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 5 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 14 Apr 09:52 PM PDT
Extended Forecast for

5 Miles NNW Cave Junction OR

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

    Tonight: Rain.  Snow level 4700 feet. Low around 42. South wind 6 to 9 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain Likely
    then Rain

  • Wednesday

    Wednesday: Rain, mainly before 2pm.  Snow level 5400 feet lowering to 3400 feet in the afternoon . High near 52. South southwest wind 9 to 11 mph becoming west northwest in the afternoon.  Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    High: 52 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain before 11pm, then a chance of rain and snow.  Snow level 3000 feet lowering to 1800 feet after midnight . Mostly cloudy, with a low around 32. West northwest wind 5 to 10 mph becoming light and variable  in the evening.  Chance of precipitation is 50%. Little or no snow accumulation expected.

    Low: 32 °F

    Chance
    Rain/Snow

  • Thursday

    Thursday: A slight chance of rain and snow before 8am, then a slight chance of rain between 8am and 11am.  Snow level 1800 feet rising to 3100 feet in the afternoon. Mostly sunny, with a high near 55. Calm wind becoming north northeast around 5 mph in the afternoon.  Chance of precipitation is 20%.

    High: 55 °F

    Slight Chance
    Rain/Snow
    then Sunny

  • Thursday Night

    Thursday Night: Widespread frost, mainly after 2am.  Otherwise, mostly clear, with a low around 31. North wind around 6 mph becoming calm  in the evening.

    Low: 31 °F

    Frost

  • Friday

    Friday: Widespread frost, mainly before 8am.  Otherwise, sunny, with a high near 64.

    High: 64 °F

    Frost then
    Mostly Sunny

  • Friday Night

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

    Low: 39 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain after 11am.  Partly sunny, with a high near 67.

    High: 67 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Rain likely, mainly after 11pm.  Mostly cloudy, with a low around 44.

    Low: 44 °F

    Rain Likely

Detailed Forecast

Tonight
Rain. Snow level 4700 feet. Low around 42. South wind 6 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain, mainly before 2pm. Snow level 5400 feet lowering to 3400 feet in the afternoon . High near 52. South southwest wind 9 to 11 mph becoming west northwest in the afternoon. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday Night
A chance of rain before 11pm, then a chance of rain and snow. Snow level 3000 feet lowering to 1800 feet after midnight . Mostly cloudy, with a low around 32. West northwest wind 5 to 10 mph becoming light and variable in the evening. Chance of precipitation is 50%. Little or no snow accumulation expected.
Thursday
A slight chance of rain and snow before 8am, then a slight chance of rain between 8am and 11am. Snow level 1800 feet rising to 3100 feet in the afternoon. Mostly sunny, with a high near 55. Calm wind becoming north northeast around 5 mph in the afternoon. Chance of precipitation is 20%.
Thursday Night
Widespread frost, mainly after 2am. Otherwise, mostly clear, with a low around 31. North wind around 6 mph becoming calm in the evening.
Friday
Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 39.
Saturday
A chance of rain after 11am. Partly sunny, with a high near 67.
Saturday Night
Rain likely, mainly after 11pm. Mostly cloudy, with a low around 44.
Sunday
Rain. Mostly cloudy, with a high near 56.
Sunday Night
Rain. Snow level 4800 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 39.
Monday
Rain likely. Snow level 4000 feet rising to 4600 feet in the afternoon. Mostly cloudy, with a high near 56.
Monday Night
A chance of rain. Snow level 4600 feet. Mostly cloudy, with a low around 38.
Tuesday
A chance of rain. Snow level 4300 feet rising to 5200 feet in the afternoon. Partly sunny, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Cave Junction OR
 42.25°N 123.69°W (Elev. 1499 ft)
8:46 pm PDT Apr 14, 2026
10pm PDT Apr 14, 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