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

Heavy Snow in the Sierra Nevada; Heavy Rainfall in Texas Sunday

Heavy snow is expected in the Sierra Nevada mountain ranges into Saturday causing hazardous travel conditions. Winter Storm Warnings have been issued. Thunderstorms and moderate to heavy rainfall are expected across portions of eastern Texas into Louisiana on Sunday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

46°F

8°C

Humidity 100%
Wind Speed SSW 3 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 13 Nov 09:52 PM PST
Extended Forecast for

12 Miles SSE Agness OR

  • Tonight

    Tonight: Rain. Snow level 5400 feet. Steady temperature around 46. South wind 15 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain

  • Saturday

    Saturday: Rain, mainly before 9am. Snow level 5800 feet. Steady temperature around 46. Breezy, with a south wind 16 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 46 °F

    Rain then
    Slight Chance
    Rain and
    Breezy

  • Saturday Night

    Saturday Night: Rain, mainly after 8pm. Steady temperature around 49. Breezy, with a south wind 16 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.

    Low: 49 °F

    Rain and
    Breezy

  • Sunday

    Sunday: Rain. Snow level 5000 feet. High near 49. South southwest wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 49 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Snow level 4600 feet. Low around 40. South wind around 9 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Rain

  • Monday

    Monday: Rain, mainly before 4pm. Snow level 4300 feet. High near 43. Chance of precipitation is 90%.

    High: 43 °F

    Rain

  • Monday Night

    Monday Night: A 20 percent chance of rain before 10pm. Snow level 3900 feet. Partly cloudy, with a low around 35.

    Low: 35 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Tuesday

    Tuesday: Rain likely after 4pm. Snow level 3600 feet rising to 4200 feet in the afternoon. Partly sunny, with a high near 45.

    High: 45 °F

    Mostly Sunny
    then Rain
    Likely

  • Tuesday Night

    Tuesday Night: Rain before 4am, then rain and snow. Snow level 4500 feet. Cloudy, with a low around 37.

    Low: 37 °F

    Rain then
    Rain/Snow

Detailed Forecast

Tonight
Rain. Snow level 5400 feet. Steady temperature around 46. South wind 15 to 20 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Rain, mainly before 9am. Snow level 5800 feet. Steady temperature around 46. Breezy, with a south wind 16 to 22 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain, mainly after 8pm. Steady temperature around 49. Breezy, with a south wind 16 to 24 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New precipitation amounts between 1 and 2 inches possible.
Sunday
Rain. Snow level 5000 feet. High near 49. South southwest wind around 10 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Sunday Night
Rain. Snow level 4600 feet. Low around 40. South wind around 9 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain, mainly before 4pm. Snow level 4300 feet. High near 43. Chance of precipitation is 90%.
Monday Night
A 20 percent chance of rain before 10pm. Snow level 3900 feet. Partly cloudy, with a low around 35.
Tuesday
Rain likely after 4pm. Snow level 3600 feet rising to 4200 feet in the afternoon. Partly sunny, with a high near 45.
Tuesday Night
Rain before 4am, then rain and snow. Snow level 4500 feet. Cloudy, with a low around 37.
Wednesday
Rain and snow, becoming all rain after 10am. Snow level 3700 feet. Cloudy, with a high near 40.
Wednesday Night
Rain and snow likely. Snow level 3600 feet. Mostly cloudy, with a low around 35.
Thursday
A chance of rain and snow. Snow level 3300 feet rising to 3800 feet in the afternoon. Partly sunny, with a high near 42.
Thursday Night
Partly cloudy, with a low around 33.
Friday
Mostly sunny, with a high near 45.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles SSE Agness OR
 42.4°N 123.98°W (Elev. 2628 ft)
Last Update:
10:26 pm PST Nov 13, 2026
Forecast Valid:
11pm PST Nov 13, 2026-6pm PST Nov 20, 2026
 
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Additional Resources

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High Temperature

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Chance of Precipitation