Hawaii and Guam Concerns; Severe Weather for the Plains; Heavy Snow for Sierra-Nevada

Heavy rainfall capable of causing flash flooding will continue to impact Hawaii through Monday. Severe thunderstorms and heavy rain are possible in parts of Texas and the southern Plains and the Upper Great Lakes. Heavy mountain snow continues in California's Sierra Nevada and rain with gusty winds to lower elevations. Super Typhoon Sinlaku will impact the Marianas through midweek. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

53°F

12°C

Humidity 76%
Wind Speed S 4 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 12 Apr 12:52 PM PDT
Extended Forecast for

15 Miles ESE Cave Junction OR

  • This Afternoon

    This Afternoon: Showers and thunderstorms likely before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then rain likely and possibly a thunderstorm after 5pm.  Snow level 5200 feet. High near 45. West wind 6 to 8 mph.  Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 45 °F

    Showers

  • Tonight

    Tonight: Rain and snow likely before 10pm, then a chance of rain and snow after 3am.  Snow level 5000 feet lowering to 4400 feet after midnight . Mostly cloudy, with a low around 35. West southwest wind 5 to 7 mph.  Chance of precipitation is 70%. Little or no snow accumulation expected.

    Low: 35 °F

    Rain/Snow
    Likely then
    Chance
    Rain/Snow

  • Monday

    Monday: Rain and snow likely before 4pm, then a chance of rain.  Snow level 4300 feet rising to 5200 feet in the afternoon. Partly sunny, with a high near 46. West wind 3 to 8 mph.  Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow
    Likely

  • Monday Night

    Monday Night: A 30 percent chance of rain before 11pm.  Snow level 5300 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 36. West wind 3 to 8 mph.

    Low: 36 °F

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 49. Light west southwest wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 24 mph.

    High: 49 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Rain.  Snow level 4800 feet lowering to 4200 feet. Low around 40. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 40 °F

    Rain

  • Wednesday

    Wednesday: Rain before 11am, then rain, possibly mixed with snow.  Snow level 4700 feet. High near 42. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow

  • Wednesday Night

    Wednesday Night: Rain and snow likely, becoming all snow after 8pm.  Mostly cloudy, with a low around 29.

    Low: 29 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Thursday

    Thursday: A slight chance of snow before 2pm, then a slight chance of rain.  Mostly sunny, with a high near 45.

    High: 45 °F

    Slight Chance
    Snow then
    Slight Chance
    Rain/Snow

Detailed Forecast

This Afternoon
Showers and thunderstorms likely before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then rain likely and possibly a thunderstorm after 5pm. Snow level 5200 feet. High near 45. West wind 6 to 8 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and snow likely before 10pm, then a chance of rain and snow after 3am. Snow level 5000 feet lowering to 4400 feet after midnight . Mostly cloudy, with a low around 35. West southwest wind 5 to 7 mph. Chance of precipitation is 70%. Little or no snow accumulation expected.
Monday
Rain and snow likely before 4pm, then a chance of rain. Snow level 4300 feet rising to 5200 feet in the afternoon. Partly sunny, with a high near 46. West wind 3 to 8 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday Night
A 30 percent chance of rain before 11pm. Snow level 5300 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 36. West wind 3 to 8 mph.
Tuesday
Partly sunny, with a high near 49. Light west southwest wind becoming west 6 to 11 mph in the afternoon. Winds could gust as high as 24 mph.
Tuesday Night
Rain. Snow level 4800 feet lowering to 4200 feet. Low around 40. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain before 11am, then rain, possibly mixed with snow. Snow level 4700 feet. High near 42. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow likely, becoming all snow after 8pm. Mostly cloudy, with a low around 29.
Thursday
A slight chance of snow before 2pm, then a slight chance of rain. Mostly sunny, with a high near 45.
Thursday Night
Mostly clear, with a low around 31.
Friday
Sunny, with a high near 55.
Friday Night
Partly cloudy, with a low around 39.
Saturday
Mostly sunny, with a high near 59.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ESE Cave Junction OR
 42.12°N 123.36°W (Elev. 3658 ft)
1:56 pm PDT Apr 12, 2026
1pm PDT Apr 12, 2026-6pm PDT Apr 18, 2026
 
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Additional Resources

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