Showers and Thunderstorms for the Eastern Third of the Country; Fire Weather Concerns; Flooding Issues for the Great Lakes Region

Showers and thunderstorms will continue along and ahead of a cold front for the eastern third of the country. The rainfall for the Great Lakes region could prolong the ongoing flooding. Much cooler weather will filter in behind this cold front along and east of the Rockies. Where the rain is needed, the Southern High Plains, critical fire weather concerns through this weekend. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

74°F

23°C

Humidity 21%
Wind Speed WSW 6 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 18 Apr 04:52 PM PDT
Extended Forecast for

15 Miles ESE Cave Junction OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 44. Calm wind becoming southeast 5 to 7 mph in the evening.

    Low: 44 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 60. South southeast wind 8 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.

    High: 60 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 20 percent chance of rain after 11pm.  Snow level 7900 feet lowering to 6500 feet after midnight . Mostly cloudy, with a low around 42. South wind 8 to 13 mph becoming north northwest in the evening. Winds could gust as high as 20 mph.

    Low: 42 °F

    Slight Chance
    Rain

  • Monday

    Monday: Rain likely, mainly after 11am.  Snow level 6300 feet rising to 6900 feet in the afternoon. Mostly cloudy, with a high near 53. South wind 9 to 14 mph, with gusts as high as 21 mph.  Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain Likely

  • Monday Night

    Monday Night: Rain.  Snow level 6900 feet lowering to 6100 feet after midnight . Low around 39. South southwest wind 6 to 11 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Rain

  • Tuesday

    Tuesday: Rain likely, then showers and possibly a thunderstorm after 11am.  Snow level 5700 feet. High near 44. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 44 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain before 8pm, then rain and snow.  Snow level 5700 feet lowering to 4900 feet after midnight . Low around 37. Chance of precipitation is 90%. Little or no snow accumulation expected.

    Low: 37 °F

    Rain/Snow

  • Wednesday

    Wednesday: Rain and snow, becoming all rain after 11am.  Snow level 4800 feet. Cloudy, with a high near 42.

    High: 42 °F

    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Rain and snow likely before 2am, then a slight chance of snow.  Mostly cloudy, with a low around 33.

    Low: 33 °F

    Rain/Snow
    Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 44. Calm wind becoming southeast 5 to 7 mph in the evening.
Sunday
Mostly cloudy, with a high near 60. South southeast wind 8 to 13 mph becoming west southwest in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
A 20 percent chance of rain after 11pm. Snow level 7900 feet lowering to 6500 feet after midnight . Mostly cloudy, with a low around 42. South wind 8 to 13 mph becoming north northwest in the evening. Winds could gust as high as 20 mph.
Monday
Rain likely, mainly after 11am. Snow level 6300 feet rising to 6900 feet in the afternoon. Mostly cloudy, with a high near 53. South wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Snow level 6900 feet lowering to 6100 feet after midnight . Low around 39. South southwest wind 6 to 11 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Tuesday
Rain likely, then showers and possibly a thunderstorm after 11am. Snow level 5700 feet. High near 44. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Rain before 8pm, then rain and snow. Snow level 5700 feet lowering to 4900 feet after midnight . Low around 37. Chance of precipitation is 90%. Little or no snow accumulation expected.
Wednesday
Rain and snow, becoming all rain after 11am. Snow level 4800 feet. Cloudy, with a high near 42.
Wednesday Night
Rain and snow likely before 2am, then a slight chance of snow. Mostly cloudy, with a low around 33.
Thursday
A slight chance of snow before 11am, then a chance of rain. Partly sunny, with a high near 49.
Thursday Night
Partly cloudy, with a low around 36.
Friday
A slight chance of rain. Snow level 5300 feet rising to 6400 feet in the afternoon. Sunny, with a high near 56.
Friday Night
Mostly clear, with a low around 39.
Saturday
A slight chance of rain. Snow level 6200 feet rising to 6900 feet in the afternoon. Mostly sunny, with a high near 58.
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ABOUT THIS FORECAST

 
Point Forecast:
15 Miles ESE Cave Junction OR
 42.07°N 123.38°W (Elev. 4656 ft)
4:41 pm PDT Apr 18, 2026
5pm PDT Apr 18, 2026-6pm PDT Apr 25, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database