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

66°F

19°C

Humidity 34%
Wind Speed SW 6 MPH
Barometer NA
Dewpoint 37°F (3°C)
Visibility NA
Last update 19 Apr 04:52 PM PDT
Extended Forecast for

16 Miles SE Agness OR

  • This Afternoon

    This Afternoon: A 20 percent chance of rain.  Mostly cloudy, with a high near 60. West wind around 7 mph.

    High: 60 °F

    Slight Chance
    Rain

  • Tonight

    Tonight: A 30 percent chance of rain, mainly between 4am and 5am.  Mostly cloudy, with a low around 47. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 47 °F

    Chance Rain

  • Monday

    Monday: Rain, mainly after 9am.  High near 50. East wind 5 to 7 mph becoming southwest in the afternoon.  Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.

    High: 50 °F

    Rain

  • Monday Night

    Monday Night: Rain.  Snow level 5700 feet lowering to 4900 feet after midnight . Low around 43. Southwest wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain

  • Tuesday

    Tuesday: Rain likely, then showers and possibly a thunderstorm after 11am.  Snow level 4600 feet rising to 5300 feet in the afternoon. High near 49. Calm wind becoming west around 6 mph in the afternoon.  Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 49 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain.  Snow level 5300 feet lowering to 4600 feet after midnight . Low around 43. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 43 °F

    Rain

  • Wednesday

    Wednesday: Rain.  Snow level 4300 feet rising to 4900 feet in the afternoon. High near 49. Chance of precipitation is 80%.

    High: 49 °F

    Rain

  • Wednesday Night

    Wednesday Night: A chance of rain.  Snow level 4900 feet lowering to 4000 feet after midnight . Mostly cloudy, with a low around 41.

    Low: 41 °F

    Chance Rain

  • Thursday

    Thursday: A slight chance of rain.  Snow level 3900 feet rising to 5300 feet in the afternoon. Mostly sunny, with a high near 58.

    High: 58 °F

    Slight Chance
    Rain

Detailed Forecast

This Afternoon
A 20 percent chance of rain. Mostly cloudy, with a high near 60. West wind around 7 mph.
Tonight
A 30 percent chance of rain, mainly between 4am and 5am. Mostly cloudy, with a low around 47. West wind 5 to 7 mph becoming calm in the evening.
Monday
Rain, mainly after 9am. High near 50. East wind 5 to 7 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a quarter and half of an inch possible.
Monday Night
Rain. Snow level 5700 feet lowering to 4900 feet after midnight . Low around 43. Southwest wind around 5 mph becoming calm in the evening. 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 4600 feet rising to 5300 feet in the afternoon. High near 49. Calm wind becoming west around 6 mph in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Rain. Snow level 5300 feet lowering to 4600 feet after midnight . Low around 43. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain. Snow level 4300 feet rising to 4900 feet in the afternoon. High near 49. Chance of precipitation is 80%.
Wednesday Night
A chance of rain. Snow level 4900 feet lowering to 4000 feet after midnight . Mostly cloudy, with a low around 41.
Thursday
A slight chance of rain. Snow level 3900 feet rising to 5300 feet in the afternoon. Mostly sunny, with a high near 58.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 66.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 66.
Saturday Night
Partly cloudy, with a low around 45.
Sunday
A slight chance of rain. Mostly sunny, with a high near 63.
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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 19, 2026
5pm PDT Apr 19, 2026-6pm PDT Apr 26, 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