National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Critical Fire Weather in the Plains; Severe Thunderstorms in the Upper Mississippi Valley and Great Lakes

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the central and southern Plains today. Strong to severe thunderstorms are possible across portions of the upper Mississippi River Valley to the Great Lakes tonight through the day Tuesday. Damaging gusts, hail, and heavy rainfall are likely. Read More >

Current conditions at

Portland, Portland International Airport (KPDX)

Lat: 45.59578°NLon: 122.60917°WElev: 20.0ft.

Clear

37°F

3°C

Humidity 86%
Wind Speed NW 3 MPH
Barometer 30.2 in (1022.69 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 30 Mar 08:00 AM PDT
Extended Forecast for

Portland OR

  • Today

    Today: Areas of frost before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 58. Calm wind becoming north 5 to 8 mph in the morning.

    High: 58 °F

    Areas Frost
    then Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 39. North wind 3 to 7 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 57. Light and variable wind becoming south southeast around 6 mph in the afternoon.

    High: 57 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A 50 percent chance of rain after 11pm. Mostly cloudy, with a low around 44. South wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.

    Low: 44 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain. High near 53. South wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 53 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain. Low around 40. Chance of precipitation is 100%.

    Low: 40 °F

    Rain

  • Thursday

    Thursday: Rain. High near 56. Chance of precipitation is 80%.

    High: 56 °F

    Rain

  • Thursday Night

    Thursday Night: A slight chance of rain before 11pm. Partly cloudy, with a low around 39.

    Low: 39 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 62.

    High: 62 °F

    Mostly Sunny

Detailed Forecast

Today
Areas of frost before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 58. Calm wind becoming north 5 to 8 mph in the morning.
Tonight
Increasing clouds, with a low around 39. North wind 3 to 7 mph.
Tuesday
Mostly cloudy, with a high near 57. Light and variable wind becoming south southeast around 6 mph in the afternoon.
Tuesday Night
A 50 percent chance of rain after 11pm. Mostly cloudy, with a low around 44. South wind around 6 mph. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Rain. High near 53. South wind 6 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
Rain. Low around 40. Chance of precipitation is 100%.
Thursday
Rain. High near 56. Chance of precipitation is 80%.
Thursday Night
A slight chance of rain before 11pm. Partly cloudy, with a low around 39.
Friday
Mostly sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 41.
Saturday
Mostly sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 43.
Sunday
Partly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland OR
 45.51°N 122.66°W (Elev. 200 ft)
Last Update:
7:41 am PDT Mar 30, 2026
Forecast Valid:
8am PDT Mar 30, 2026-6pm PDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation