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

Heat the Southwest; Fire Weather in the Central U.S.; Kona Low Impacting Hawaii

A rare March heat wave is ongoing with much above-normal temperatures over the Southwest U.S. through this weekend. Periods of critical fire weather will persist from the central Rockies to the central and southern Plains through the weekend as gusty winds and low relative humidity continue. A Kona low will continue to bring several rounds of moderate to heavy rainfall to Hawaii through Sunday. Read More >

Current conditions at

Portland, Portland International Airport (KPDX)

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

Clear

46°F

8°C

Humidity 60%
Wind Speed NNW 5 MPH
Barometer 30.38 in (1028.79 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 21 Mar 09:53 PM PDT
Extended Forecast for

Portland OR

  • Tonight

    Tonight: Areas of frost after 4am. Otherwise, mostly clear, with a low around 35. North northwest wind around 5 mph becoming calm in the evening.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Sunday

    Sunday: Areas of frost before 9am. Otherwise, mostly sunny, with a high near 59. Calm wind becoming north 5 to 8 mph in the afternoon.

    High: 59 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. North northwest wind 5 to 8 mph.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Increasing clouds, with a high near 58. Light north northwest wind.

    High: 58 °F

    Increasing
    Clouds

  • Monday Night

    Monday Night: A 40 percent chance of showers after 11pm. Cloudy, with a low around 46. Light and variable wind.

    Low: 46 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers. High near 56. Chance of precipitation is 100%.

    High: 56 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain, mainly before 11pm. Low around 43. Chance of precipitation is 80%.

    Low: 43 °F

    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Rain, mainly after 11am. Mostly cloudy, with a high near 56.

    High: 56 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm. Snow level 3300 feet lowering to 1900 feet after midnight . Partly cloudy, with a low around 37.

    Low: 37 °F

    Chance Rain
    then Partly
    Cloudy

Detailed Forecast

Tonight
Areas of frost after 4am. Otherwise, mostly clear, with a low around 35. North northwest wind around 5 mph becoming calm in the evening.
Sunday
Areas of frost before 9am. Otherwise, mostly sunny, with a high near 59. Calm wind becoming north 5 to 8 mph in the afternoon.
Sunday Night
Mostly cloudy, with a low around 38. North northwest wind 5 to 8 mph.
Monday
Increasing clouds, with a high near 58. Light north northwest wind.
Monday Night
A 40 percent chance of showers after 11pm. Cloudy, with a low around 46. Light and variable wind.
Tuesday
Showers. High near 56. Chance of precipitation is 100%.
Tuesday Night
Rain, mainly before 11pm. Low around 43. Chance of precipitation is 80%.
Wednesday
Rain, mainly after 11am. Mostly cloudy, with a high near 56.
Wednesday Night
A chance of rain before 11pm. Snow level 3300 feet lowering to 1900 feet after midnight . Partly cloudy, with a low around 37.
Thursday
A slight chance of rain after 11am. Snow level 1600 feet rising to 2700 feet in the afternoon. Mostly sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 61.
Friday Night
Mostly clear, with a low around 40.
Saturday
Mostly sunny, with a high near 64.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland OR
 45.52°N 122.7°W (Elev. 203 ft)
Last Update:
9:41 pm PDT Mar 21, 2026
Forecast Valid:
10pm PDT Mar 21, 2026-6pm PDT Mar 28, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation