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

Strong to Severe Thunderstorms Continue Tonight in the East; Early Heat Wave in the West

Scattered strong to severe storms with damaging winds and potentially a tornado or two are expected tonight from the coastal Carolinas into the Mid-Atlantic states. An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

42°F

6°C

Humidity 100%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 17 Mar 12:52 AM PDT
Extended Forecast for

17 Miles SSE Agness OR

  • Overnight

    Overnight: Clear, with a low around 52. Light south wind.

    Low: 52 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 70. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 70 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. Southwest wind 5 to 8 mph becoming south southeast after midnight.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 70. South southeast wind 5 to 10 mph becoming southwest in the afternoon.

    High: 70 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 52. Southwest wind 5 to 9 mph becoming southeast after midnight.

    Low: 52 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 52.

    Low: 52 °F

    Partly Cloudy

  • Friday

    Friday: A slight chance of rain after 11am. Partly sunny, with a high near 68.

    High: 68 °F

    Slight Chance
    Rain

  • Friday Night

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

    Low: 50 °F

    Chance Rain

Detailed Forecast

Overnight
Clear, with a low around 52. Light south wind.
Tuesday
Sunny, with a high near 70. Calm wind becoming southwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 51. Southwest wind 5 to 8 mph becoming south southeast after midnight.
Wednesday
Sunny, with a high near 70. South southeast wind 5 to 10 mph becoming southwest in the afternoon.
Wednesday Night
Partly cloudy, with a low around 52. Southwest wind 5 to 9 mph becoming southeast after midnight.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 52.
Friday
A slight chance of rain after 11am. Partly sunny, with a high near 68.
Friday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 50.
Saturday
A chance of rain, mainly before 11am. Partly sunny, with a high near 60.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 41.
Sunday
A slight chance of rain. Snow level 5300 feet. Partly sunny, with a high near 57.
Sunday Night
A slight chance of rain and snow. Snow level 5700 feet lowering to 4700 feet after midnight . Mostly cloudy, with a low around 40.
Monday
A chance of rain and snow. Snow level 4500 feet. Partly sunny, with a high near 55.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSE Agness OR
 42.32°N 123.96°W (Elev. 2408 ft)
Last Update:
10:41 pm PDT Mar 16, 2026
Forecast Valid:
1am PDT Mar 17, 2026-6pm PDT Mar 23, 2026
 
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Additional Resources

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Chance of Precipitation