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

Critical Fire Weather in the Plains; Severe Thunderstorms in the Upper Mississippi Valley and Great Lakes

Anomalously warm, dry and breezy conditions will bring elevated to critical fire weather conditions across portions of the Intermountain West into the central and southern Plains today. Strong to severe thunderstorms are possible across portions of the upper Mississippi River Valley to the Great Lakes tonight through the day Tuesday. Damaging gusts, hail, and heavy rainfall are likely. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

57°F

14°C

Humidity 83%
Wind Speed N 2 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 30 Mar 04:52 PM PDT
Extended Forecast for

11 Miles NNE Happy Camp CA

  • This Afternoon

    This Afternoon: A 50 percent chance of rain. Snow level 7300 feet. Mostly cloudy, with a steady temperature around 48. South southwest wind around 10 mph.

    High: 48 °F

    Chance Rain

  • Tonight

    Tonight: A chance of rain before 1am, then a slight chance of rain after 5am. Snow level 7100 feet lowering to 5800 feet after midnight . Mostly cloudy, with a low around 37. South southwest wind 6 to 9 mph. Chance of precipitation is 40%.

    Low: 37 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly after 3pm. Snow level 5500 feet rising to 6100 feet in the afternoon. Partly sunny, with a high near 45. South southwest wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 45 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain. Snow level 6100 feet lowering to 5100 feet after midnight . Low around 35. South southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 35 °F

    Rain

  • Wednesday

    Wednesday: Rain before 5pm, then snow showers, possibly mixed with rain. Some thunder is also possible. Snow level 5000 feet. High near 37. South southwest wind 17 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Rain then
    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow showers, possibly mixed with rain, becoming all snow after 8pm. Some thunder is also possible. Low around 30. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.

    Low: 30 °F

    Rain/Snow
    then Snow

  • Thursday

    Thursday: Snow before 5pm, then snow likely, possibly mixed with rain. High near 38. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.

    High: 38 °F

    Snow then
    Rain/Snow
    Likely

  • Thursday Night

    Thursday Night: A chance of rain and snow before 8pm, then a chance of snow between 8pm and 11pm. Partly cloudy, with a low around 26.

    Low: 26 °F

    Chance
    Rain/Snow
    then Mostly
    Clear

  • Friday

    Friday: Sunny, with a high near 51.

    High: 51 °F

    Sunny

Detailed Forecast

This Afternoon
A 50 percent chance of rain. Snow level 7300 feet. Mostly cloudy, with a steady temperature around 48. South southwest wind around 10 mph.
Tonight
A chance of rain before 1am, then a slight chance of rain after 5am. Snow level 7100 feet lowering to 5800 feet after midnight . Mostly cloudy, with a low around 37. South southwest wind 6 to 9 mph. Chance of precipitation is 40%.
Tuesday
Rain likely, mainly after 3pm. Snow level 5500 feet rising to 6100 feet in the afternoon. Partly sunny, with a high near 45. South southwest wind 8 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain. Snow level 6100 feet lowering to 5100 feet after midnight . Low around 35. South southwest wind around 14 mph, with gusts as high as 22 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain before 5pm, then snow showers, possibly mixed with rain. Some thunder is also possible. Snow level 5000 feet. High near 37. South southwest wind 17 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow showers, possibly mixed with rain, becoming all snow after 8pm. Some thunder is also possible. Low around 30. Chance of precipitation is 100%. New snow accumulation of 3 to 7 inches possible.
Thursday
Snow before 5pm, then snow likely, possibly mixed with rain. High near 38. Chance of precipitation is 90%. New snow accumulation of 1 to 2 inches possible.
Thursday Night
A chance of rain and snow before 8pm, then a chance of snow between 8pm and 11pm. Partly cloudy, with a low around 26.
Friday
Sunny, with a high near 51.
Friday Night
Mostly clear, with a low around 34.
Saturday
Sunny, with a high near 60.
Saturday Night
Partly cloudy, with a low around 42.
Sunday
Mostly sunny, with a high near 63.
Sunday Night
Partly cloudy, with a low around 44.
Monday
A slight chance of rain. Snow level 6800 feet rising to 7400 feet in the afternoon. Mostly sunny, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NNE Happy Camp CA
 41.94°N 123.25°W (Elev. 4360 ft)
Last Update:
4:41 pm PDT Mar 30, 2026
Forecast Valid:
5pm PDT Mar 30, 2026-6pm PDT Apr 6, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation