National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Lake Effect Snow in the Lower Great Lakes; Unsettled Pattern in the Pacific Northwest

Lake-effect snow will continue downwind of Lakes Erie and Ontario through Friday. Lake Effect Snow Warnings have been issued. In the Western U.S., rain and higher elevation snow will continue over the Great Basin through Friday. A front will move over the Pacific Northwest this afternoon and produce light rain and higher elevation snow over the Cascades through Saturday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.

NA

58°F

14°C

Humidity 65%
Wind Speed ENE 1 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 12 Feb 11:52 AM PST
Extended Forecast for

3 Miles SE Illinois Valley OR

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 55. Calm wind.

    High: 55 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy dense fog after 10pm. Otherwise, partly cloudy, with a low around 30. South southwest wind around 5 mph becoming calm in the evening.

    Low: 30 °F

    Patchy Dense
    Fog

  • Friday

    Friday: Patchy fog before 11am. Otherwise, partly sunny, with a high near 54. Calm wind becoming southwest 5 to 7 mph in the afternoon.

    High: 54 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Friday Night

    Friday Night: A 30 percent chance of rain, mainly after 10pm. Snow level 4300 feet. Mostly cloudy, with a low around 32. South wind 3 to 5 mph.

    Low: 32 °F

    Chance Rain

  • Saturday

    Saturday: Rain. Snow level 4700 feet. High near 48. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Snow level 4700 feet. Low around 32. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 32 °F

    Rain

  • Sunday

    Sunday: Rain. Snow level 4400 feet. High near 50. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 50 °F

    Rain

  • Sunday Night

    Sunday Night: Rain likely, mainly before 10pm. Snow level 4400 feet. Mostly cloudy, with a low around 31.

    Low: 31 °F

    Rain Likely

  • Washington's Birthday

    Washington's Birthday: Rain, mainly after 10am. Snow level 3800 feet. Mostly cloudy, with a high near 46.

    High: 46 °F

    Rain

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 55. Calm wind.
Tonight
Patchy dense fog after 10pm. Otherwise, partly cloudy, with a low around 30. South southwest wind around 5 mph becoming calm in the evening.
Friday
Patchy fog before 11am. Otherwise, partly sunny, with a high near 54. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Friday Night
A 30 percent chance of rain, mainly after 10pm. Snow level 4300 feet. Mostly cloudy, with a low around 32. South wind 3 to 5 mph.
Saturday
Rain. Snow level 4700 feet. High near 48. Light and variable wind. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain. Snow level 4700 feet. Low around 32. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain. Snow level 4400 feet. High near 50. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain likely, mainly before 10pm. Snow level 4400 feet. Mostly cloudy, with a low around 31.
Washington's Birthday
Rain, mainly after 10am. Snow level 3800 feet. Mostly cloudy, with a high near 46.
Monday Night
Rain before 1am, then rain, possibly mixed with snow. Snow level 3300 feet lowering to 2600 feet after midnight . Cloudy, with a low around 27.
Tuesday
Rain, possibly mixed with snow. Snow level 2500 feet. Cloudy, with a high near 43.
Tuesday Night
Rain, possibly mixed with snow. Snow level 2200 feet. Mostly cloudy, with a low around 28.
Wednesday
Rain, possibly mixed with snow. Snow level 2100 feet rising to 2900 feet in the afternoon. Cloudy, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SE Illinois Valley OR
 42.08°N 123.65°W (Elev. 1644 ft)
Last Update:
11:37 am PST Feb 12, 2026
Forecast Valid:
12pm PST Feb 12, 2026-6pm PST Feb 18, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation