Lake-effect Snow and Whiteout Conditions in the Great Lakes Region; Below-average Temperatures in the East

Heavy lake-effect and lake-enhanced snow will persist downwind of the Great Lakes and produce some whiteout conditions that could cause difficult travel conditions. A coastal low will produce moderate to heavy snow over parts of southern and eastern New England into the afternoon. Below average temperatures are expected across the eastern U.S., particularly with chilly morning temperatures. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

39°F

4°C

Humidity 89%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 18 Jan 05:52 PM PST
Extended Forecast for

8 Miles NW Cave Junction OR

Air Stagnation Advisory January 18, 06:03pm 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, 06:03pm until January 21, 04:00pm

    NOW until 4:00pm Wed

    Air Stagnation Advisory

  • Tonight

    Low: 46 °F

    Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 55. East wind around 6 mph.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 46. Southeast wind 3 to 5 mph.

    Low: 46 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 58. East southeast wind around 5 mph becoming calm  in the morning.

    High: 58 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 47. South southeast wind around 7 mph.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 51.

    High: 51 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 42.

    Low: 42 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 47.

    High: 47 °F

    Sunny

Detailed Forecast

Tonight
Clear, with a low around 46. Calm wind.
M.L.King Day
Sunny, with a high near 55. East wind around 6 mph.
Monday Night
Mostly clear, with a low around 46. Southeast wind 3 to 5 mph.
Tuesday
Mostly sunny, with a high near 58. East southeast wind around 5 mph becoming calm in the morning.
Tuesday Night
Mostly cloudy, with a low around 47. South southeast wind around 7 mph.
Wednesday
Partly sunny, with a high near 51.
Wednesday Night
Partly cloudy, with a low around 42.
Thursday
Sunny, with a high near 47.
Thursday Night
A slight chance of rain and snow after 4am. Snow level 5100 feet. Partly cloudy, with a low around 36.
Friday
A chance of rain and snow, mainly after 10am. Snow level 4700 feet. Mostly sunny, with a high near 44.
Friday Night
A chance of rain and snow. Snow level 4600 feet. Mostly cloudy, with a low around 35.
Saturday
A chance of rain and snow. Snow level 4400 feet. Partly sunny, with a high near 45.
Saturday Night
A chance of rain and snow. Snow level 4700 feet. Mostly cloudy, with a low around 36.
Sunday
A chance of rain and snow. Snow level 4600 feet rising to 5100 feet in the afternoon. Partly sunny, with a high near 45.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NW Cave Junction OR
 42.24°N 123.75°W (Elev. 4163 ft)
3:41 pm PST Jan 18, 2026
6pm PST Jan 18, 2026-6pm PST Jan 25, 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