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

Late January Extreme Cold; Watching for Another East Coast Storm Threat This Weekend

Well below normal temperatures will continue for the eastern half of the Lower 48 this week. Another blast of arctic air will spread from the Plains through the East/Southeast Friday into Saturday with more record lows expected even into Florida. Forecasts are being monitored for increasing potential of another significant winter storm to impact the eastern United States this coming weekend. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

27°F

-3°C

Humidity 97%
Wind Speed ESE 0 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 27 Jan 04:52 AM PST
Extended Forecast for

17 Miles WNW Illinois Valley OR

  • Today

    Today: Rain before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. Some of the storms could produce heavy rainfall. Snow level rising to 5600 feet in the afternoon. High near 47. Windy, with a south wind 13 to 18 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 48 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 47 °F

    Mostly Cloudy
    and Breezy
    then Heavy
    Rain and
    Windy

  • Tonight

    Tonight: Rain and snow. Some thunder is also possible. Snow level 4800 feet. Low around 38. Breezy, with a south southwest wind 24 to 28 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow and
    Breezy

  • Wednesday

    Wednesday: Rain likely, possibly mixed with snow. Snow level 4700 feet. Mostly cloudy, with a high near 43. Breezy, with a south southwest wind 20 to 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 43 °F

    Rain/Snow
    Likely and
    Breezy

  • Wednesday Night

    Wednesday Night: Rain. Snow level 5400 feet. Low around 43. South southeast wind around 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Rain

  • Thursday

    Thursday: A 50 percent chance of rain. Snow level 5900 feet. Mostly cloudy, with a high near 47. South southwest wind 16 to 18 mph.

    High: 47 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 30 percent chance of rain, mainly before 10pm. Snow level 5700 feet. Mostly cloudy, with a low around 45.

    Low: 45 °F

    Chance Rain

  • Friday

    Friday: A 30 percent chance of rain. Snow level 5600 feet. Mostly cloudy, with a high near 51. Breezy.

    High: 51 °F

    Chance Rain
    and Breezy

  • Friday Night

    Friday Night: A chance of rain, mainly before 10pm. Snow level 6000 feet. Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain

  • Saturday

    Saturday: A slight chance of rain. Snow level 5900 feet. Partly sunny, with a high near 55.

    High: 55 °F

    Slight Chance
    Rain

Detailed Forecast

Today
Rain before 4pm, then showers and possibly a thunderstorm, mainly after 4pm. Some of the storms could produce heavy rainfall. Snow level rising to 5600 feet in the afternoon. High near 47. Windy, with a south wind 13 to 18 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 48 mph. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Rain and snow. Some thunder is also possible. Snow level 4800 feet. Low around 38. Breezy, with a south southwest wind 24 to 28 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday
Rain likely, possibly mixed with snow. Snow level 4700 feet. Mostly cloudy, with a high near 43. Breezy, with a south southwest wind 20 to 22 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday Night
Rain. Snow level 5400 feet. Low around 43. South southeast wind around 20 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 50 percent chance of rain. Snow level 5900 feet. Mostly cloudy, with a high near 47. South southwest wind 16 to 18 mph.
Thursday Night
A 30 percent chance of rain, mainly before 10pm. Snow level 5700 feet. Mostly cloudy, with a low around 45.
Friday
A 30 percent chance of rain. Snow level 5600 feet. Mostly cloudy, with a high near 51. Breezy.
Friday Night
A chance of rain, mainly before 10pm. Snow level 6000 feet. Mostly cloudy, with a low around 44.
Saturday
A slight chance of rain. Snow level 5900 feet. Partly sunny, with a high near 55.
Saturday Night
A chance of rain, mainly after 10pm. Snow level 6100 feet. Mostly cloudy, with a low around 46.
Sunday
Rain likely. Snow level 5700 feet. Mostly cloudy, with a high near 49. Breezy.
Sunday Night
Rain and snow likely. Snow level 5400 feet. Mostly cloudy, with a low around 43.
Monday
A chance of rain and snow. Snow level 5500 feet. Mostly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles WNW Illinois Valley OR
 42.18°N 123.98°W (Elev. 4344 ft)
Last Update:
3:41 am PST Jan 27, 2026
Forecast Valid:
5am PST Jan 27, 2026-6pm PST Feb 2, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation