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

67°F

19°C

Humidity 26%
Wind Speed SW 3 MPH
Barometer NA
Dewpoint 31°F (-1°C)
Visibility NA
Last update 18 Apr 06:52 PM PDT
Extended Forecast for

16 Miles SE Agness OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. Light and variable wind.

    Low: 49 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 62. Light and variable wind becoming west 5 to 9 mph in the morning.

    High: 62 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 30 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 49. West wind 5 to 9 mph becoming light and variable  after midnight.

    Low: 49 °F

    Chance Rain

  • Monday

    Monday: Rain, mainly after 11am.  High near 55. Light and variable wind becoming southwest 5 to 9 mph in the morning.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 55 °F

    Rain

  • Monday Night

    Monday Night: Rain.  Low around 46. Southwest wind 5 to 8 mph becoming light and variable  in the evening.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain

  • Tuesday

    Tuesday: Rain likely, then showers and possibly a thunderstorm after 11am.  Snow level 5600 feet. High near 51. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 51 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain.  Snow level 5500 feet lowering to 4800 feet after midnight . Low around 44. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 44 °F

    Rain

  • Wednesday

    Wednesday: Rain.  Snow level 4700 feet. Cloudy, with a high near 47.

    High: 47 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 11pm.  Snow level 4800 feet lowering to 4000 feet after midnight . Mostly cloudy, with a low around 41.

    Low: 41 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 49. Light and variable wind.
Sunday
Mostly cloudy, with a high near 62. Light and variable wind becoming west 5 to 9 mph in the morning.
Sunday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 49. West wind 5 to 9 mph becoming light and variable after midnight.
Monday
Rain, mainly after 11am. High near 55. Light and variable wind becoming southwest 5 to 9 mph in the morning. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Low around 46. Southwest wind 5 to 8 mph becoming light and variable in the evening. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Rain likely, then showers and possibly a thunderstorm after 11am. Snow level 5600 feet. High near 51. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
Rain. Snow level 5500 feet lowering to 4800 feet after midnight . Low around 44. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
Rain. Snow level 4700 feet. Cloudy, with a high near 47.
Wednesday Night
Rain likely, mainly before 11pm. Snow level 4800 feet lowering to 4000 feet after midnight . Mostly cloudy, with a low around 41.
Thursday
A chance of rain. Snow level 3900 feet rising to 5100 feet in the afternoon. Partly sunny, with a high near 55.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 45.
Saturday
A slight chance of rain. Mostly sunny, with a high near 64.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.4°N 123.83°W (Elev. 2582 ft)
4:41 pm PDT Apr 18, 2026
7pm 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