Super Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather Threat from the Central Plains to the Great Lakes

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, and thunderstorms to the Marianas Islands into Wednesday. Tropical Storm conditions are likely over Guam. Severe thunderstorms and heavy rain are likely across the Upper Mississippi Valley and Great Lakes region with potential for large to very large hail, damaging wind, and tornadoes through Tuesday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

42°F

6°C

Humidity 100%
Wind Speed S 0 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Last update 13 Apr 08:52 AM PDT
Extended Forecast for

12 Miles NNE Happy Camp CA

  • Today

    Today: A chance of snow showers before noon, then a chance of rain and snow showers between noon and 3pm, then a chance of rain showers after 3pm.  Snow level rising to 5500 feet in the afternoon. Partly sunny, with a high near 40. Calm wind becoming west 5 to 7 mph in the afternoon.  Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 40 °F

    Chance Snow
    Showers then
    Chance
    Rain/Snow

  • Tonight

    Tonight: Mostly cloudy, with a low around 32. Northwest wind 3 to 7 mph.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of showers after 5pm.  Mostly sunny, with a high near 45. Light west wind becoming west southwest 6 to 11 mph in the afternoon.

    High: 45 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of rain and snow showers before 8pm, then snow showers likely.  Mostly cloudy, with a low around 34. Southwest wind 14 to 17 mph, with gusts as high as 23 mph.  Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 34 °F

    Rain/Snow
    Likely then
    Snow Showers
    Likely

  • Wednesday

    Wednesday: Snow showers before 8am, then rain and snow showers between 8am and 2pm, then snow showers after 2pm.  High near 36. South southwest wind 14 to 20 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. New snow accumulation of less than one inch possible.

    High: 36 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Snow showers, mainly before 11pm.  Low around 25. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 25 °F

    Snow Showers
    then Chance
    Snow Showers

  • Thursday

    Thursday: A 20 percent chance of snow before 11am.  Sunny, with a high near 38.

    High: 38 °F

    Slight Chance
    Snow then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 27.

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 49.

    High: 49 °F

    Mostly Sunny

Detailed Forecast

Today
A chance of snow showers before noon, then a chance of rain and snow showers between noon and 3pm, then a chance of rain showers after 3pm. Snow level rising to 5500 feet in the afternoon. Partly sunny, with a high near 40. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 40%. Little or no snow accumulation expected.
Tonight
Mostly cloudy, with a low around 32. Northwest wind 3 to 7 mph.
Tuesday
A 30 percent chance of showers after 5pm. Mostly sunny, with a high near 45. Light west wind becoming west southwest 6 to 11 mph in the afternoon.
Tuesday Night
A chance of rain and snow showers before 8pm, then snow showers likely. Mostly cloudy, with a low around 34. Southwest wind 14 to 17 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Wednesday
Snow showers before 8am, then rain and snow showers between 8am and 2pm, then snow showers after 2pm. High near 36. South southwest wind 14 to 20 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of less than one inch possible.
Wednesday Night
Snow showers, mainly before 11pm. Low around 25. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Thursday
A 20 percent chance of snow before 11am. Sunny, with a high near 38.
Thursday Night
Mostly clear, with a low around 27.
Friday
Mostly sunny, with a high near 49.
Friday Night
Partly cloudy, with a low around 37.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
A chance of rain and snow. Snow level 6500 feet lowering to 5600 feet after midnight . Mostly cloudy, with a low around 40.
Sunday
A chance of rain and snow. Snow level 5100 feet. Partly sunny, with a high near 44.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNE Happy Camp CA
 41.95°N 123.31°W (Elev. 4911 ft)
4:41 am PDT Apr 13, 2026
9am PDT Apr 13, 2026-6pm PDT Apr 19, 2026
 
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Additional Resources

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