Hazardous Spring Weather Shifts to the Eastern and Northwest U.S. Wednesday

Isolated to scattered severe thunderstorms are expected Wednesday from the ArkLaTex and Lower Mississippi Valley northeastward through the Ohio Valley and Mid-Atlantic. Thunderstorms may produce heavy to excessive rain that could pose a flooding threat from east Texas into Upstate New York. A moderate atmospheric river will bring heavy snow and high winds to the Northwest U.S. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

31°F

-1°C

Humidity 99%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 11 Mar 12:52 AM PDT
Extended Forecast for

17 Miles SSE Agness OR

  • Overnight

    Overnight: A 20 percent chance of showers after 2am.  Snow level 3400 feet rising to 4200 feet. Partly cloudy, with a low around 35. South wind around 5 mph.

    Low: 35 °F

    Slight Chance
    Showers

  • Wednesday

    Wednesday: A 30 percent chance of showers.  Snow level 4800 feet rising to 5900 feet in the afternoon. Partly sunny, with a high near 50. South southeast wind 6 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.

    High: 50 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 41. South southwest wind 8 to 10 mph.

    Low: 41 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely.  Mostly cloudy, with a high near 53. West southwest wind 7 to 9 mph.  Chance of precipitation is 60%.

    High: 53 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A 50 percent chance of showers.  Mostly cloudy, with a low around 44. Southwest wind 5 to 10 mph.

    Low: 44 °F

    Chance
    Showers

  • Friday

    Friday: Rain likely.  Mostly cloudy, with a high near 55. Chance of precipitation is 60%.

    High: 55 °F

    Rain Likely

  • Friday Night

    Friday Night: Rain, mainly after 11pm.  Low around 48. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 48 °F

    Rain

  • Saturday

    Saturday: Rain.  Mostly cloudy, with a high near 55.

    High: 55 °F

    Rain

  • Saturday Night

    Saturday Night: A slight chance of rain before 11pm.  Snow level 5900 feet lowering to 4900 feet after midnight . Partly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain then
    Partly Cloudy

Detailed Forecast

Overnight
A 20 percent chance of showers after 2am. Snow level 3400 feet rising to 4200 feet. Partly cloudy, with a low around 35. South wind around 5 mph.
Wednesday
A 30 percent chance of showers. Snow level 4800 feet rising to 5900 feet in the afternoon. Partly sunny, with a high near 50. South southeast wind 6 to 13 mph becoming southwest in the afternoon. Winds could gust as high as 21 mph.
Wednesday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 41. South southwest wind 8 to 10 mph.
Thursday
Showers likely. Mostly cloudy, with a high near 53. West southwest wind 7 to 9 mph. Chance of precipitation is 60%.
Thursday Night
A 50 percent chance of showers. Mostly cloudy, with a low around 44. Southwest wind 5 to 10 mph.
Friday
Rain likely. Mostly cloudy, with a high near 55. Chance of precipitation is 60%.
Friday Night
Rain, mainly after 11pm. Low around 48. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. Mostly cloudy, with a high near 55.
Saturday Night
A slight chance of rain before 11pm. Snow level 5900 feet lowering to 4900 feet after midnight . Partly cloudy, with a low around 44.
Sunday
Mostly sunny, with a high near 65.
Sunday Night
Mostly cloudy, with a low around 49.
Monday
Mostly sunny, with a high near 71.
Monday Night
A slight chance of rain. Mostly cloudy, with a low around 53.
Tuesday
A slight chance of rain. Mostly sunny, with a high near 72.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles SSE Agness OR
 42.32°N 123.96°W (Elev. 2408 ft)
10:41 pm PDT Mar 10, 2026
1am PDT Mar 11, 2026-6pm PDT Mar 17, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database