Snow Squalls May Impact New Year's Eve Travel from the Great Lakes to the Mid-Atlantic; Heavy Rain Returns to California

Lake effect snow will continue through Friday bringing significant snowfall to areas east to southeast of the Great Lakes. Snow squalls may impact New Year's Eve travel this evening and overnight across parts of the Great Lakes, Ohio Valley, Mid-Atlantic, and Upstate New York. Heavy rain will bring another flash flooding threat for southern California New Year's Eve into New Year's Day. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

32°F

0°C

Humidity 99%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 31 Dec 07:52 AM PST
Extended Forecast for

14 Miles S Murphy OR

Air Stagnation Advisory December 31, 08:40am until December 31, 04:00pm
Click here for hazard details and duration
Air Stagnation Advisory
  •  
    Air Stagnation Advisory December 31, 08:40am until December 31, 04:00pm

    NOW until 4:00pm Wed

    Air Stagnation Advisory

  • Today

    High: 50 °F

    Mostly Sunny
    then Slight
    Chance Rain

  • Tonight

    Tonight: Rain likely, mainly after 2am.  Cloudy, with a low around 43. South southwest wind 6 to 8 mph becoming east southeast after midnight.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain Likely

  • New Year's Day

    New Year's Day: Rain.  High near 47. South wind around 6 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Rain

  • Thursday Night

    Thursday Night: Rain, mainly before 10pm.  Low around 44. South wind around 10 mph.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 44 °F

    Rain then
    Chance Rain

  • Friday

    Friday: Rain, mainly after 10am.  Snow level 6600 feet. High near 49. South southeast wind 10 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 80%.

    High: 49 °F

    Rain

  • Friday Night

    Friday Night: Rain.  Snow level 5900 feet. Low around 40. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain

  • Saturday

    Saturday: Rain.  Snow level 5100 feet. High near 42. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 42 °F

    Rain

  • Saturday Night

    Saturday Night: Rain before 10pm, then rain likely, possibly mixed with snow.  Snow level 4700 feet. Mostly cloudy, with a low around 38.

    Low: 38 °F

    Rain/Snow

Detailed Forecast

Today
A 20 percent chance of rain after 3pm. Snow level 6100 feet rising to 7700 feet in the afternoon. Partly sunny, with a high near 50. South wind 5 to 7 mph.
Tonight
Rain likely, mainly after 2am. Cloudy, with a low around 43. South southwest wind 6 to 8 mph becoming east southeast after midnight. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
New Year's Day
Rain. High near 47. South wind around 6 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday Night
Rain, mainly before 10pm. Low around 44. South wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Rain, mainly after 10am. Snow level 6600 feet. High near 49. South southeast wind 10 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 80%.
Friday Night
Rain. Snow level 5900 feet. Low around 40. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Rain. Snow level 5100 feet. High near 42. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain before 10pm, then rain likely, possibly mixed with snow. Snow level 4700 feet. Mostly cloudy, with a low around 38.
Sunday
Rain, possibly mixed with snow. Snow level 4400 feet. Mostly cloudy, with a high near 40.
Sunday Night
Rain likely, possibly mixed with snow. Snow level 4400 feet. Mostly cloudy, with a low around 37.
Monday
Rain and snow likely. Snow level 4400 feet. Mostly cloudy, with a high near 41.
Monday Night
A chance of rain and snow. Snow level 4400 feet. Mostly cloudy, with a low around 35.
Tuesday
A slight chance of rain and snow. Snow level 4100 feet rising to 4800 feet in the afternoon. Mostly sunny, with a high near 43.
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles S Murphy OR
 42.15°N 123.34°W (Elev. 3570 ft)
6:22 am PST Dec 31, 2025
8am PST Dec 31, 2025-6pm PST Jan 6, 2026
 
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Additional Resources

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