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

26°F

-3°C

Humidity 97%
Wind Speed ENE 0 MPH
Barometer NA
Dewpoint 25°F (-4°C)
Visibility NA
Last update 27 Jan 07:52 AM PST
Extended Forecast for

9 Miles WNW Illinois Valley OR

  • Today

    Today: Rain likely, then showers and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. Snow level 4100 feet rising to 5600 feet in the afternoon. High near 49. South wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 49 °F

    Mostly Cloudy
    then Heavy
    Rain

  • Tonight

    Tonight: Rain likely before midnight, then a chance of rain and snow between midnight and 1am, then a chance of rain after 1am. Some thunder is also possible. Snow level 4800 feet. Mostly cloudy, with a low around 38. South southwest wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 38 °F

    Showers
    Likely then
    Chance
    Rain/Snow

  • Wednesday

    Wednesday: A 50 percent chance of rain. Snow level 4700 feet. Mostly cloudy, with a high near 45. South southwest wind around 14 mph, with gusts as high as 22 mph.

    High: 45 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Rain likely. Snow level 5400 feet. Mostly cloudy, with a low around 42. South southeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Rain Likely

  • Thursday

    Thursday: A 50 percent chance of rain, mainly before 4pm. Snow level 5900 feet. Mostly cloudy, with a high near 48. South wind around 11 mph.

    High: 48 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm. Snow level 5900 feet. Mostly cloudy, with a low around 43.

    Low: 43 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: A 30 percent chance of rain, mainly before 4pm. Snow level 5600 feet. Mostly cloudy, 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: A slight chance of rain after 4pm. Snow level 6000 feet. Partly sunny, with a high near 55.

    High: 55 °F

    Partly Sunny
    then Slight
    Chance Rain

Detailed Forecast

Today
Rain likely, then showers and possibly a thunderstorm after 4pm. Some of the storms could produce heavy rainfall. Snow level 4100 feet rising to 5600 feet in the afternoon. High near 49. South wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Rain likely before midnight, then a chance of rain and snow between midnight and 1am, then a chance of rain after 1am. Some thunder is also possible. Snow level 4800 feet. Mostly cloudy, with a low around 38. South southwest wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday
A 50 percent chance of rain. Snow level 4700 feet. Mostly cloudy, with a high near 45. South southwest wind around 14 mph, with gusts as high as 22 mph.
Wednesday Night
Rain likely. Snow level 5400 feet. Mostly cloudy, with a low around 42. South southeast wind around 11 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A 50 percent chance of rain, mainly before 4pm. Snow level 5900 feet. Mostly cloudy, with a high near 48. South wind around 11 mph.
Thursday Night
A 20 percent chance of rain before 10pm. Snow level 5900 feet. Mostly cloudy, with a low around 43.
Friday
A 30 percent chance of rain, mainly before 4pm. Snow level 5600 feet. Mostly cloudy, 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
A slight chance of rain after 4pm. Snow level 6000 feet. Partly sunny, with a high near 55.
Saturday Night
A chance of rain, mainly 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
A chance of rain. Snow level 5400 feet. Mostly cloudy, with a low around 41.
Monday
A slight chance of rain. Snow level 5500 feet. Mostly sunny, with a high near 51.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Illinois Valley OR
 42.15°N 123.85°W (Elev. 3356 ft)
Last Update:
7:37 am PST Jan 27, 2026
Forecast Valid:
8am PST Jan 27, 2026-6pm PST Feb 2, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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