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

Tracking Areas of Fire Weather, Severe Weather, and Winter Weather

Gusty winds and dry conditions will continue to bring fire weather concerns to the southern Plains through Friday. Severe thunderstorms including a few tornadoes, large hail and damaging wind gusts are expected across parts of the Midwest and lower Ohio Valley today. A Pacific storm will bring low elevation rain and thunderstorms across southern California and heavy snow through the Sierra. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

37°F

3°C

Humidity 88%
Wind Speed ESE 3 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 19 Feb 10:52 AM PST
Extended Forecast for

16 Miles SE Agness OR

  • Today

    Today: Rain and snow likely, becoming all rain after 1pm. Snow level 2100 feet. Partly sunny, with a high near 42. West wind around 8 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.

    High: 42 °F

    Rain/Snow
    Likely

  • Tonight

    Tonight: A chance of rain and snow before 10pm, then a slight chance of snow between 10pm and 11pm. Mostly cloudy, with a low around 26. Calm wind. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Chance
    Rain/Snow
    then Partly
    Cloudy

  • Friday

    Friday: A chance of snow before 10am, then a chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm. Snow level rising to 2400 feet in the afternoon. Partly sunny, with a high near 44. South wind 5 to 7 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.

    High: 44 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: A chance of rain before 10pm, then rain and snow likely. Snow level 2300 feet. Mostly cloudy, with a low around 35. Southeast wind 7 to 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow
    Likely

  • Saturday

    Saturday: Rain and snow likely before 10am, then a chance of rain. Snow level 2500 feet rising to 4000 feet in the afternoon. Mostly cloudy, with a high near 51. Southeast wind 11 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 51 °F

    Rain/Snow
    Likely then
    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly after 10pm. Snow level 4300 feet. Mostly cloudy, with a low around 38. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.

    Low: 38 °F

    Rain Likely

  • Sunday

    Sunday: Rain. High near 48. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    High: 48 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Cloudy, with a low around 45.

    Low: 45 °F

    Rain

  • Monday

    Monday: Rain. Cloudy, with a high near 51.

    High: 51 °F

    Rain

Detailed Forecast

Today
Rain and snow likely, becoming all rain after 1pm. Snow level 2100 feet. Partly sunny, with a high near 42. West wind around 8 mph. Chance of precipitation is 70%. Total daytime snow accumulation of less than one inch possible.
Tonight
A chance of rain and snow before 10pm, then a slight chance of snow between 10pm and 11pm. Mostly cloudy, with a low around 26. Calm wind. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Friday
A chance of snow before 10am, then a chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm. Snow level rising to 2400 feet in the afternoon. Partly sunny, with a high near 44. South wind 5 to 7 mph. Chance of precipitation is 50%. Little or no snow accumulation expected.
Friday Night
A chance of rain before 10pm, then rain and snow likely. Snow level 2300 feet. Mostly cloudy, with a low around 35. Southeast wind 7 to 10 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday
Rain and snow likely before 10am, then a chance of rain. Snow level 2500 feet rising to 4000 feet in the afternoon. Mostly cloudy, with a high near 51. Southeast wind 11 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday Night
Rain likely, mainly after 10pm. Snow level 4300 feet. Mostly cloudy, with a low around 38. Chance of precipitation is 70%. New precipitation amounts between a half and three quarters of an inch possible.
Sunday
Rain. High near 48. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Sunday Night
Rain. Cloudy, with a low around 45.
Monday
Rain. Cloudy, with a high near 51.
Monday Night
Rain. Cloudy, with a low around 44.
Tuesday
Rain. Cloudy, with a high near 52.
Tuesday Night
Rain. Snow level 4100 feet lowering to 3500 feet after midnight . Mostly cloudy, with a low around 41.
Wednesday
Rain likely. Snow level 3300 feet rising to 3800 feet in the afternoon. Mostly cloudy, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.38°N 123.82°W (Elev. 1316 ft)
Last Update:
9:52 am PST Feb 19, 2026
Forecast Valid:
11am PST Feb 19, 2026-6pm PST Feb 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation