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

9 Miles WNW Illinois Valley OR

  • This Afternoon

    This Afternoon: Showers and possibly a thunderstorm.  High near 48. Southwest wind around 9 mph.  Chance of precipitation is 80%.

    High: 48 °F

    Showers

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 7pm, then showers likely.  Snow level 6200 feet. Low around 41. Southwest wind 3 to 6 mph.  Chance of precipitation is 80%.

    Low: 41 °F

    Showers

  • Monday

    Monday: A chance of showers before 10am, then a chance of rain after 4pm.  Snow level 5900 feet rising to 6400 feet in the afternoon. Partly sunny, with a high near 49. Southwest wind around 5 mph becoming calm.  Chance of precipitation is 40%.

    High: 49 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A 40 percent chance of rain, mainly after 4am.  Snow level 6200 feet. Mostly cloudy, with a low around 40. Light and variable wind becoming southwest around 6 mph after midnight.

    Low: 40 °F

    Chance Rain

  • Tuesday

    Tuesday: Rain likely, mainly between 10am and 4pm.  Snow level 5500 feet. Mostly cloudy, with a high near 46. Southwest wind 7 to 9 mph.  Chance of precipitation is 60%.

    High: 46 °F

    Rain Likely

  • Tuesday Night

    Tuesday Night: Rain, mainly between 10pm and 4am, then showers and possibly a thunderstorm after 4am.  Snow level 5400 feet. Low around 39. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 39 °F

    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm before 7am, then rain after 7am.  Snow level 4300 feet. High near 41. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.

    High: 41 °F

    Showers

  • Wednesday Night

    Wednesday Night: Rain, mainly before 10pm.  Snow level 3900 feet. Mostly cloudy, with a low around 35.

    Low: 35 °F

    Rain

  • Thursday

    Thursday: A chance of snow before 10am, then a chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm.  Snow level rising to 4200 feet in the afternoon. Partly sunny, with a high near 45.

    High: 45 °F

    Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Showers and possibly a thunderstorm. High near 48. Southwest wind around 9 mph. Chance of precipitation is 80%.
Tonight
Showers and possibly a thunderstorm before 7pm, then showers likely. Snow level 6200 feet. Low around 41. Southwest wind 3 to 6 mph. Chance of precipitation is 80%.
Monday
A chance of showers before 10am, then a chance of rain after 4pm. Snow level 5900 feet rising to 6400 feet in the afternoon. Partly sunny, with a high near 49. Southwest wind around 5 mph becoming calm. Chance of precipitation is 40%.
Monday Night
A 40 percent chance of rain, mainly after 4am. Snow level 6200 feet. Mostly cloudy, with a low around 40. Light and variable wind becoming southwest around 6 mph after midnight.
Tuesday
Rain likely, mainly between 10am and 4pm. Snow level 5500 feet. Mostly cloudy, with a high near 46. Southwest wind 7 to 9 mph. Chance of precipitation is 60%.
Tuesday Night
Rain, mainly between 10pm and 4am, then showers and possibly a thunderstorm after 4am. Snow level 5400 feet. Low around 39. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Wednesday
Showers and possibly a thunderstorm before 7am, then rain after 7am. Snow level 4300 feet. High near 41. Chance of precipitation is 100%. New precipitation amounts between a half and three quarters of an inch possible.
Wednesday Night
Rain, mainly before 10pm. Snow level 3900 feet. Mostly cloudy, with a low around 35.
Thursday
A chance of snow before 10am, then a chance of rain and snow between 10am and 1pm, then a chance of rain after 1pm. Snow level rising to 4200 feet in the afternoon. Partly sunny, with a high near 45.
Thursday Night
A chance of rain. Snow level 4900 feet. Mostly cloudy, with a low around 37.
Friday
A chance of rain. Snow level 5100 feet rising to 6000 feet in the afternoon. Mostly sunny, with a high near 51.
Friday Night
A slight chance of rain. Partly cloudy, with a low around 41.
Saturday
A slight chance of rain. Partly sunny, with a high near 57.
Saturday Night
A chance of rain. Partly cloudy, with a low around 43.
Sunday
A slight chance of rain. Snow level 6000 feet. Partly sunny, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Illinois Valley OR
 42.15°N 123.85°W (Elev. 3356 ft)
3:41 pm PST Mar 1, 2026
3pm PST Mar 1, 2026-6pm PDT Mar 8, 2026
 
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Additional Resources

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