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

50°F

10°C

Humidity 95%
Wind Speed S 5 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Wind Chill48°F (9°C)
Last update 15 Apr 10:52 AM PDT
Extended Forecast for

17 Miles WNW Illinois Valley OR

Freeze Watch April 17, 03:00am until April 17, 09:00am
Frost Advisory April 16, 03:00am until April 16, 09:00am
Click here for hazard details and duration
Freeze Watch
Frost Advisory
  • Today

    Today: Rain and snow before 1pm, then a chance of snow between 1pm and 2pm.  High near 40. West wind 9 to 18 mph, with gusts as high as 28 mph.  Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain/Snow

  • Tonight

    Tonight: A chance of snow between 8pm and 1am.  Partly cloudy, with a low around 27. North wind 6 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 27 °F

    Chance Snow

  • Thursday

    Thursday: Sunny, with a high near 45. North wind 7 to 12 mph increasing to 13 to 18 mph in the morning. Winds could gust as high as 28 mph.

    High: 45 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 33. Northeast wind around 18 mph, with gusts as high as 28 mph.

    Low: 33 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 53. East northeast wind 8 to 17 mph becoming west in the afternoon. Winds could gust as high as 26 mph.

    High: 53 °F

    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 40.

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: A 30 percent chance of rain after 11am.  Snow level 4800 feet rising to 6600 feet in the afternoon. Partly sunny, with a high near 52.

    High: 52 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely.  Snow level 6800 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 44.

    Low: 44 °F

    Rain Likely

  • Sunday

    Sunday: Rain.  Snow level 5700 feet lowering to 5200 feet. Cloudy, with a high near 47.

    High: 47 °F

    Rain

Detailed Forecast

Today
Rain and snow before 1pm, then a chance of snow between 1pm and 2pm. High near 40. West wind 9 to 18 mph, with gusts as high as 28 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than a half inch possible.
Tonight
A chance of snow between 8pm and 1am. Partly cloudy, with a low around 27. North wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Thursday
Sunny, with a high near 45. North wind 7 to 12 mph increasing to 13 to 18 mph in the morning. Winds could gust as high as 28 mph.
Thursday Night
Mostly clear, with a low around 33. Northeast wind around 18 mph, with gusts as high as 28 mph.
Friday
Sunny, with a high near 53. East northeast wind 8 to 17 mph becoming west in the afternoon. Winds could gust as high as 26 mph.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
A 30 percent chance of rain after 11am. Snow level 4800 feet rising to 6600 feet in the afternoon. Partly sunny, with a high near 52.
Saturday Night
Rain likely. Snow level 6800 feet lowering to 6200 feet after midnight . Mostly cloudy, with a low around 44.
Sunday
Rain. Snow level 5700 feet lowering to 5200 feet. Cloudy, with a high near 47.
Sunday Night
Rain. Snow level 5100 feet. Mostly cloudy, with a low around 42.
Monday
Rain likely. Snow level 4800 feet rising to 5500 feet in the afternoon. Mostly cloudy, with a high near 51.
Monday Night
Rain likely. Snow level 5500 feet. Mostly cloudy, with a low around 43.
Tuesday
A chance of rain. Snow level 5300 feet rising to 5800 feet in the afternoon. Partly sunny, with a high near 50.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles WNW Illinois Valley OR
 42.18°N 123.98°W (Elev. 4344 ft)
10:41 am PDT Apr 15, 2026
11am PDT Apr 15, 2026-6pm PDT Apr 21, 2026
 
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Additional Resources

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Hourly Weather Forecast

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