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 32. West wind 3 to 5 mph.

    Low: 32 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A 30 percent chance of rain after 5pm.  Snow level rising to 5800 feet in the afternoon. Increasing clouds, with a high near 45. Light southwest wind becoming west southwest 6 to 11 mph in the afternoon.

    High: 45 °F

    Mostly Sunny
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A chance of rain and snow before 7pm, then snow likely.  Mostly cloudy, with a low around 33. Southwest wind 13 to 15 mph, with gusts as high as 23 mph.  Chance of precipitation is 70%. New snow accumulation of less than one inch possible.

    Low: 33 °F

    Chance
    Rain/Snow
    then Snow
    Likely

  • Wednesday

    Wednesday: Snow.  High near 35. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 33 mph.  Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.

    High: 35 °F

    Snow and
    Breezy

  • Wednesday Night

    Wednesday Night: A 50 percent chance of snow, mainly before 11pm.  Mostly cloudy, with a low around 25. West wind 8 to 15 mph, with gusts as high as 23 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 38.

    High: 38 °F

    Sunny

  • 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 32. West wind 3 to 5 mph.
Tuesday
A 30 percent chance of rain after 5pm. Snow level rising to 5800 feet in the afternoon. Increasing clouds, with a high near 45. Light southwest wind becoming west southwest 6 to 11 mph in the afternoon.
Tuesday Night
A chance of rain and snow before 7pm, then snow likely. Mostly cloudy, with a low around 33. Southwest wind 13 to 15 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New snow accumulation of less than one inch possible.
Wednesday
Snow. High near 35. Breezy, with a south southwest wind 16 to 22 mph, with gusts as high as 33 mph. Chance of precipitation is 100%. New snow accumulation of 1 to 2 inches possible.
Wednesday Night
A 50 percent chance of snow, mainly before 11pm. Mostly cloudy, with a low around 25. West wind 8 to 15 mph, with gusts as high as 23 mph. New snow accumulation of less than a half inch possible.
Thursday
Sunny, with a high near 38.
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 51.
Saturday Night
A chance of rain. Snow level 6800 feet. Mostly cloudy, with a low around 39.
Sunday
Rain and snow. Snow level 6400 feet lowering to 5400 feet in the afternoon . Mostly cloudy, with a high near 41.
Sunday Night
Rain and snow. Mostly cloudy, with a low around 34.
Monday
Rain and snow likely. Mostly cloudy, with a high near 40.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
12 Miles NNE Happy Camp CA
 41.95°N 123.31°W (Elev. 4911 ft)
11:26 pm PDT Apr 13, 2026
12am PDT Apr 14, 2026-6pm PDT Apr 20, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database