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

49°F

9°C

Humidity 67%
Wind Speed NW 0 MPH
Barometer NA
Dewpoint 38°F (3°C)
Visibility NA
Last update 18 Apr 10:52 PM PDT
Extended Forecast for

16 Miles SE Agness OR

  • Tonight

    Tonight: Mostly cloudy, with a steady temperature around 54. Light east wind.

    Low: 54 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 10 percent chance of rain after 5pm.  Mostly cloudy, with a high near 67. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 67 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Sunday Night

    Sunday Night: A 30 percent chance of rain, mainly after 4am.  Mostly cloudy, with a low around 48. West northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 48 °F

    Chance Rain

  • Monday

    Monday: Rain, mainly after 11am.  High near 59. Calm wind becoming southeast around 6 mph in the morning.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 59 °F

    Rain

  • Monday Night

    Monday Night: Rain.  Low around 46. West southwest wind 3 to 5 mph.  Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Rain

  • Tuesday

    Tuesday: Rain likely, then showers and possibly a thunderstorm after 11am.  High near 56. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain.  Low around 45. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 45 °F

    Rain

  • Wednesday

    Wednesday: Rain.  Mostly cloudy, with a high near 53.

    High: 53 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely, mainly before 11pm.  Snow level 4900 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 43.

    Low: 43 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly cloudy, with a steady temperature around 54. Light east wind.
Sunday
A 10 percent chance of rain after 5pm. Mostly cloudy, with a high near 67. Calm wind becoming west 5 to 8 mph in the afternoon.
Sunday Night
A 30 percent chance of rain, mainly after 4am. Mostly cloudy, with a low around 48. West northwest wind 5 to 8 mph becoming calm in the evening.
Monday
Rain, mainly after 11am. High near 59. Calm wind becoming southeast around 6 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. West southwest wind 3 to 5 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. High near 56. 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. Low around 45. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Wednesday
Rain. Mostly cloudy, with a high near 53.
Wednesday Night
Rain likely, mainly before 11pm. Snow level 4900 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 43.
Thursday
A chance of rain, mainly before 11am. Snow level 4100 feet rising to 5300 feet in the afternoon. Mostly sunny, with a high near 63.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 46.
Saturday
Sunny, with a high near 70.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.38°N 123.82°W (Elev. 1316 ft)
11:35 pm PDT Apr 18, 2026
11pm 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