Friday

    Partly sunny. A 20 percent chance of showers in the afternoon. Highs around 70. Northwest wind 5 to 10 mph.

  • Friday Night

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

  • Saturday

    Partly cloudy. Highs 70 to 75.

  • Saturday Night

    Partly cloudy. Lows around 50.

  • Sunday

    Partly sunny. Highs 70 to 75.

  • Sunday Night

    Mostly cloudy in the evening...then partly cloudy. Lows around 50.

  • Labor Day

    Partly cloudy. Highs 75 to 80.

  • Monday Night

    Partly cloudy. Lows 50 to 55.

  • Tuesday

    Partly sunny. 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: 3:25 AM PDT

Temperature: 57.9 °F Dew Point: 54 °F Humidity: 86% Wind: North at - Pressure: 29.95 in Hourly Precipitation: - Graphs

Location: Portland - West Hills, Portland, OR

Updated: 3:28 AM PDT

Temperature: 56.7 °F Dew Point: 53 °F Humidity: 86% Wind: South at 2.0 mph Pressure: 29.78 in Hourly Precipitation: 0.00 in Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:25 AM PDT

Temperature: 60.8 °F Dew Point: 52 °F Humidity: 73% Wind: North at - Pressure: 29.92 in Hourly Precipitation: - Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:25 AM PDT

Temperature: 57.9 °F Dew Point: 54 °F Humidity: 88% Wind: North at - Pressure: 29.94 in Hourly Precipitation: - Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:25 AM PDT

Temperature: 62.4 °F Dew Point: 53 °F Humidity: 70% Wind: North at - Pressure: 29.66 in Hourly Precipitation: - Graphs

Location: Hillsdale, Portland, OR

Updated: 3:25 AM PDT

Temperature: 57.6 °F Dew Point: 53 °F Humidity: 84% Wind: Calm Pressure: 29.95 in Hourly Precipitation: 0.00 in Graphs

Location: Hillsdale, Portland, OR

Updated: 3:18 AM PDT

Temperature: 57.0 °F Dew Point: 53 °F Humidity: 87% Wind: Calm Pressure: 29.65 in Hourly Precipitation: - Graphs

Location: Bridlemile, Portland, OR

Updated: 3:16 AM PDT

Temperature: 56.8 °F Dew Point: 53 °F Humidity: 88% Wind: Calm Pressure: 29.69 in Hourly Precipitation: - Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:25 AM PDT

Temperature: 61.0 °F Dew Point: 54 °F Humidity: 79% Wind: North at - Pressure: 29.88 in Hourly Precipitation: 0.00 in Graphs

Location: Multnomah Village North, Portland, OR

Updated: 3:13 AM PDT

Temperature: 57.6 °F Dew Point: 54 °F Humidity: 88% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

Location: N of Bridlemile School, Portland, OR

Updated: 3:27 AM PDT

Temperature: 57.8 °F Dew Point: 54 °F Humidity: 88% Wind: Calm Pressure: 29.87 in Hourly Precipitation: 0.00 in Graphs

Location: Hoyt Arboretum, Portland, OR

Updated: 3:19 AM PDT

Temperature: 55.5 °F Dew Point: 54 °F Humidity: 94% Wind: Calm Pressure: 29.77 in Hourly Precipitation: 0.00 in Graphs

Location: Westerly, NW Portland, Portland, OR

Updated: 3:27 AM PDT

Temperature: 58.7 °F Dew Point: 55 °F Humidity: 87% Wind: Calm Pressure: 29.83 in Hourly Precipitation: - Graphs

Location: Brooklyn, Portland, OR

Updated: 3:28 AM PDT

Temperature: 61.0 °F Dew Point: 55 °F Humidity: 81% Wind: Calm Pressure: 29.35 in Hourly Precipitation: 0.00 in Graphs

Location: Pearl District, Portland, OR

Updated: 3:25 AM PDT

Temperature: 62.6 °F Dew Point: 55 °F Humidity: 75% Wind: North at - Pressure: 29.70 in Hourly Precipitation: - Graphs

Location: Sylvan Highlands, Portland, OR

Updated: 3:28 AM PDT

Temperature: 55.0 °F Dew Point: 54 °F Humidity: 96% Wind: Calm Pressure: 29.56 in Hourly Precipitation: 0.00 in Graphs

Location: South Burlingame, Portland, OR

Updated: 3:28 AM PDT

Temperature: 59.8 °F Dew Point: 53 °F Humidity: 78% Wind: Calm Pressure: 29.51 in Hourly Precipitation: 1.79 in Graphs

Location: Pearl District, Portland, OR

Updated: 3:25 AM PDT

Temperature: 55.9 °F Dew Point: 41 °F Humidity: 56% Wind: North at - Pressure: 29.82 in Hourly Precipitation: - Graphs

Location: Buckman, Portland, OR

Updated: 3:25 AM PDT

Temperature: 60.6 °F Dew Point: 56 °F Humidity: 84% Wind: North at - Pressure: 29.73 in Hourly Precipitation: - Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:25 AM PDT

Temperature: 59.7 °F Dew Point: 53 °F Humidity: 77% Wind: North at - Pressure: 29.96 in Hourly Precipitation: - Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:25 AM PDT

Temperature: 58.1 °F Dew Point: 54 °F Humidity: 87% Wind: North at - Pressure: 29.94 in Hourly Precipitation: - Graphs

Location: Richmond / Stripling Weather Network, Portland, OR

Updated: 3:15 AM PDT

Temperature: 58.8 °F Dew Point: 57 °F Humidity: 93% Wind: South at 1.7 mph Pressure: 29.80 in Hourly Precipitation: - Graphs

Location: Portland Rowing Club, Portland, OR

Updated: 3:28 AM PDT

Temperature: 59.6 °F Dew Point: 57 °F Humidity: 91% Wind: Calm Pressure: 29.89 in Hourly Precipitation: 0.00 in Graphs

Location: Southwest Portland, Portland, OR

Updated: 3:25 AM PDT

Temperature: 59.5 °F Dew Point: 52 °F Humidity: 77% Wind: North at - Pressure: 29.79 in Hourly Precipitation: 0.00 in Graphs

Location: Waverleigh Heights, Portland, OR

Updated: 3:22 AM PDT

Temperature: 58.6 °F Dew Point: 57 °F Humidity: 95% Wind: Calm Pressure: 29.85 in Hourly Precipitation: - Graphs

Location: West Slope, Portland, OR

Updated: 3:22 AM PDT

Temperature: 58.1 °F Dew Point: 55 °F Humidity: 90% Wind: Calm Pressure: 29.57 in Hourly Precipitation: - Graphs

Location: Richmond, Portland, OR

Updated: 3:25 AM PDT

Temperature: 60.1 °F Dew Point: 56 °F Humidity: 85% Wind: North at - Pressure: 29.94 in Hourly Precipitation: - Graphs

Location: Northwest District, Portland, OR

Updated: 3:25 AM PDT

Temperature: 58.1 °F Dew Point: 56 °F Humidity: 91% Wind: North at - Pressure: 29.77 in Hourly Precipitation: - Graphs

Location: Irvington, Portland, OR

Updated: 3:28 AM PDT

Temperature: 59.4 °F Dew Point: 57 °F Humidity: 92% Wind: Calm Pressure: 29.84 in Hourly Precipitation: 0.00 in Graphs

Location: Sellwood / West Moreland, Portland, OR

Updated: 3:13 AM PDT

Temperature: 57.9 °F Dew Point: 57 °F Humidity: 96% Wind: Calm Pressure: 29.60 in Hourly Precipitation: - Graphs

MSN Maps of:

Temp: Dew Point: Humidity Wind Pressure Hr Precip -

NWS Forecaster Discussion




Area forecast discussion 
National Weather Service Portland or 
254 am PDT Wednesday Sep 2 2015 


Synopsis...multiple frontal boundaries will move eastward through 
southwest Washington and northwest Oregon today with showers at times 
over much of the area. The parent upper trough will be slowly sagging 
south and the cooling aloft will give a chance of thunder over the 
northern coastal waters today and over the north interior this 
afternoon and evening. Scattered showers will continue tonight and 
Thursday over the area...especially north...as a couple pieces of 
energy rotate around the low and onshore. Temperatures cool aloft a bit more 
on Thursday for another chance of thunder especially north. The low 
will drop south Thursday night and Friday as another batch of energy 
drops south on the back side of the low...moving onshore to our 
south. However...with the cool upper trough overhead and some 
sunshine expected to break through the clouds at times on Friday... 
this will give a chance of showers or possibly a chance of thunder 
especially over the higher terrain. The low will move off to the east 
this weekend for improving weather...though another system is 
possible early next week. 
&& 


Short term...an upper low remains centered along the b.C coast early 
this morning with a series of frontal boundaries around the area. The 
first moved onshore overnight and brought some decent rains to the 
northern interior sections. Infrared satellite imagery shows another 
diffuse boundary between Hoquiam and Astoria beneath west to east 
oriented shear vorticity and the upper jet. This boundary will be 
moving onshore early this morning into southwest Washington and 
northwest Oregon and move through the northern part of our forecast 
area this morning...dropping south through the Cascades through the 
afternoon. Have decided to bump up probability of precipitation with this feature more into 
the likely category with some local embedded categorical areas. 
Despite the shallow nature of these boundaries...they have been 
producing more quantitative precipitation forecast than the models have been indicating...and this 
could continue today. 


The models show that some cooler air aloft will accompany this second 
boundary today as the upper low slowly sags a bit south. This should 
give a chance of thunder to at least the northern part of our coastal 
waters...and from the Portland area northward in the interior. 


The models show another short wave swinging onshore this evening that 
should keep at least some scattered showers going across the north 
part of our forecast area tonight. There is another short wave that 
rotates onshore Thursday as well. As the low drifts south the air 
aloft will continue to cool...and model lifted indices and cape 
forecasts suggest that we have another chance of thunder Thursday 
especially across the north. 


The models continue to show energy dropping south off the coast along 
the west or back side of the low Thursday night and Friday and moving 
onshore to our south. Thus...there should be a minimum of showers 
Thursday night into Friday morning. However...this drags the upper 
low across our forecast area along with its cold pool aloft... which 
will be over the area Friday afternoon and evening. This together 
with more areas of sunshine due to more breaks in the clouds...will 
likely lead to some showers again and possibly a thunderstorms in the 
afternoon and evening...especially over the higher terrain. 


With upper trough moving through...temperatures will be a bit cooler 
the next few days and remain below normal through at least the end of 
the work week 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. 
Tolleson 


Long term...Friday night through Tuesday. The models say the upper 
low from Friday will be moving east on Saturday...though we may get 
clipped by a little energy on the back side of the low near the 
Cascade crest. Otherwise look for drier and warmer weather Saturday. 
The models do show a very weak system dropping through on Sunday 
possibly lingering into Monday in northwest flow aloft that might 
give a slight chance of showers to areas mainly north and west of 
Portland. Then it looks drier and warmer again during the middle part 
of next week. Tolleson 
&& 


Aviation...all taf locations currently VFR but with saturated lower 
levels...not taking much to see lower ceilings and visibility as light to 
moderate Showers Pass by. Coastal areas have dropped to IFR at times 
overnight while inland taf terminals generally stayed no lower than 
MVFR with ceilings at 015. Expect little change in overall conditions 
with showers continuing across the area...although areas north of a 
konp-kpdx line will see a thunder threat added in. Main threat should 
occur 18z-03z. 


Kpdx and approaches...generally VFR but with increasing chances of 
MVFR ceilings around 025-030 as showers develop mainly after 18z. There 
also will be a threat for thunderstorms mainly north and west of the 
terminal area mainly 18-03z. /Jbonk 
&& 


Marine...upper low pressure will linger over the area bringing 
increasing convective shower and possibly thunderstorm threats. The 
associated surface low will slide down the British Columbia coast before moving 
inland across Puget Sound sound this evening. Main impact is the generation 
of a fresh swell and probable 10 feet seas just barely reaching the 
outer waters today through early this evening. Current guidance 
appears to match fairly well and have issued a Small Craft Advisory 
for seas as a result. 


Surface pattern has high pressure returning to the waters as a 
surface thermal low develops along the northern California coast. Models 
have eased up on the strength of the pressure gradient but could 
still see some marginal Small Craft Advisory gusts for the central Oregon waters 
Friday night. /Jbonk 
&& 


Pqr watches/warnings/advisories... 
or...none. 
Washington...none. 
Pz...Small Craft Advisory for hazardous seas from 7 am this morning 
to 9 PM PDT this evening for waters from Cape Shoalwater Washington 
to Cascade Head or from 10 to 60 nm. 


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


Small Craft Advisory for rough Columbia River bar from 6 PM to 
10 PM PDT this evening. 


&& 


$$ 


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. 






National Weather Service Glossary of Abbreviations

Non-Expanded Version (with abbreviations)

Powered by the Weather Underground, Inc.