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Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday

Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >

Hazardous Weather Conditions

Current conditions at

Corvallis, Corvallis Municipal Airport (KCVO)

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

Clear

48°F

9°C

Humidity 70%
Wind Speed N 0 MPH
Barometer 30.39 in (1029.12 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Last update 12 Jan 05:00 PM PST
Extended Forecast for

Corvallis OR

Air Stagnation Advisory January 12, 05:19pm until January 16, 04:00am
Dense Fog Advisory January 12, 10:00pm until January 13, 11:00am
Click here for hazard details and duration
Air Stagnation Advisory
Dense Fog Advisory
  •  
    Air Stagnation Advisory January 12, 05:19pm until January 16, 04:00am

    NOW until 4:00am Fri

    Air Stagnation Advisory

  • Tonight

    Low: 35 °F

    Patchy Dense
    Fog

  • Tuesday

    Tuesday: Areas of dense fog before 11am. Otherwise, partly sunny, with a high near 51. Calm wind.

    High: 51 °F

    Areas Dense
    Fog then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Widespread dense fog, mainly after 5am. Otherwise, partly cloudy, with a low around 34. Calm wind.

    Low: 34 °F

    Dense Fog

  • Wednesday

    Wednesday: Widespread dense fog, mainly before 9am. Otherwise, mostly sunny, with a high near 49. Calm wind.

    High: 49 °F

    Dense Fog

  • Wednesday Night

    Wednesday Night: Patchy dense fog. Otherwise, partly cloudy, with a low around 36. Calm wind.

    Low: 36 °F

    Patchy Dense
    Fog

  • Thursday

    Thursday: Patchy dense fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 52.

    High: 52 °F

    Patchy Dense
    Fog then
    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 33.

    Low: 33 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

Detailed Forecast

Tonight
Patchy dense fog before 7pm, then patchy dense fog after 8pm. Otherwise, partly cloudy, with a low around 35. Calm wind.
Tuesday
Areas of dense fog before 11am. Otherwise, partly sunny, with a high near 51. Calm wind.
Tuesday Night
Widespread dense fog, mainly after 5am. Otherwise, partly cloudy, with a low around 34. Calm wind.
Wednesday
Widespread dense fog, mainly before 9am. Otherwise, mostly sunny, with a high near 49. Calm wind.
Wednesday Night
Patchy dense fog. Otherwise, partly cloudy, with a low around 36. Calm wind.
Thursday
Patchy dense fog before 10am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 52.
Thursday Night
Clear, with a low around 33.
Friday
Sunny, with a high near 52.
Friday Night
Mostly clear, with a low around 31.
Saturday
Sunny, with a high near 50.
Saturday Night
Mostly clear, with a low around 32.
Sunday
Sunny, with a high near 50.
Sunday Night
Partly cloudy, with a low around 32.
M.L.King Day
Partly sunny, with a high near 49.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Corvallis OR
 44.56°N 123.28°W (Elev. 223 ft)
Last Update:
4:41 pm PST Jan 12, 2026
Forecast Valid:
5pm PST Jan 12, 2026-6pm PST Jan 19, 2026
 
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Additional Resources

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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