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

49°F

9°C

Humidity 100%
Wind Speed SW 1 MPH
Barometer NA
Dewpoint 49°F (9°C)
Visibility NA
Last update 11 Apr 03:52 AM PDT
Extended Forecast for

15 Miles ESE Cave Junction OR

  • Overnight

    Overnight: Rain likely, mainly before 5am.  Snow level 6000 feet. Mostly cloudy, with a low around 42. South wind around 6 mph.  Chance of precipitation is 60%.

    Low: 42 °F

    Rain Likely

  • Saturday

    Saturday: Rain before 11am, then rain, possibly mixed with snow showers. Some thunder is also possible.  Snow level 5600 feet. High near 46. South wind 6 to 9 mph.  Chance of precipitation is 100%. Little or no snow accumulation expected.

    High: 46 °F

    Rain/Snow

  • Saturday Night

    Saturday Night: Rain and snow before 4am, then a chance of rain between 4am and 5am, then snow, possibly mixed with rain after 5am.  Snow level 5200 feet lowering to 4500 feet after midnight . Low around 38. Light and variable wind becoming east around 6 mph after midnight.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 38 °F

    Rain/Snow

  • Sunday

    Sunday: Rain and snow showers. Some thunder is also possible.  Snow level 4200 feet rising to 4900 feet in the afternoon. High near 45. Southwest wind 3 to 8 mph.  Chance of precipitation is 90%. Little or no snow accumulation expected.

    High: 45 °F

    Rain/Snow

  • Sunday Night

    Sunday Night: Rain and snow, mainly before 11pm.  Snow level 5000 feet lowering to 4100 feet after midnight . Low around 39. West wind 5 to 7 mph.  Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 39 °F

    Rain/Snow

  • Monday

    Monday: Rain likely, possibly mixed with snow, becoming all rain after 11am.  Snow level 3900 feet rising to 4900 feet in the afternoon. Mostly cloudy, with a high near 45. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 45 °F

    Rain/Snow
    Likely then
    Rain Likely

  • Monday Night

    Monday Night: A 40 percent chance of rain before 11pm.  Snow level 5100 feet lowering to 4400 feet after midnight . Mostly cloudy, with a low around 38.

    Low: 38 °F

    Chance Rain
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 50.

    High: 50 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain before 8pm, then rain and snow likely.  Snow level 5200 feet lowering to 4000 feet after midnight . Mostly cloudy, with a low around 39.

    Low: 39 °F

    Rain/Snow
    Likely

Detailed Forecast

Overnight
Rain likely, mainly before 5am. Snow level 6000 feet. Mostly cloudy, with a low around 42. South wind around 6 mph. Chance of precipitation is 60%.
Saturday
Rain before 11am, then rain, possibly mixed with snow showers. Some thunder is also possible. Snow level 5600 feet. High near 46. South wind 6 to 9 mph. Chance of precipitation is 100%. Little or no snow accumulation expected.
Saturday Night
Rain and snow before 4am, then a chance of rain between 4am and 5am, then snow, possibly mixed with rain after 5am. Snow level 5200 feet lowering to 4500 feet after midnight . Low around 38. Light and variable wind becoming east around 6 mph after midnight. Chance of precipitation is 80%. Little or no snow accumulation expected.
Sunday
Rain and snow showers. Some thunder is also possible. Snow level 4200 feet rising to 4900 feet in the afternoon. High near 45. Southwest wind 3 to 8 mph. Chance of precipitation is 90%. Little or no snow accumulation expected.
Sunday Night
Rain and snow, mainly before 11pm. Snow level 5000 feet lowering to 4100 feet after midnight . Low around 39. West wind 5 to 7 mph. Chance of precipitation is 80%. Little or no snow accumulation expected.
Monday
Rain likely, possibly mixed with snow, becoming all rain after 11am. Snow level 3900 feet rising to 4900 feet in the afternoon. Mostly cloudy, with a high near 45. Chance of precipitation is 60%. Little or no snow accumulation expected.
Monday Night
A 40 percent chance of rain before 11pm. Snow level 5100 feet lowering to 4400 feet after midnight . Mostly cloudy, with a low around 38.
Tuesday
Partly sunny, with a high near 50.
Tuesday Night
A chance of rain before 8pm, then rain and snow likely. Snow level 5200 feet lowering to 4000 feet after midnight . Mostly cloudy, with a low around 39.
Wednesday
Rain and snow, becoming all rain after 11am. Snow level 4500 feet. Mostly cloudy, with a high near 44.
Wednesday Night
Rain and snow likely. Mostly cloudy, with a low around 31.
Thursday
A slight chance of snow. Sunny, with a high near 49.
Thursday Night
Mostly clear, with a low around 33.
Friday
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)
2:06 am PDT Apr 11, 2026
4am PDT Apr 11, 2026-6pm PDT Apr 17, 2026
 
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Additional Resources

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