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

48°F

9°C

Humidity 76%
Wind Speed W 0 MPH
Barometer NA
Dewpoint 41°F (5°C)
Visibility NA
Last update 18 Apr 11:52 PM PDT
Extended Forecast for

14 Miles SE Agness OR

  • Overnight

    Overnight: Mostly cloudy, with a low around 50. Light south wind.

    Low: 50 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 30 percent chance of rain after 5pm.  Mostly cloudy, with a high near 60. Light and variable wind becoming west southwest 5 to 8 mph in the afternoon.

    High: 60 °F

    Cloudy then
    Chance Rain

  • Sunday Night

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

    Low: 48 °F

    Chance Rain

  • Monday

    Monday: Rain, mainly after 11am.  High near 53. Calm wind becoming southwest around 6 mph in the afternoon.  Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain

  • Monday Night

    Monday Night: Rain.  Snow level 6300 feet lowering to 5400 feet after midnight . Low around 44. South 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: 44 °F

    Rain

  • Tuesday

    Tuesday: Rain likely, then showers and possibly a thunderstorm after 11am.  Snow level 5300 feet. High near 50. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 50 °F

    Showers

  • Tuesday Night

    Tuesday Night: Rain.  Snow level 5400 feet lowering to 4800 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 4700 feet. Mostly cloudy, with a high near 48.

    High: 48 °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 42.

    Low: 42 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 50. Light south wind.
Sunday
A 30 percent chance of rain after 5pm. Mostly cloudy, with a high near 60. Light and variable wind becoming west southwest 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 southwest wind 5 to 8 mph becoming calm in the evening.
Monday
Rain, mainly after 11am. High near 53. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday Night
Rain. Snow level 6300 feet lowering to 5400 feet after midnight . Low around 44. South 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 5300 feet. High near 50. 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 5400 feet lowering to 4800 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 4700 feet. Mostly cloudy, with a high near 48.
Wednesday Night
Rain likely, mainly before 11pm. Snow level 4900 feet lowering to 4200 feet after midnight . Mostly cloudy, with a low around 42.
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 58.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 65.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 65.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles SE Agness OR
 42.42°N 123.87°W (Elev. 2461 ft)
11:35 pm PDT Apr 18, 2026
12am PDT Apr 19, 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