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

34°F

1°C

Humidity 100%
Wind Speed NE 0 MPH
Barometer NA
Dewpoint 34°F (1°C)
Visibility NA
Last update 14 Apr 01:52 AM PDT
Extended Forecast for

16 Miles NE Happy Camp CA

  • Overnight

    Overnight: Mostly cloudy, with a low around 37. Calm wind.

    Low: 37 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Increasing clouds, with a high near 54. Calm wind becoming west southwest 5 to 9 mph in the afternoon.

    High: 54 °F

    Increasing
    Clouds

  • Tuesday Night

    Tuesday Night: A chance of rain before 2am, then rain likely, possibly mixed with snow between 2am and 4am, then rain likely after 4am.  Snow level 4900 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 39. West southwest wind 10 to 14 mph, with gusts as high as 26 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    Low: 39 °F

    Chance Rain
    then
    Rain/Snow
    Likely

  • Wednesday

    Wednesday: Rain, possibly mixed with snow before 11am, then rain between 11am and 5pm, then a chance of rain and snow after 5pm.  Snow level 4800 feet lowering to 4200 feet in the afternoon . High near 42. South southwest wind 17 to 21 mph, with gusts as high as 31 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain and snow before 8pm, then a chance of snow.  Mostly cloudy, with a low around 29. North northwest wind 6 to 13 mph, with gusts as high as 20 mph.  Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Chance
    Rain/Snow
    then Slight
    Chance Snow

  • Thursday

    Thursday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 31.

    Low: 31 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 56.

    High: 56 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 37. Calm wind.
Tuesday
Increasing clouds, with a high near 54. Calm wind becoming west southwest 5 to 9 mph in the afternoon.
Tuesday Night
A chance of rain before 2am, then rain likely, possibly mixed with snow between 2am and 4am, then rain likely after 4am. Snow level 4900 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 39. West southwest wind 10 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Wednesday
Rain, possibly mixed with snow before 11am, then rain between 11am and 5pm, then a chance of rain and snow after 5pm. Snow level 4800 feet lowering to 4200 feet in the afternoon . High near 42. South southwest wind 17 to 21 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
A chance of rain and snow before 8pm, then a chance of snow. Mostly cloudy, with a low around 29. North northwest wind 6 to 13 mph, with gusts as high as 20 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Thursday
Sunny, with a high near 45.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 56.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 60.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 44.
Sunday
Rain. Snow level 6400 feet lowering to 5600 feet in the afternoon . Mostly cloudy, with a high near 49.
Sunday Night
Rain and snow. Snow level 5300 feet lowering to 4000 feet after midnight . Mostly cloudy, with a low around 37.
Monday
Rain and snow likely. Snow level 3800 feet rising to 4700 feet in the afternoon. Mostly cloudy, with a high near 48.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles NE Happy Camp CA
 41.97°N 123.17°W (Elev. 2999 ft)
1:57 am PDT Apr 14, 2026
2am 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