Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

48°F

9°C

Humidity 100%
Wind Speed WSW 0 MPH
Barometer NA
Dewpoint 48°F (9°C)
Visibility NA
Last update 11 Apr 06:52 AM PDT
Extended Forecast for

18 Miles WNW Cave Junction OR

  • Today

    Today: Rain and possibly a thunderstorm before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then rain and possibly a thunderstorm after 5pm.  Snow level 5600 feet lowering to 4800 feet in the afternoon . High near 45. South southwest wind 5 to 8 mph.  Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 45 °F

    Showers

  • Tonight

    Tonight: Rain before midnight, then rain likely, possibly mixed with snow between midnight and 3am, then rain likely after 3am.  Snow level 5000 feet lowering to 4300 feet after midnight . Low around 40. East northeast wind around 6 mph becoming light and variable.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 40 °F

    Rain then
    Rain/Snow
    Likely

  • Sunday

    Sunday: Rain before 11am, then showers and possibly a thunderstorm after 11am.  Snow level 4000 feet rising to 4700 feet in the afternoon. High near 47. West southwest wind 3 to 7 mph.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 47 °F

    Showers

  • Sunday Night

    Sunday Night: Rain.  Snow level 4600 feet lowering to 3900 feet after midnight . Low around 41. West wind 5 to 8 mph.  Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Rain

  • Monday

    Monday: Rain likely.  Snow level 3800 feet rising to 4400 feet in the afternoon. Mostly cloudy, with a high near 47. Light west wind increasing to 5 to 9 mph in the afternoon.  Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Rain Likely

  • Monday Night

    Monday Night: A 40 percent chance of rain, mainly before 11pm.  Snow level 4500 feet lowering to 3800 feet after midnight . Mostly cloudy, with a low around 39.

    Low: 39 °F

    Chance Rain

  • Tuesday

    Tuesday: A 20 percent chance of rain.  Snow level 3500 feet rising to 4000 feet in the afternoon. Partly sunny, with a high near 48.

    High: 48 °F

    Slight Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly after 11pm.  Snow level 4100 feet. Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain Likely

  • Wednesday

    Wednesday: Rain.  Snow level 4400 feet. Cloudy, with a high near 45.

    High: 45 °F

    Rain

Detailed Forecast

Today
Rain and possibly a thunderstorm before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then rain and possibly a thunderstorm after 5pm. Snow level 5600 feet lowering to 4800 feet in the afternoon . High near 45. South southwest wind 5 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Tonight
Rain before midnight, then rain likely, possibly mixed with snow between midnight and 3am, then rain likely after 3am. Snow level 5000 feet lowering to 4300 feet after midnight . Low around 40. East northeast wind around 6 mph becoming light and variable. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
Rain before 11am, then showers and possibly a thunderstorm after 11am. Snow level 4000 feet rising to 4700 feet in the afternoon. High near 47. West southwest wind 3 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night
Rain. Snow level 4600 feet lowering to 3900 feet after midnight . Low around 41. West wind 5 to 8 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely. Snow level 3800 feet rising to 4400 feet in the afternoon. Mostly cloudy, with a high near 47. Light west wind increasing to 5 to 9 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
A 40 percent chance of rain, mainly before 11pm. Snow level 4500 feet lowering to 3800 feet after midnight . Mostly cloudy, with a low around 39.
Tuesday
A 20 percent chance of rain. Snow level 3500 feet rising to 4000 feet in the afternoon. Partly sunny, with a high near 48.
Tuesday Night
Rain likely, mainly after 11pm. Snow level 4100 feet. Mostly cloudy, with a low around 41.
Wednesday
Rain. Snow level 4400 feet. Cloudy, with a high near 45.
Wednesday Night
Rain likely before 8pm, then rain and snow likely between 8pm and 2am, then a chance of snow after 2am. Snow level 3900 feet lowering to 2500 feet after midnight . Mostly cloudy, with a low around 35.
Thursday
A slight chance of snow. Snow level rising to 3500 feet in the afternoon. Mostly sunny, with a high near 53.
Thursday Night
Mostly clear, with a low around 37.
Friday
Sunny, with a high near 61.
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles WNW Cave Junction OR
 42.22°N 123.99°W (Elev. 2487 ft)
4:41 am PDT Apr 11, 2026
7am PDT Apr 11, 2026-6pm PDT Apr 17, 2026
 
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