Another Arctic Blast in the East; Eastern U.S. Winter Storm

A powerful Arctic blast will bring dangerously cold, record low temperatures to the upper Ohio Valley, Mid-Atlantic, Gulf Coast and Southeast U.S. this weekend. A rapidly deepening storm will produce widespread heavy snow and wind from the southern Appalachians across the Carolinas and southern Virginia into Sunday. Storm-force winds and coastal flooding will be possible along the East Coast. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

40°F

4°C

Humidity 97%
Wind Speed ESE 2 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 01 Feb 03:52 AM PST
Extended Forecast for

7 Miles SW Illinois Valley OR

  • Overnight

    Overnight: Rain likely.  Mostly cloudy, with a low around 41. Southwest wind 11 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 70%.

    Low: 41 °F

    Rain Likely

  • Sunday

    Sunday: Rain before 9am, then a chance of rain after 10am.  Snow level 6000 feet lowering to 5200 feet in the afternoon . High near 49. Southwest wind 8 to 13 mph, with gusts as high as 18 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 49 °F

    Rain then
    Chance Rain

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. West southwest wind around 5 mph becoming light and variable.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 56. Northeast wind around 6 mph.

    High: 56 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 39. North wind around 7 mph.

    Low: 39 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 62.

    High: 62 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

Detailed Forecast

Overnight
Rain likely. Mostly cloudy, with a low around 41. Southwest wind 11 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 70%.
Sunday
Rain before 9am, then a chance of rain after 10am. Snow level 6000 feet lowering to 5200 feet in the afternoon . High near 49. Southwest wind 8 to 13 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Mostly clear, with a low around 35. West southwest wind around 5 mph becoming light and variable.
Monday
Sunny, with a high near 56. Northeast wind around 6 mph.
Monday Night
Mostly clear, with a low around 39. North wind around 7 mph.
Tuesday
Sunny, with a high near 61.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Sunny, with a high near 62.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 41.
Friday
Sunny, with a high near 59.
Friday Night
Partly cloudy, with a low around 40.
Saturday
A slight chance of rain. Mostly sunny, with a high near 57.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SW Illinois Valley OR
 42.03°N 123.78°W (Elev. 2428 ft)
3:41 am PST Feb 1, 2026
4am PST Feb 1, 2026-6pm PST Feb 7, 2026
 
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