Snow May Produce Poor Travel Conditions in the North-Central U.S. and East Coast

A strong cold front sweeping across the Northern Plains may bring snow showers and snow squalls from eastern Montana to north-central Nebraska, with blizzard conditions possible in eastern North Dakota and northwestern Montana. Heavy snow is expected to persist downwind of the Great Lakes. Snow showers will spread up the East Coast across the Mid-Atlantic and Northeast coasts. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

46°F

8°C

Humidity 77%
Wind Speed NE 1 MPH
Barometer NA
Dewpoint 39°F (4°C)
Visibility NA
Last update 18 Jan 12:52 PM PST
Extended Forecast for

17 Miles SSE Agness OR

Air Stagnation Advisory January 18, 01:11pm until January 21, 04:00pm
Freezing Fog Advisory January 18, 08:00pm until January 19, 12:00pm
Click here for hazard details and duration
Air Stagnation Advisory
Freezing Fog Advisory
  •  
    Air Stagnation Advisory January 18, 01:11pm until January 21, 04:00pm

    NOW until 4:00pm Wed

    Air Stagnation Advisory

  • This Afternoon

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 51. East wind 5 to 7 mph.

    Low: 51 °F

    Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 62. East northeast wind 5 to 7 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. East wind around 9 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 62. East wind 5 to 8 mph becoming light and variable  in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

Detailed Forecast

This Afternoon
Sunny, with a high near 61. Light and variable wind.
Tonight
Clear, with a low around 51. East wind 5 to 7 mph.
M.L.King Day
Sunny, with a high near 62. East northeast wind 5 to 7 mph.
Monday Night
Mostly clear, with a low around 51. East wind around 9 mph.
Tuesday
Mostly sunny, with a high near 62. East wind 5 to 8 mph becoming light and variable in the afternoon.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Partly sunny, with a high near 58.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 50.
Thursday Night
A slight chance of rain after 10pm. Snow level 5000 feet. Partly cloudy, with a low around 37.
Friday
A chance of rain. Snow level 4600 feet. Partly sunny, with a high near 49.
Friday Night
A chance of rain. Snow level 4400 feet. Mostly cloudy, with a low around 39.
Saturday
A chance of rain and snow. Snow level 4200 feet. Partly sunny, with a high near 48.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSE Agness OR
 42.32°N 123.96°W (Elev. 2408 ft)
12:41 pm PST Jan 18, 2026
1pm PST Jan 18, 2026-6pm PST Jan 24, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database