Typhoon Sinlaku to Impact the Marianas and Guam; Severe Weather from the Southern Plains to the Great Lakes

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 CNMI and tropical storm conditions over Guam. Severe thunderstorms and heavy rain are expected from the Southern Plains to the Great Lakes today. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

55°F

13°C

Humidity 52%
Wind Speed WSW 7 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 14 Apr 02:52 PM PDT
Extended Forecast for

17 Miles WNW Illinois Valley OR

  • This Afternoon

    This Afternoon: A chance of snow before 5pm, then a slight chance of rain and snow.  Mostly cloudy, with a high near 41. West southwest wind around 11 mph.  Chance of precipitation is 30%. Little or no snow accumulation expected.

    High: 41 °F

    Chance
    Rain/Snow

  • Tonight

    Tonight: Rain likely, possibly mixed with snow before 2am, then rain.  Snow level 4400 feet rising to 4900 feet after midnight. Low around 36. South southwest wind 11 to 20 mph, with gusts as high as 30 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    Low: 36 °F

    Rain/Snow
    Likely then
    Rain/Snow

  • Wednesday

    Wednesday: Rain, possibly mixing with snow after noon, then gradually ending.  Snow level 5800 feet lowering to 4300 feet in the afternoon . High near 40. Breezy, with a south southwest wind 20 to 25 mph becoming west 9 to 14 mph in the afternoon. Winds could gust as high as 38 mph.  Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Rain and
    Breezy then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Snow likely, mainly before 11pm.  Mostly cloudy, with a low around 26. North wind 6 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Snow Likely

  • Thursday

    Thursday: A 20 percent chance of snow before 11am.  Mostly 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

    Slight Chance
    Snow then
    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Friday

    Friday: Mostly sunny, with a high near 53.

    High: 53 °F

    Mostly Sunny

  • Friday Night

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

    Low: 40 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain, mainly after 11am.  Snow level 4400 feet rising to 6100 feet in the afternoon. Mostly cloudy, with a high near 51.

    High: 51 °F

    Chance Rain

Detailed Forecast

This Afternoon
A chance of snow before 5pm, then a slight chance of rain and snow. Mostly cloudy, with a high near 41. West southwest wind around 11 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Tonight
Rain likely, possibly mixed with snow before 2am, then rain. Snow level 4400 feet rising to 4900 feet after midnight. Low around 36. South southwest wind 11 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Wednesday
Rain, possibly mixing with snow after noon, then gradually ending. Snow level 5800 feet lowering to 4300 feet in the afternoon . High near 40. Breezy, with a south southwest wind 20 to 25 mph becoming west 9 to 14 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow likely, mainly before 11pm. Mostly cloudy, with a low around 26. North wind 6 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
A 20 percent chance of snow before 11am. Mostly 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 34.
Friday
Mostly sunny, with a high near 53.
Friday Night
Mostly cloudy, with a low around 40.
Saturday
A chance of rain, mainly after 11am. Snow level 4400 feet rising to 6100 feet in the afternoon. Mostly cloudy, with a high near 51.
Saturday Night
Rain likely. Snow level 6400 feet lowering to 5600 feet after midnight . Mostly cloudy, with a low around 42.
Sunday
Rain. Snow level 5100 feet lowering to 4500 feet in the afternoon . Cloudy, with a high near 44.
Sunday Night
Rain. Mostly cloudy, with a low around 40.
Monday
Rain. Mostly cloudy, with a high near 43.
Monday Night
Rain and snow likely. Snow level 4600 feet. Mostly cloudy, with a low around 38.
Tuesday
A chance of rain and snow. Snow level rising to 5100 feet in the afternoon. Partly sunny, with a high near 47.
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ABOUT THIS FORECAST

 
Point Forecast:
17 Miles WNW Illinois Valley OR
 42.18°N 123.98°W (Elev. 4344 ft)
12:51 pm PDT Apr 14, 2026
3pm PDT Apr 14, 2026-6pm PDT Apr 21, 2026
 
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Additional Resources

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