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

Tracking Winter Weather and Frigid Temperatures This Weekend

Another clipper will drop into the Northern Plains and Upper Midwest into Sunday with snow and gusty winds contributing to some areas of blizzard conditions and snow squalls. Impactful snowfall will occur up and down the East Coast Sunday extending from the western Florida Panhandle to Maine. Read More >

Hazardous Weather Conditions

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

27°F

-3°C

Humidity 98%
Wind Speed SW 0 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Last update 18 Jan 12:52 AM PST
Extended Forecast for

14 Miles S Murphy OR

Air Stagnation Advisory January 18, 01:34am until January 20, 10:00am
Freezing Fog Advisory until January 18, 10:00am
Click here for hazard details and duration
Air Stagnation Advisory
Freezing Fog Advisory
  •  
    Air Stagnation Advisory January 18, 01:34am until January 20, 10:00am
    Freezing Fog Advisory until January 18, 10:00am

    NOW: Multiple hazards in effect

    Click HERE for Details

  • Overnight

    Low: 50 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 55. South southwest wind around 5 mph becoming calm in the morning.

    High: 55 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 48. Southeast wind 3 to 6 mph.

    Low: 48 °F

    Clear

  • M.L.King Day

    M.L.King Day: Sunny, with a high near 57. East northeast wind 3 to 5 mph.

    High: 57 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. East southeast wind around 7 mph.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 57.

    High: 57 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 47.

    Low: 47 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

Overnight
Partly cloudy, with a low around 50. South wind around 6 mph.
Sunday
Mostly sunny, with a high near 55. South southwest wind around 5 mph becoming calm in the morning.
Sunday Night
Clear, with a low around 48. Southeast wind 3 to 6 mph.
M.L.King Day
Sunny, with a high near 57. East northeast wind 3 to 5 mph.
Monday Night
Mostly clear, with a low around 47. East southeast wind around 7 mph.
Tuesday
Sunny, with a high near 57.
Tuesday Night
Partly cloudy, with a low around 47.
Wednesday
Mostly sunny, with a high near 53.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Sunny, with a high near 51.
Thursday Night
Mostly clear, with a low around 36.
Friday
A slight chance of rain and snow. Snow level 4300 feet rising to 4800 feet in the afternoon. Mostly sunny, with a high near 44.
Friday Night
A chance of rain and snow. Snow level 4600 feet lowering to 3900 feet after midnight . Partly cloudy, with a low around 34.
Saturday
A chance of rain and snow. Snow level 3600 feet. Partly sunny, with a high near 44.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles S Murphy OR
 42.15°N 123.34°W (Elev. 3570 ft)
Last Update:
12:41 am PST Jan 18, 2026
Forecast Valid:
1am PST Jan 18, 2026-6pm PST Jan 24, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation