Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

51°F

11°C

Humidity 99%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 51°F (11°C)
Visibility NA
Last update 01 Mar 12:52 AM PST
Extended Forecast for

12 Miles W Happy Camp CA

  • Today

    Today: Rain likely before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain and possibly a thunderstorm after 4pm.  Snow level 7300 feet lowering to 6600 feet in the afternoon . High near 45. Southwest wind 5 to 7 mph.  Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 45 °F

    Chance Rain
    then Showers

  • Tonight

    Tonight: A 40 percent chance of rain after 2am.  Snow level 6100 feet. Mostly cloudy, with a low around 36. West wind around 5 mph becoming calm  in the evening.

    Low: 36 °F

    Chance Rain

  • Monday

    Monday: A 40 percent chance of rain.  Snow level 5800 feet rising to 6300 feet in the afternoon. Partly sunny, with a high near 45. Light and variable wind.

    High: 45 °F

    Chance Rain

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 37. South southwest wind 5 to 7 mph.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of rain.  Snow level 5800 feet. Partly sunny, with a high near 44. South southwest wind 9 to 11 mph.

    High: 44 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain before 1am, then rain, possibly mixed with snow.  Snow level 5600 feet. Low around 38. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain then
    Rain/Snow

  • Wednesday

    Wednesday: Rain, possibly mixed with snow, becoming all snow after 7am.  High near 39. Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 39 °F

    Rain/Snow
    then Snow

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 10pm.  Mostly cloudy, with a low around 32.

    Low: 32 °F

    Snow Likely

  • Thursday

    Thursday: A chance of snow, mainly before 10am.  Partly sunny, with a high near 43.

    High: 43 °F

    Chance Snow

Detailed Forecast

Today
Rain likely before 1pm, then showers and possibly a thunderstorm between 1pm and 4pm, then rain and possibly a thunderstorm after 4pm. Snow level 7300 feet lowering to 6600 feet in the afternoon . High near 45. Southwest wind 5 to 7 mph. Chance of precipitation is 90%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
A 40 percent chance of rain after 2am. Snow level 6100 feet. Mostly cloudy, with a low around 36. West wind around 5 mph becoming calm in the evening.
Monday
A 40 percent chance of rain. Snow level 5800 feet rising to 6300 feet in the afternoon. Partly sunny, with a high near 45. Light and variable wind.
Monday Night
Mostly cloudy, with a low around 37. South southwest wind 5 to 7 mph.
Tuesday
A 20 percent chance of rain. Snow level 5800 feet. Partly sunny, with a high near 44. South southwest wind 9 to 11 mph.
Tuesday Night
Rain before 1am, then rain, possibly mixed with snow. Snow level 5600 feet. Low around 38. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday
Rain, possibly mixed with snow, becoming all snow after 7am. High near 39. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday Night
Snow likely, mainly before 10pm. Mostly cloudy, with a low around 32.
Thursday
A chance of snow, mainly before 10am. Partly sunny, with a high near 43.
Thursday Night
A slight chance of snow. Partly cloudy, with a low around 35.
Friday
Mostly sunny, with a high near 47.
Friday Night
A slight chance of snow. Snow level 6200 feet. Mostly cloudy, with a low around 37.
Saturday
A slight chance of rain and snow. Snow level 6800 feet rising to 7900 feet in the afternoon. Mostly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles W Happy Camp CA
 41.79°N 123.59°W (Elev. 5000 ft)
4:36 am PST Mar 1, 2026
7am PST Mar 1, 2026-6pm PST Mar 7, 2026
 
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Additional Resources

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