National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Winter Weather Brings Dangerous Travel Conditions Across the Northern U.S.

Heavy lake effect snow will persist downwind of the Great Lakes through early Saturday. Snow squalls with heavy snow and gusty winds will create dangerous travel in the Interior Northeast due to low visibility and slippery roads. A major winter storm will bring moderate to heavy, accumulating snow and gusty winds from the eastern Plains to the western Great Lakes today through Saturday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.

NA

37°F

3°C

Humidity 97%
Wind Speed SSE 0 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 28 Nov 09:52 PM PST
Extended Forecast for

17 Miles SSE Agness OR

  • Tonight

    Tonight: Partly cloudy, with a low around 41. East southeast wind around 5 mph.

    Low: 41 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 51. South southeast wind around 5 mph becoming calm in the morning.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 42. North northeast wind 3 to 5 mph.

    Low: 42 °F

    Slight Chance
    Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 49. North northeast wind around 6 mph.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 39. East northeast wind 9 to 13 mph, with gusts as high as 20 mph.

    Low: 39 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 52.

    High: 52 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of rain after 10am. Snow level 6200 feet lowering to 5300 feet in the afternoon . Mostly sunny, with a high near 49.

    High: 49 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 38.

    Low: 38 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 41. East southeast wind around 5 mph.
Saturday
Mostly sunny, with a high near 51. South southeast wind around 5 mph becoming calm in the morning.
Saturday Night
A 20 percent chance of rain after 10pm. Mostly cloudy, with a low around 42. North northeast wind 3 to 5 mph.
Sunday
Mostly sunny, with a high near 49. North northeast wind around 6 mph.
Sunday Night
Partly cloudy, with a low around 39. East northeast wind 9 to 13 mph, with gusts as high as 20 mph.
Monday
Mostly sunny, with a high near 52.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
A slight chance of rain after 10am. Snow level 6200 feet lowering to 5300 feet in the afternoon . Mostly sunny, with a high near 49.
Tuesday Night
Partly cloudy, with a low around 38.
Wednesday
Mostly sunny, with a high near 49.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Mostly sunny, with a high near 52.
Thursday Night
Partly cloudy, with a low around 42.
Friday
A slight chance of rain. Mostly sunny, with a high near 54.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSE Agness OR
 42.32°N 123.96°W (Elev. 2408 ft)
Last Update:
9:40 pm PST Nov 28, 2025
Forecast Valid:
10pm PST Nov 28, 2025-6pm PST Dec 5, 2025
 
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Additional Resources

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Chance of Precipitation