Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

43°F

6°C

Humidity 92%
Wind Speed NNW 1 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 19 Apr 04:52 AM PDT
Extended Forecast for

9 Miles WNW Illinois Valley OR

  • Today

    Today: A 30 percent chance of rain after 5pm.  Snow level 6100 feet rising to 7600 feet in the afternoon. Mostly cloudy, with a high near 55. Southwest wind 7 to 10 mph.

    High: 55 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tonight

    Tonight: A 40 percent chance of rain after 3am.  Snow level 7700 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 44. Southwest wind around 6 mph becoming light and variable  in the evening.

    Low: 44 °F

    Chance Rain

  • Monday

    Monday: Rain.  Snow level 5700 feet rising to 6400 feet. High near 47. East southeast wind 5 to 10 mph becoming south southwest in the afternoon.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 47 °F

    Rain

  • Monday Night

    Monday Night: Rain.  Snow level 6100 feet lowering to 5300 feet after midnight . Low around 41. West wind 5 to 11 mph.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 41 °F

    Rain

  • Tuesday

    Tuesday: Rain likely, then showers and possibly a thunderstorm after 11am.  Snow level 5200 feet. High near 45. West southwest wind 6 to 10 mph.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 45 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain.  Snow level 5000 feet. Low around 40. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain

  • Wednesday

    Wednesday: Rain.  Snow level 4700 feet. High near 43. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 43 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 11pm.  Snow level 4800 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 38.

    Low: 38 °F

    Rain Likely

  • Thursday

    Thursday: A chance of rain, mainly before 11am.  Snow level 4100 feet rising to 5400 feet in the afternoon. Mostly sunny, with a high near 53.

    High: 53 °F

    Chance Rain

Detailed Forecast

Today
A 30 percent chance of rain after 5pm. Snow level 6100 feet rising to 7600 feet in the afternoon. Mostly cloudy, with a high near 55. Southwest wind 7 to 10 mph.
Tonight
A 40 percent chance of rain after 3am. Snow level 7700 feet lowering to 5900 feet after midnight . Mostly cloudy, with a low around 44. Southwest wind around 6 mph becoming light and variable in the evening.
Monday
Rain. Snow level 5700 feet rising to 6400 feet. High near 47. East southeast wind 5 to 10 mph becoming south southwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Rain. Snow level 6100 feet lowering to 5300 feet after midnight . Low around 41. West wind 5 to 11 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain likely, then showers and possibly a thunderstorm after 11am. Snow level 5200 feet. High near 45. West southwest wind 6 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Snow level 5000 feet. Low around 40. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain. Snow level 4700 feet. High near 43. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
Rain likely, mainly before 11pm. Snow level 4800 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 38.
Thursday
A chance of rain, mainly before 11am. Snow level 4100 feet rising to 5400 feet in the afternoon. Mostly sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 38.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 42.
Saturday
A slight chance of rain. Snow level 6000 feet rising to 6500 feet in the afternoon. Sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
9 Miles WNW Illinois Valley OR
 42.15°N 123.85°W (Elev. 3356 ft)
4:41 am PDT Apr 19, 2026
6am PDT Apr 19, 2026-6pm PDT Apr 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database