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

67°F

19°C

Humidity 33%
Wind Speed SW 8 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 19 Apr 11:52 AM PDT
Extended Forecast for

17 Miles NE Happy Camp CA

Winter Weather Advisory April 20, 11:00am until April 21, 11:00am
Click here for hazard details and duration
Winter Weather Advisory
  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 60. South southeast wind 14 to 20 mph, with gusts as high as 29 mph.

    High: 60 °F

    Mostly Cloudy

  • Tonight

    Tonight: 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 2pm.  Snow level 5500 feet rising to 6300 feet in the afternoon. Increasing clouds, with a high near 48. South southeast wind 14 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 48 °F

    Chance Rain
    then Rain
    Likely

  • Monday Night

    Monday Night: Rain before 11pm, then rain likely, possibly mixed with snow between 11pm and 2am, then rain likely after 2am.  Snow level 6100 feet lowering to 5400 feet after midnight . Low around 38. South southwest wind 6 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow

  • Tuesday

    Tuesday: Rain likely before 11am, then rain, possibly mixed with snow between 11am and 2pm, then rain after 2pm. Some thunder is also possible.  Snow level 5000 feet rising to 5700 feet in the afternoon. High near 44. South southwest wind 6 to 9 mph becoming west northwest in the afternoon.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 44 °F

    Rain/Snow

  • Tuesday Night

    Tuesday Night: Rain before 11pm, then rain likely, possibly mixed with snow.  Snow level 5700 feet lowering to 4800 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: Snow likely before 11am, then rain likely, possibly mixed with snow between 11am and 2pm, then rain likely after 2pm.  Snow level rising to 5300 feet in the afternoon. Mostly cloudy, with a high near 45. Chance of precipitation is 70%. Little or no snow accumulation expected.

    High: 45 °F

    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm.  Snow level 5500 feet lowering to 4600 feet after midnight . Partly cloudy, with a low around 34.

    Low: 34 °F

    Chance Rain
    then Partly
    Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 60. South southeast wind 14 to 20 mph, with gusts as high as 29 mph.
Tonight
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 2pm. Snow level 5500 feet rising to 6300 feet in the afternoon. Increasing clouds, with a high near 48. South southeast wind 14 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain before 11pm, then rain likely, possibly mixed with snow between 11pm and 2am, then rain likely after 2am. Snow level 6100 feet lowering to 5400 feet after midnight . Low around 38. South southwest wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Tuesday
Rain likely before 11am, then rain, possibly mixed with snow between 11am and 2pm, then rain after 2pm. Some thunder is also possible. Snow level 5000 feet rising to 5700 feet in the afternoon. High near 44. South southwest wind 6 to 9 mph becoming west northwest in the afternoon. Chance of precipitation is 100%. Little or no snow accumulation expected.
Tuesday Night
Rain before 11pm, then rain likely, possibly mixed with snow. Snow level 5700 feet lowering to 4800 feet after midnight . Low around 38. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday
Snow likely before 11am, then rain likely, possibly mixed with snow between 11am and 2pm, then rain likely after 2pm. Snow level rising to 5300 feet in the afternoon. Mostly cloudy, with a high near 45. Chance of precipitation is 70%. Little or no snow accumulation expected.
Wednesday Night
A chance of rain before 11pm. Snow level 5500 feet lowering to 4600 feet after midnight . Partly cloudy, with a low around 34.
Thursday
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 41.
Saturday
A slight chance of rain. Snow level 6300 feet rising to 7000 feet in the afternoon. Sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles NE Happy Camp CA
 41.98°N 123.14°W (Elev. 4600 ft)
12:47 pm PDT Apr 19, 2026
12pm PDT Apr 19, 2026-6pm PDT Apr 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

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