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.

Partly Cloudy

44°F

7°C

Humidity 65%
Wind Speed NW 6 MPH
Barometer 30.39 in (1029.12 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 21 Mar 10:53 PM PDT
Extended Forecast for

2 Miles E Lake Oswego OR

  • Tonight

    Tonight: Areas of frost after 3am. Otherwise, mostly clear, with a low around 34. Light and variable wind.

    Low: 34 °F

    Areas Frost

  • Sunday

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

    High: 59 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 38. North wind 3 to 8 mph.

    Low: 38 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 58. Light northwest wind.

    High: 58 °F

    Partly Sunny

  • Monday Night

    Monday Night: A 40 percent chance of showers after 11pm. Cloudy, with a low around 47. Light and variable wind.

    Low: 47 °F

    Chance
    Showers

  • Tuesday

    Tuesday: Showers. High near 57. Chance of precipitation is 100%.

    High: 57 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain, mainly before 11pm. Low around 43. Chance of precipitation is 90%.

    Low: 43 °F

    Rain then
    Chance Rain

  • Wednesday

    Wednesday: Rain. Mostly cloudy, with a high near 57.

    High: 57 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm. Snow level 3400 feet lowering to 2000 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 3am. Otherwise, mostly clear, with a low around 34. Light and variable wind.
Sunday
Areas of frost before 9am. Otherwise, mostly sunny, with a high near 59. Calm wind becoming north 5 to 9 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 38. North wind 3 to 8 mph.
Monday
Partly sunny, with a high near 58. Light northwest wind.
Monday Night
A 40 percent chance of showers after 11pm. Cloudy, with a low around 47. Light and variable wind.
Tuesday
Showers. High near 57. Chance of precipitation is 100%.
Tuesday Night
Rain, mainly before 11pm. Low around 43. Chance of precipitation is 90%.
Wednesday
Rain. Mostly cloudy, with a high near 57.
Wednesday Night
A chance of rain before 11pm. Snow level 3400 feet lowering to 2000 feet after midnight . Partly cloudy, with a low around 37.
Thursday
Mostly sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 40.
Saturday
Mostly sunny, with a high near 65.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
2 Miles E Lake Oswego OR
 45.42°N 122.67°W (Elev. 200 ft)
Last Update:
10:41 pm PDT Mar 21, 2026
Forecast Valid:
11pm PDT Mar 21, 2026-6pm PDT Mar 28, 2026
 
Forecast Discussion
 
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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