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

80°F

27°C

Humidity 26%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Heat Index79°F (26°C)
Last update 16 Mar 05:52 PM PDT
Extended Forecast for

16 Miles SE Agness OR

  • Tonight

    Tonight: Clear, with a low around 51. West northwest wind around 5 mph becoming calm in the evening.

    Low: 51 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. Southwest wind 3 to 7 mph.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 77. Light south wind becoming southwest 5 to 9 mph in the afternoon.

    High: 77 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 53. West southwest wind 5 to 8 mph becoming light and variable in the evening.

    Low: 53 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 74.

    High: 74 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 52.

    Low: 52 °F

    Chance Rain

Detailed Forecast

Tonight
Clear, with a low around 51. West northwest wind around 5 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 78. Calm wind becoming west southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 50. Southwest wind 3 to 7 mph.
Wednesday
Sunny, with a high near 77. Light south wind becoming southwest 5 to 9 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 53. West southwest wind 5 to 8 mph becoming light and variable in the evening.
Thursday
Mostly sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 54.
Friday
Partly sunny, with a high near 74.
Friday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 52.
Saturday
A chance of rain, mainly before 11am. Partly sunny, with a high near 65.
Saturday Night
A slight chance of rain. Partly cloudy, with a low around 43.
Sunday
A slight chance of rain. Mostly sunny, with a high near 63.
Sunday Night
A slight chance of rain. Partly cloudy, with a low around 41.
Monday
A chance of rain. Snow level 4300 feet rising to 4800 feet in the afternoon. Partly sunny, with a high near 61.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.38°N 123.82°W (Elev. 1316 ft)
Last Update:
4:40 pm PDT Mar 16, 2026
Forecast Valid:
6pm PDT Mar 16, 2026-6pm PDT Mar 23, 2026
 
Forecast Discussion
 
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Additional Resources

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