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

47°F

8°C

Humidity 64%
Wind Speed E 1 MPH
Barometer NA
Dewpoint 35°F (2°C)
Visibility NA
Last update 27 Jan 12:52 PM PST
Extended Forecast for

8 Miles WNW Illinois Valley OR

  • This Afternoon

    This Afternoon: Rain, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. Snow level 5500 feet. High near 50. Breezy, with a south southwest wind around 22 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 50 °F

    Showers and
    Breezy

  • Tonight

    Tonight: Rain and snow before 8pm, then a chance of rain. Some thunder is also possible. Snow level 4700 feet. Low around 39. South southwest wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 39 °F

    Rain/Snow
    then Chance
    Rain

  • Wednesday

    Wednesday: Rain likely, mainly after 4pm. Snow level 4700 feet. Mostly cloudy, with a high near 45. Southwest wind 9 to 11 mph. Chance of precipitation is 60%.

    High: 45 °F

    Rain Likely

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 10pm. Snow level 5400 feet. Mostly cloudy, with a low around 42. South southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.

    Low: 42 °F

    Rain Likely

  • Thursday

    Thursday: A 40 percent chance of rain, mainly before 4pm. Snow level 5900 feet. Mostly cloudy, with a high near 49. South wind around 7 mph.

    High: 49 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A slight chance of rain before 10pm, then a slight chance of rain after 4am. Snow level 6000 feet. Mostly cloudy, with a low around 43. Chance of precipitation is 20%.

    Low: 43 °F

    Slight Chance
    Rain

  • Friday

    Friday: A 30 percent chance of rain, mainly between 10am and 4pm. Snow level 5700 feet. Partly sunny, with a high near 52.

    High: 52 °F

    Chance Rain

  • Friday Night

    Friday Night: A slight chance of rain before 10pm. Snow level 6100 feet. Mostly cloudy, with a low around 42.

    Low: 42 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Saturday

    Saturday: Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Rain, mainly before 4pm, then showers and possibly a thunderstorm after 4pm. Snow level 5500 feet. High near 50. Breezy, with a south southwest wind around 22 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and snow before 8pm, then a chance of rain. Some thunder is also possible. Snow level 4700 feet. Low around 39. South southwest wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday
Rain likely, mainly after 4pm. Snow level 4700 feet. Mostly cloudy, with a high near 45. Southwest wind 9 to 11 mph. Chance of precipitation is 60%.
Wednesday Night
Rain likely, mainly before 10pm. Snow level 5400 feet. Mostly cloudy, with a low around 42. South southwest wind 8 to 11 mph, with gusts as high as 18 mph. Chance of precipitation is 60%.
Thursday
A 40 percent chance of rain, mainly before 4pm. Snow level 5900 feet. Mostly cloudy, with a high near 49. South wind around 7 mph.
Thursday Night
A slight chance of rain before 10pm, then a slight chance of rain after 4am. Snow level 6000 feet. Mostly cloudy, with a low around 43. Chance of precipitation is 20%.
Friday
A 30 percent chance of rain, mainly between 10am and 4pm. Snow level 5700 feet. Partly sunny, with a high near 52.
Friday Night
A slight chance of rain before 10pm. Snow level 6100 feet. Mostly cloudy, with a low around 42.
Saturday
Partly sunny, with a high near 55.
Saturday Night
A chance of rain after 10pm. Snow level 6200 feet. Mostly cloudy, with a low around 44.
Sunday
Rain likely. Snow level 5800 feet. Partly sunny, with a high near 49.
Sunday Night
Rain likely. Snow level 5400 feet. Mostly cloudy, with a low around 41.
Monday
A chance of rain. Snow level 5200 feet rising to 5700 feet in the afternoon. Mostly sunny, with a high near 51.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles WNW Illinois Valley OR
 42.14°N 123.81°W (Elev. 3209 ft)
Last Update:
1:06 pm PST Jan 27, 2026
Forecast Valid:
1pm PST Jan 27, 2026-6pm PST Feb 2, 2026
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation