National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

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

53°F

12°C

Humidity 99%
Wind Speed NNE 1 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Last update 10 Apr 08:52 AM PDT
Extended Forecast for

18 Miles WNW Cave Junction OR

  • Today

    Today: Rain and possibly a thunderstorm before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. High near 53. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 53 °F

    Showers

  • Tonight

    Tonight: Rain and possibly a thunderstorm. Low around 45. South wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 45 °F

    Rain

  • Saturday

    Saturday: Rain before 11am, then showers and possibly a thunderstorm between 11am and 2pm, then rain after 2pm. Snow level 5500 feet lowering to 4600 feet in the afternoon . High near 46. South southwest wind 6 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    High: 46 °F

    Showers

  • Saturday Night

    Saturday Night: Rain. Snow level 4900 feet. Low around 42. South wind around 6 mph becoming north in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 42 °F

    Rain

  • Sunday

    Sunday: Rain. Snow level 4700 feet. High near 47. North northeast wind 5 to 8 mph becoming west in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 47 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Snow level 4800 feet lowering to 4300 feet. Low around 42. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 42 °F

    Rain

  • Monday

    Monday: Rain likely. Snow level 4300 feet. Mostly cloudy, with a high near 48. Chance of precipitation is 70%.

    High: 48 °F

    Rain Likely

  • Monday Night

    Monday Night: A chance of rain, mainly before 11pm. Snow level 4500 feet lowering to 3800 feet after midnight . Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain

  • Tuesday

    Tuesday: Partly sunny, with a high near 52.

    High: 52 °F

    Partly Sunny

Detailed Forecast

Today
Rain and possibly a thunderstorm before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. High near 53. Calm wind becoming southwest 5 to 8 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tonight
Rain and possibly a thunderstorm. Low around 45. South wind around 7 mph. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Rain before 11am, then showers and possibly a thunderstorm between 11am and 2pm, then rain after 2pm. Snow level 5500 feet lowering to 4600 feet in the afternoon . High near 46. South southwest wind 6 to 8 mph. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday Night
Rain. Snow level 4900 feet. Low around 42. South wind around 6 mph becoming north in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
Rain. Snow level 4700 feet. High near 47. North northeast wind 5 to 8 mph becoming west in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday Night
Rain. Snow level 4800 feet lowering to 4300 feet. Low around 42. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Rain likely. Snow level 4300 feet. Mostly cloudy, with a high near 48. Chance of precipitation is 70%.
Monday Night
A chance of rain, mainly before 11pm. Snow level 4500 feet lowering to 3800 feet after midnight . Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 52.
Tuesday Night
A chance of rain, mainly after 11pm. Snow level 4400 feet. Mostly cloudy, with a low around 41.
Wednesday
A chance of rain. Snow level 4400 feet rising to 5200 feet in the afternoon. Partly sunny, with a high near 50.
Wednesday Night
A chance of rain. Snow level 5100 feet lowering to 4000 feet after midnight . Mostly cloudy, with a low around 40.
Thursday
A slight chance of rain. Snow level 3800 feet rising to 4700 feet in the afternoon. Mostly sunny, with a high near 57.
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ABOUT THIS FORECAST

 
Point Forecast:
18 Miles WNW Cave Junction OR
 42.22°N 123.99°W (Elev. 2487 ft)
Last Update:
4:41 am PDT Apr 10, 2026
Forecast Valid:
9am PDT Apr 10, 2026-6pm PDT Apr 16, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation