Storm Impacting the Southwest U.S.; Above Normal Temperatures Further East

A storm system will shift across the southwest U.S. through Thursday with widespread showers and isolated thunderstorms. Isolated flooding is possible. High-elevation snow is also expected in parts of Nevada and the southern Sierra Nevada range. East of this storm, above average temperatures will challenge or break daily record high temperatures this week in the southern Plains and southeast U.S. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

52°F

11°C

Humidity 70%
Wind Speed NE 5 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 18 Nov 01:52 PM PST
Extended Forecast for

11 Miles ESE Illinois Valley OR

  • This Afternoon

    This Afternoon: Mostly sunny, with a steady temperature around 36. Calm wind.

    High: 36 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a temperature rising to around 39 by 4am. Southeast wind around 6 mph.

    Low: 35 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 30 percent chance of rain after 4pm.  Snow level 6100 feet. Mostly sunny, with a steady temperature around 40. South southeast wind around 9 mph.

    High: 40 °F

    Sunny then
    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain before 1am, then snow.  Snow level 5900 feet lowering to 5200 feet after midnight . Low around 35. Southwest wind 5 to 11 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain then
    Rain/Snow

  • Thursday

    Thursday: Snow likely before 1pm, then a chance of rain and snow.  Partly sunny, with a high near 37. Calm wind becoming north around 5 mph in the afternoon.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 37 °F

    Snow Showers
    Likely then
    Chance
    Rain/Snow

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 44.

    High: 44 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a steady temperature around 36. Calm wind.
Tonight
Mostly clear, with a temperature rising to around 39 by 4am. Southeast wind around 6 mph.
Wednesday
A 30 percent chance of rain after 4pm. Snow level 6100 feet. Mostly sunny, with a steady temperature around 40. South southeast wind around 9 mph.
Wednesday Night
Rain before 1am, then snow. Snow level 5900 feet lowering to 5200 feet after midnight . Low around 35. Southwest wind 5 to 11 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Thursday
Snow likely before 1pm, then a chance of rain and snow. Partly sunny, with a high near 37. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 70%. Little or no snow accumulation expected.
Thursday Night
Mostly clear, with a low around 34.
Friday
Sunny, with a high near 44.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 48.
Saturday Night
Mostly clear, with a low around 39.
Sunday
Mostly sunny, with a high near 47.
Sunday Night
A slight chance of rain. Snow level 6700 feet. Partly cloudy, with a low around 38.
Monday
A chance of showers. Snow level 5700 feet. Partly sunny, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles ESE Illinois Valley OR
 42.03°N 123.48°W (Elev. 5197 ft)
2:18 pm PST Nov 18, 2025
2pm PST Nov 18, 2025-6pm PST Nov 24, 2025
 
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Additional Resources

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