Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

47°F

8°C

Humidity 72%
Wind Speed SSW 6 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 15 Apr 12:52 AM PDT
Extended Forecast for

7 Miles NE Happy Camp CA

Freeze Watch April 17, 03:00am until April 17, 09:00am
Click here for hazard details and duration
Freeze Watch
  • Overnight

    Overnight: A 50 percent chance of rain.  Snow level 4700 feet. Mostly cloudy, with a low around 40. West wind around 5 mph.

    Low: 40 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain, mainly before 3pm.  Snow level 5500 feet lowering to 4000 feet in the afternoon . High near 52. Light west wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph.  Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 52 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain, mixing with snow after 9pm, then gradually ending.  Widespread frost after 5am. Snow level 3100 feet lowering to 2000 feet after midnight .  Otherwise, partly cloudy, with a low around 34. West northwest wind 6 to 11 mph becoming light north northwest  after midnight.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 34 °F

    Chance
    Rain/Snow
    then Frost

  • Thursday

    Thursday: Widespread frost, mainly before 8am.  Otherwise, sunny, with a high near 56. Light north wind becoming north northeast 5 to 9 mph in the afternoon.

    High: 56 °F

    Frost then
    Sunny

  • Thursday Night

    Thursday Night: Widespread frost, mainly after 2am.  Otherwise, clear, with a low around 34. Northeast wind 3 to 8 mph.

    Low: 34 °F

    Frost

  • Friday

    Friday: Widespread frost, mainly before 8am.  Otherwise, sunny, with a high near 67.

    High: 67 °F

    Frost then
    Sunny

  • Friday Night

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

    Low: 39 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 72.

    High: 72 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of rain.  Mostly cloudy, with a low around 44.

    Low: 44 °F

    Chance Rain

Detailed Forecast

Overnight
A 50 percent chance of rain. Snow level 4700 feet. Mostly cloudy, with a low around 40. West wind around 5 mph.
Wednesday
Rain, mainly before 3pm. Snow level 5500 feet lowering to 4000 feet in the afternoon . High near 52. Light west wind becoming southwest 8 to 13 mph in the morning. Winds could gust as high as 20 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday Night
A chance of rain, mixing with snow after 9pm, then gradually ending. Widespread frost after 5am. Snow level 3100 feet lowering to 2000 feet after midnight . Otherwise, partly cloudy, with a low around 34. West northwest wind 6 to 11 mph becoming light north northwest after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.
Thursday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 56. Light north wind becoming north northeast 5 to 9 mph in the afternoon.
Thursday Night
Widespread frost, mainly after 2am. Otherwise, clear, with a low around 34. Northeast wind 3 to 8 mph.
Friday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 67.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
A chance of rain. Mostly cloudy, with a low around 44.
Sunday
Rain likely. Mostly cloudy, with a high near 64.
Sunday Night
Rain likely. Snow level 5700 feet lowering to 5000 feet after midnight . Mostly cloudy, with a low around 42.
Monday
A chance of rain. Snow level 4900 feet rising to 5700 feet in the afternoon. Partly sunny, with a high near 67.
Monday Night
A chance of rain. Mostly cloudy, with a low around 43.
Tuesday
A chance of rain. Partly sunny, with a high near 63.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles NE Happy Camp CA
 41.87°N 123.26°W (Elev. 2041 ft)
11:26 pm PDT Apr 14, 2026
1am PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database