High-Impact and Far-Reaching Winter Storm Continues; Cold Expands and Persists

A major winter storm will shift its impacts into the Northeast U.S. with heavy snow through tonight while over the Mid-Atlantic, sleet and freezing rain will diminish. Extremely cold air behind the storm will prolong dangerous travel and infrastructure impacts. Sub-zero low temperatures are expected nearly every morning from the Northern Plains through the Ohio Valley and into the Northeast. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

27°F

-3°C

Humidity 96%
Wind Speed WNW 0 MPH
Barometer NA
Dewpoint 26°F (-3°C)
Visibility NA
Last update 26 Jan 02:52 AM PST
Extended Forecast for

17 Miles SSE Agness OR

  • Overnight

    Overnight: Mostly cloudy, with a low around 41. South wind around 7 mph.

    Low: 41 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 50. South southwest wind around 8 mph.

    High: 50 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 43. South southeast wind around 8 mph.

    Low: 43 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain, mainly after 10am.  Snow level 4900 feet rising to 6000 feet in the afternoon. High near 51. Breezy, with a south wind 13 to 22 mph, with gusts as high as 33 mph.  Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 51 °F

    Rain and
    Breezy

  • Tuesday Night

    Tuesday Night: Rain.  Snow level 5400 feet. Low around 46. South wind 10 to 20 mph, with gusts as high as 29 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Rain

  • Wednesday

    Wednesday: A 40 percent chance of rain.  Snow level 5300 feet. Mostly cloudy, with a high near 50.

    High: 50 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: A 50 percent chance of rain.  Snow level 5500 feet. Mostly cloudy, with a low around 46.

    Low: 46 °F

    Chance Rain

  • Thursday

    Thursday: A chance of rain.  Mostly cloudy, with a high near 52.

    High: 52 °F

    Chance Rain

  • Thursday Night

    Thursday Night: A chance of rain.  Mostly cloudy, with a low around 48.

    Low: 48 °F

    Chance Rain

Detailed Forecast

Overnight
Mostly cloudy, with a low around 41. South wind around 7 mph.
Monday
Partly sunny, with a high near 50. South southwest wind around 8 mph.
Monday Night
Mostly cloudy, with a low around 43. South southeast wind around 8 mph.
Tuesday
Rain, mainly after 10am. Snow level 4900 feet rising to 6000 feet in the afternoon. High near 51. Breezy, with a south wind 13 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Snow level 5400 feet. Low around 46. South wind 10 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
A 40 percent chance of rain. Snow level 5300 feet. Mostly cloudy, with a high near 50.
Wednesday Night
A 50 percent chance of rain. Snow level 5500 feet. Mostly cloudy, with a low around 46.
Thursday
A chance of rain. Mostly cloudy, with a high near 52.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 48.
Friday
A chance of rain. Mostly cloudy, with a high near 54.
Friday Night
A chance of rain. Mostly cloudy, with a low around 47.
Saturday
A chance of rain. Mostly cloudy, with a high near 57.
Saturday Night
Rain likely. Mostly cloudy, with a low around 49.
Sunday
Rain likely. Mostly cloudy, with a high near 52.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSE Agness OR
 42.32°N 123.96°W (Elev. 2408 ft)
3:41 am PST Jan 26, 2026
3am PST Jan 26, 2026-6pm PST Feb 1, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database