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

63°F

17°C

Humidity 32%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 33°F (1°C)
Visibility NA
Last update 18 Apr 07:52 PM PDT
Extended Forecast for

7 Miles SW Illinois Valley OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. West southwest wind 5 to 10 mph becoming light south  after midnight. Winds could gust as high as 18 mph.

    Low: 46 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 63. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 63 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 30 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 44. West wind 5 to 9 mph becoming light and variable  in the evening.

    Low: 44 °F

    Chance Rain

  • Monday

    Monday: Rain.  High near 56. Light and variable wind becoming southwest 5 to 7 mph in the afternoon.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 56 °F

    Rain

  • Monday Night

    Monday Night: Rain.  Low around 42. Southwest wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 42 °F

    Rain

  • Tuesday

    Tuesday: Rain before 11am, then showers and possibly a thunderstorm after 11am.  High near 52. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 52 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain.  Snow level 5400 feet lowering to 4800 feet after midnight . Low around 40. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 40 °F

    Rain

  • Wednesday

    Wednesday: Rain.  Snow level 4700 feet. Cloudy, with a high near 48.

    High: 48 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 11pm.  Snow level 4900 feet lowering to 4100 feet after midnight . Mostly cloudy, with a low around 38.

    Low: 38 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 46. West southwest wind 5 to 10 mph becoming light south after midnight. Winds could gust as high as 18 mph.
Sunday
Mostly cloudy, with a high near 63. Calm wind becoming west southwest 5 to 9 mph in the afternoon.
Sunday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 44. West wind 5 to 9 mph becoming light and variable in the evening.
Monday
Rain. High near 56. Light and variable wind becoming southwest 5 to 7 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Low around 42. Southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain before 11am, then showers and possibly a thunderstorm after 11am. High near 52. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Snow level 5400 feet lowering to 4800 feet after midnight . Low around 40. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. Snow level 4700 feet. Cloudy, with a high near 48.
Wednesday Night
Rain likely, mainly before 11pm. Snow level 4900 feet lowering to 4100 feet after midnight . Mostly cloudy, with a low around 38.
Thursday
A chance of rain, mainly before 11am. Snow level 4000 feet rising to 5200 feet in the afternoon. Partly sunny, with a high near 56.
Thursday Night
Mostly clear, with a low around 38.
Friday
Sunny, with a high near 63.
Friday Night
Mostly clear, with a low around 41.
Saturday
A slight chance of rain. Sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles SW Illinois Valley OR
 42.03°N 123.78°W (Elev. 2428 ft)
4:41 pm PDT Apr 18, 2026
8pm PDT Apr 18, 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