Severe Thunderstorms and Heavy Rainfall in the Ohio Valley and Great Lakes; Winter Weather in the Northern Tier

A slow moving front extending from the Great Lakes region into the Plains will bring snow, wintry mix, and ice accumulation north of the front from the Upper Midwest into New England, and severe weather and heavy rain south of the front. Scattered severe thunderstorms with damaging gusts, severe hail, and heavy rain are expected across parts of the Great Lakes/Midwest through tonight. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

NA

51°F

11°C

Humidity 86%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Last update 31 Mar 10:52 AM PDT
Extended Forecast for

16 Miles SE Agness OR

  • Today

    Today: A 40 percent chance of rain, mainly before 1pm.  Snow level 5500 feet. Partly sunny, with a high near 51. West southwest wind 10 to 14 mph, with gusts as high as 21 mph.

    High: 51 °F

    Chance Rain

  • Tonight

    Tonight: Rain, mainly after midnight.  Snow level 4800 feet lowering to 4100 feet after midnight . Low around 42. Southwest wind 10 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Chance Rain
    then Rain

  • Wednesday

    Wednesday: Rain.  Snow level 5300 feet lowering to 3900 feet in the afternoon . High near 43. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 43 °F

    Rain and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain and snow showers. Some thunder is also possible.  Snow level 3600 feet lowering to 2700 feet after midnight . Low around 37. Southwest wind 14 to 16 mph, with gusts as high as 24 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow

  • Thursday

    Thursday: Rain and snow, becoming all rain after 11am.  Snow level 2700 feet rising to 3700 feet in the afternoon. High near 45. West southwest wind 6 to 9 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 45 °F

    Rain/Snow
    then Rain
    Likely

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 11pm.  Snow level 3700 feet. Mostly clear, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain then
    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Clear, with a low around 42.

    Low: 42 °F

    Clear

  • Saturday

    Saturday: Sunny, with a high near 68.

    High: 68 °F

    Sunny

Detailed Forecast

Today
A 40 percent chance of rain, mainly before 1pm. Snow level 5500 feet. Partly sunny, with a high near 51. West southwest wind 10 to 14 mph, with gusts as high as 21 mph.
Tonight
Rain, mainly after midnight. Snow level 4800 feet lowering to 4100 feet after midnight . Low around 42. Southwest wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. Snow level 5300 feet lowering to 3900 feet in the afternoon . High near 43. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Wednesday Night
Rain and snow showers. Some thunder is also possible. Snow level 3600 feet lowering to 2700 feet after midnight . Low around 37. Southwest wind 14 to 16 mph, with gusts as high as 24 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Rain and snow, becoming all rain after 11am. Snow level 2700 feet rising to 3700 feet in the afternoon. High near 45. West southwest wind 6 to 9 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday Night
A 20 percent chance of rain before 11pm. Snow level 3700 feet. Mostly clear, with a low around 35.
Friday
Sunny, with a high near 60.
Friday Night
Clear, with a low around 42.
Saturday
Sunny, with a high near 68.
Saturday Night
Partly cloudy, with a low around 48.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 66.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.4°N 123.83°W (Elev. 2582 ft)
11:21 am PDT Mar 31, 2026
11am PDT Mar 31, 2026-6pm PDT Apr 6, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database