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

55°F

13°C

Humidity 48%
Wind Speed NW 1 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 18 Apr 09:52 PM PDT
Extended Forecast for

16 Miles SE Agness OR

  • Tonight

    Tonight: Mostly cloudy, with a low around 51. Light and variable wind.

    Low: 51 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly cloudy, with a high near 68. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 68 °F

    Mostly Cloudy

  • Sunday Night

    Sunday Night: A 30 percent chance of rain, mainly after 11pm.  Mostly cloudy, with a low around 49. West northwest wind 5 to 8 mph becoming calm  in the evening.

    Low: 49 °F

    Chance Rain

  • Monday

    Monday: Rain, mainly after 11am.  High near 61. 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: 61 °F

    Rain

  • Monday Night

    Monday Night: Rain.  Low around 47. 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: 47 °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.  Cloudy, with a high near 53.

    High: 53 °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 43.

    Low: 43 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 51. Light and variable wind.
Sunday
Mostly cloudy, with a high near 68. Calm wind becoming west 5 to 8 mph in the afternoon.
Sunday Night
A 30 percent chance of rain, mainly after 11pm. Mostly cloudy, with a low around 49. West northwest wind 5 to 8 mph becoming calm in the evening.
Monday
Rain, mainly after 11am. High near 61. 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 47. 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. Cloudy, with a high near 53.
Wednesday Night
Rain likely, mainly before 11pm. Snow level 4800 feet lowering to 4000 feet after midnight . Mostly cloudy, with a low around 43.
Thursday
A chance of rain. Snow level 3900 feet rising to 5100 feet in the afternoon. Partly sunny, with a high near 61.
Thursday Night
Mostly clear, with a low around 43.
Friday
Sunny, with a high near 68.
Friday Night
Mostly clear, with a low around 46.
Saturday
A slight chance of rain. Mostly sunny, with a high near 70.
Basemap Options
Click map to change the forecast location
Loading map...

ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SE Agness OR
 42.38°N 123.82°W (Elev. 1316 ft)
10:41 pm PDT Apr 18, 2026
10pm PDT Apr 18, 2026-6pm PDT Apr 25, 2026
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database