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

48°F

9°C

Humidity 76%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 18 Apr 11:52 PM PDT
Extended Forecast for

17 Miles NE Happy Camp CA

  • Overnight

    Overnight: Mostly cloudy, with a steady temperature around 49. South southwest wind 5 to 13 mph, with gusts as high as 18 mph.

    Low: 49 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 10 percent chance of rain after 5pm.  Snow level 6200 feet rising to 7600 feet in the afternoon. Mostly cloudy, with a high near 60. Breezy, with a south southeast wind 14 to 22 mph, with gusts as high as 32 mph.

    High: 60 °F

    Mostly Cloudy
    and Breezy
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 45. South southeast wind 7 to 14 mph, with gusts as high as 21 mph.

    Low: 45 °F

    Mostly Cloudy

  • Monday

    Monday: Rain likely, mainly after 11am.  Snow level 5900 feet rising to 6700 feet in the afternoon. Mostly cloudy, with a high near 51. South southeast wind 14 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain.  Snow level 6500 feet lowering to 5700 feet after midnight . Low around 40. South wind 7 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain

  • Tuesday

    Tuesday: Rain showers likely before 8am, then rain likely, possibly mixed with snow showers between 8am and 11am, then rain showers after 11am. Some thunder is also possible.  Snow level 5700 feet. High near 44. Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 44 °F

    Rain/Snow
    then Showers

  • Tuesday Night

    Tuesday Night: Rain before 11pm, then rain likely, possibly mixed with snow. Some thunder is also possible.  Snow level 5800 feet lowering to 5000 feet after midnight . Low around 38. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow
    then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Rain, possibly mixed with snow, becoming all rain after 2pm.  Snow level 4800 feet rising to 5300 feet in the afternoon. Mostly cloudy, with a high near 43.

    High: 43 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm.  Snow level 5400 feet lowering to 4600 feet after midnight . Mostly cloudy, with a low around 35.

    Low: 35 °F

    Chance Rain
    then Mostly
    Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a steady temperature around 49. South southwest wind 5 to 13 mph, with gusts as high as 18 mph.
Sunday
A 10 percent chance of rain after 5pm. Snow level 6200 feet rising to 7600 feet in the afternoon. Mostly cloudy, with a high near 60. Breezy, with a south southeast wind 14 to 22 mph, with gusts as high as 32 mph.
Sunday Night
Mostly cloudy, with a low around 45. South southeast wind 7 to 14 mph, with gusts as high as 21 mph.
Monday
Rain likely, mainly after 11am. Snow level 5900 feet rising to 6700 feet in the afternoon. Mostly cloudy, with a high near 51. South southeast wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Rain. Snow level 6500 feet lowering to 5700 feet after midnight . Low around 40. South wind 7 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain showers likely before 8am, then rain likely, possibly mixed with snow showers between 8am and 11am, then rain showers after 11am. Some thunder is also possible. Snow level 5700 feet. High near 44. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tuesday Night
Rain before 11pm, then rain likely, possibly mixed with snow. Some thunder is also possible. Snow level 5800 feet lowering to 5000 feet after midnight . Low around 38. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday
Rain, possibly mixed with snow, becoming all rain after 2pm. Snow level 4800 feet rising to 5300 feet in the afternoon. Mostly cloudy, with a high near 43.
Wednesday Night
A chance of rain before 11pm. Snow level 5400 feet lowering to 4600 feet after midnight . Mostly cloudy, with a low around 35.
Thursday
A slight chance of rain after 11am. Snow level rising to 5700 feet in the afternoon. Mostly sunny, with a high near 52.
Thursday Night
Mostly clear, with a low around 38.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 40.
Saturday
Sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles NE Happy Camp CA
 41.98°N 123.14°W (Elev. 4600 ft)
11:35 pm PDT Apr 18, 2026
12am PDT Apr 19, 2026-6pm PDT Apr 25, 2026
 
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Additional Resources

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