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

Corvallis, Corvallis Municipal Airport (KCVO)

Lat: 44.5°NLon: 123.28333°WElev: 246.0ft.

Rain

52°F

11°C

Humidity 93%
Wind Speed NNW 5 MPH
Barometer 30.09 in (1018.96 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 21 Mar 01:20 AM PDT
Extended Forecast for

3 Miles ENE Harlan OR

  • Overnight

    Overnight: A 30 percent chance of rain, mainly before 3am.  Snow level 4600 feet lowering to 3100 feet. Mostly cloudy, with a low around 37. Northwest wind around 6 mph.

    Low: 37 °F

    Chance Rain

  • Saturday

    Saturday: Areas of frost between 8am and 9am.  Otherwise, sunny, with a high near 52. North northeast wind around 6 mph.

    High: 52 °F

    Areas Frost
    then Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 3am.  Otherwise, mostly clear, with a low around 32. West northwest wind around 6 mph becoming calm  in the evening.

    Low: 32 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 9am.  Otherwise, mostly sunny, with a high near 55. Calm wind becoming north northeast 5 to 7 mph in the afternoon.

    High: 55 °F

    Frost then
    Partly Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 4am.  Otherwise, mostly cloudy, with a low around 35. North wind 5 to 7 mph becoming calm  after midnight.

    Low: 35 °F

    Mostly Cloudy
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 8am.  Otherwise, mostly cloudy, with a high near 55.

    High: 55 °F

    Areas Frost
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: A 50 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain.  Cloudy, with a high near 53.

    High: 53 °F

    Rain

  • Tuesday Night

    Tuesday Night: Rain.  Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain

Detailed Forecast

Overnight
A 30 percent chance of rain, mainly before 3am. Snow level 4600 feet lowering to 3100 feet. Mostly cloudy, with a low around 37. Northwest wind around 6 mph.
Saturday
Areas of frost between 8am and 9am. Otherwise, sunny, with a high near 52. North northeast wind around 6 mph.
Saturday Night
Widespread frost, mainly after 3am. Otherwise, mostly clear, with a low around 32. West northwest wind around 6 mph becoming calm in the evening.
Sunday
Widespread frost before 9am. Otherwise, mostly sunny, with a high near 55. Calm wind becoming north northeast 5 to 7 mph in the afternoon.
Sunday Night
Areas of frost after 4am. Otherwise, mostly cloudy, with a low around 35. North wind 5 to 7 mph becoming calm after midnight.
Monday
Areas of frost before 8am. Otherwise, mostly cloudy, with a high near 55.
Monday Night
A 50 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 43.
Tuesday
Rain. Cloudy, with a high near 53.
Tuesday Night
Rain. Mostly cloudy, with a low around 41.
Wednesday
Rain. Mostly cloudy, with a high near 52.
Wednesday Night
A chance of rain and snow. Snow level 3300 feet lowering to 2400 feet after midnight . Mostly cloudy, with a low around 35.
Thursday
A slight chance of rain. Snow level 2100 feet rising to 3000 feet in the afternoon. Mostly sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 34.
Friday
Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles ENE Harlan OR
 44.56°N 123.62°W (Elev. 1260 ft)
12:41 am PDT Mar 21, 2026
1am PDT Mar 21, 2026-6pm PDT Mar 27, 2026
 
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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