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.

Overcast

51°F

11°C

Humidity 79%
Wind Speed NW 10 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 20 Mar 11:53 PM PDT
Extended Forecast for

Portland OR

  • Overnight

    Overnight: A 30 percent chance of rain before 4am. Snow level 5200 feet lowering to 2100 feet. Mostly cloudy, with a low around 40. Northwest wind around 6 mph.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: Sunny, with a high near 56. North northwest wind around 6 mph.

    High: 56 °F

    Sunny

  • Saturday Night

    Saturday Night: Areas of frost after 3am. 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 58. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 58 °F

    Areas Frost
    then Mostly
    Sunny

  • Sunday Night

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

    Low: 38 °F

    Partly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 57.

    High: 57 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A 40 percent chance of rain after 11pm. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain. Cloudy, with a high near 58.

    High: 58 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain, mainly before 11pm. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Rain

Detailed Forecast

Overnight
A 30 percent chance of rain before 4am. Snow level 5200 feet lowering to 2100 feet. Mostly cloudy, with a low around 40. Northwest wind around 6 mph.
Saturday
Sunny, with a high near 56. North northwest wind around 6 mph.
Saturday Night
Areas of frost after 3am. 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 58. Calm wind becoming north 5 to 7 mph in the afternoon.
Sunday Night
Partly cloudy, with a low around 38. North northwest wind 3 to 8 mph.
Monday
Mostly cloudy, with a high near 57.
Monday Night
A 40 percent chance of rain after 11pm. Mostly cloudy, with a low around 45.
Tuesday
Rain. Cloudy, with a high near 58.
Tuesday Night
Rain, mainly before 11pm. Mostly cloudy, with a low around 43.
Wednesday
Rain. Mostly cloudy, with a high near 56.
Wednesday Night
A chance of rain. Partly cloudy, with a low around 38.
Thursday
A slight chance of rain. Snow level 2000 feet rising to 2900 feet in the afternoon. Mostly sunny, with a high near 57.
Thursday Night
Mostly clear, with a low around 37.
Friday
Mostly sunny, with a high near 60.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland OR
 45.53°N 122.67°W (Elev. 200 ft)
Last Update:
11:41 pm PDT Mar 20, 2026
Forecast Valid:
12am PDT Mar 21, 2026-6pm PDT Mar 27, 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