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

Super Typhoon Sinlaku will bring destructive winds, widespread heavy rain/flooding, thunderstorms, and coastal impacts to the Marianas Islands into Wednesday. Typhoon conditions are likely over the Northern Mariana Islands. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes through Tuesday. Heavy snow is expected in the Pacific Northwest. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

40°F

4°C

Humidity 88%
Wind Speed SSW 2 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 13 Apr 11:52 PM PDT
Extended Forecast for

12 Miles NNE Happy Camp CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 33. West wind around 5 mph.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after 5pm.  Increasing clouds, with a high near 46. Light south southwest wind becoming west southwest 9 to 14 mph in the morning. Winds could gust as high as 18 mph.

    High: 46 °F

    Mostly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Snow likely, mainly after 2am.  Mostly cloudy, with a low around 34. Southwest wind 16 to 21 mph, with gusts as high as 31 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 34 °F

    Chance Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: Snow.  High near 34. Windy, with a south southwest wind 23 to 30 mph, with gusts as high as 45 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.

    High: 34 °F

    Snow and
    Windy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow, mainly before 11pm.  Mostly cloudy, with a low around 25. West northwest wind 11 to 18 mph, with gusts as high as 28 mph.  New snow accumulation of less than a half inch possible.

    Low: 25 °F

    Chance Snow
    then Slight
    Chance Snow

  • Thursday

    Thursday: Sunny, with a high near 37. Breezy.

    High: 37 °F

    Sunny and
    Breezy

  • Thursday Night

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

    Low: 27 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 50.

    High: 50 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 36.

    Low: 36 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 33. West wind around 5 mph.
Tuesday
A 30 percent chance of rain after 5pm. Increasing clouds, with a high near 46. Light south southwest wind becoming west southwest 9 to 14 mph in the morning. Winds could gust as high as 18 mph.
Tuesday Night
Snow likely, mainly after 2am. Mostly cloudy, with a low around 34. Southwest wind 16 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
Snow. High near 34. Windy, with a south southwest wind 23 to 30 mph, with gusts as high as 45 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 3 inches possible.
Wednesday Night
A 50 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 25. West northwest wind 11 to 18 mph, with gusts as high as 28 mph. New snow accumulation of less than a half inch possible.
Thursday
Sunny, with a high near 37. Breezy.
Thursday Night
Mostly clear, with a low around 27.
Friday
Sunny, with a high near 50.
Friday Night
Mostly cloudy, with a low around 36.
Saturday
Mostly sunny, with a high near 52.
Saturday Night
A chance of rain. Snow level 7200 feet lowering to 6600 feet after midnight . Mostly cloudy, with a low around 39.
Sunday
Rain. Snow level 6400 feet lowering to 5500 feet in the afternoon . Mostly cloudy, with a high near 41.
Sunday Night
Rain and snow. Mostly cloudy, with a low around 33.
Monday
Rain and snow likely. Mostly cloudy, with a high near 40.
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ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNE Happy Camp CA
 41.96°N 123.25°W (Elev. 5138 ft)
11:26 pm PDT Apr 13, 2026
12am PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
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Additional Resources

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Hourly Weather Forecast

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