Hazardous Spring Weather Shifts to the Eastern and Northwest U.S. Wednesday

Isolated to scattered severe thunderstorms are expected Wednesday from the ArkLaTex and Lower Mississippi Valley northeastward through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat from east Texas into Upstate New York. A moderate atmospheric river will bring heavy snow and high winds to the Northwest U.S. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

33°F

1°C

Humidity 97%
Wind Speed NNE 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 10 Mar 11:52 PM PDT
Extended Forecast for

9 Miles WNW Illinois Valley OR

  • Overnight

    Overnight: A 10 percent chance of snow showers after 5am.  Snow level rising to 4000 feet. Partly cloudy, with a low around 32. West southwest wind around 5 mph.

    Low: 32 °F

    Slight Chance
    Snow Showers

  • Wednesday

    Wednesday: A slight chance of rain and snow showers before 8am, then a slight chance of rain showers.  Snow level 4600 feet rising to 5900 feet in the afternoon. Partly sunny, with a high near 48. West southwest wind 6 to 11 mph, with gusts as high as 26 mph.  Chance of precipitation is 20%.

    High: 48 °F

    Slight Chance
    Rain/Snow
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 40 percent chance of showers, mainly after 11pm.  Snow level 6200 feet rising to 7100 feet after midnight. Mostly cloudy, with a low around 38. Southwest wind 7 to 9 mph, with gusts as high as 21 mph.

    Low: 38 °F

    Chance
    Showers

  • Thursday

    Thursday: A 50 percent chance of showers.  Partly sunny, with a high near 51. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 51 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A 40 percent chance of showers.  Snow level 6700 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 40. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.

    Low: 40 °F

    Chance
    Showers

  • Friday

    Friday: A 40 percent chance of rain.  Snow level 5900 feet rising to 6900 feet in the afternoon. Partly sunny, with a high near 53.

    High: 53 °F

    Chance Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 11pm.  Mostly cloudy, with a low around 43. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain Likely

  • Saturday

    Saturday: Rain, mainly before 11am.  Mostly cloudy, with a high near 52.

    High: 52 °F

    Rain

  • Saturday Night

    Saturday Night: A slight chance of rain before 11pm.  Snow level 6200 feet lowering to 5200 feet after midnight . Partly cloudy, with a low around 41.

    Low: 41 °F

    Slight Chance
    Rain then
    Partly Cloudy

Detailed Forecast

Overnight
A 10 percent chance of snow showers after 5am. Snow level rising to 4000 feet. Partly cloudy, with a low around 32. West southwest wind around 5 mph.
Wednesday
A slight chance of rain and snow showers before 8am, then a slight chance of rain showers. Snow level 4600 feet rising to 5900 feet in the afternoon. Partly sunny, with a high near 48. West southwest wind 6 to 11 mph, with gusts as high as 26 mph. Chance of precipitation is 20%.
Wednesday Night
A 40 percent chance of showers, mainly after 11pm. Snow level 6200 feet rising to 7100 feet after midnight. Mostly cloudy, with a low around 38. Southwest wind 7 to 9 mph, with gusts as high as 21 mph.
Thursday
A 50 percent chance of showers. Partly sunny, with a high near 51. Southwest wind 7 to 10 mph, with gusts as high as 20 mph.
Thursday Night
A 40 percent chance of showers. Snow level 6700 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 40. West southwest wind 5 to 10 mph, with gusts as high as 20 mph.
Friday
A 40 percent chance of rain. Snow level 5900 feet rising to 6900 feet in the afternoon. Partly sunny, with a high near 53.
Friday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 43. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain, mainly before 11am. Mostly cloudy, with a high near 52.
Saturday Night
A slight chance of rain before 11pm. Snow level 6200 feet lowering to 5200 feet after midnight . Partly cloudy, with a low around 41.
Sunday
Mostly sunny, with a high near 62.
Sunday Night
Mostly cloudy, with a low around 46.
Monday
Mostly sunny, with a high near 67.
Monday Night
Mostly cloudy, with a low around 50.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 69.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Illinois Valley OR
 42.15°N 123.85°W (Elev. 3356 ft)
10:41 pm PDT Mar 10, 2026
12am PDT Mar 11, 2026-6pm PDT Mar 17, 2026
 
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Additional Resources

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