
Severe Weather Possible from the Central Plains to the Northeast; Building Heat in the West; Fire Weather Concerns for the Southwest
Severe thunderstorms will be possible from the central Plains to the Mid-Atlantic and Northeast on Monday. Hazardous heat will linger across the southern U.S. and build across the West through mid-week. Hot and dry conditions will fuel fire weather concerns for Interior Alaska and the Four Corners region through Monday. Read More >
Hazardous Weather Conditions
Current conditions at
ILLINOIS VALLEY AIRPORT (SBFO3)
Lat: 42.10386°NLon: 123.68519°WElev: 1389.0ft.NA
84°F
29°C
| Humidity | 15% |
| Wind Speed | N 7 MPH |
| Barometer | NA |
| Dewpoint | 32°F (0°C) |
| Visibility | NA |
| Heat Index | 81°F (27°C) |
| Last update | 21 Jun 07:52 PM PDT |
Extended Forecast for
17 Miles WNW Illinois Valley OR
Heat Advisory June 22, 11:00am until June 23, 11:00pm
Tonight

Low: 57 °F
Clear
Monday

High: 78 °F
Sunny
Monday Night

Low: 60 °F
Mostly Clear
Tuesday

High: 77 °F
Sunny
Tuesday Night

Low: 61 °F
Clear
Wednesday

High: 76 °F
Sunny
Wednesday Night

Low: 56 °F
Clear
Thursday

High: 68 °F
Mostly Sunny
Thursday Night

Low: 51 °F
Chance Rain
Detailed Forecast
Tonight
Clear, with a low around 57. North northeast wind 7 to 13 mph becoming east after midnight. Winds could gust as high as 20 mph.
Monday
Sunny, with a high near 78. East wind 5 to 8 mph becoming calm.
Monday Night
Mostly clear, with a low around 60. North northwest wind 6 to 10 mph becoming east northeast after midnight.
Tuesday
Sunny, with a high near 77. East northeast wind 6 to 11 mph becoming northwest in the afternoon.
Tuesday Night
Clear, with a low around 61. Northwest wind 10 to 14 mph becoming northeast after midnight. Winds could gust as high as 18 mph.
Wednesday
Sunny, with a high near 76.
Wednesday Night
Clear, with a low around 56.
Thursday
Mostly sunny, with a high near 68.
Thursday Night
A chance of rain, mainly after 11pm. Mostly cloudy, with a low around 51.
Friday
A slight chance of rain. Partly sunny, with a high near 54.
Friday Night
A chance of rain. Mostly cloudy, with a low around 49.
Saturday
A slight chance of rain. Mostly sunny, with a high near 57.
Saturday Night
Mostly clear, with a low around 46.
Sunday
Sunny, with a high near 63.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
17 Miles WNW Illinois Valley OR
42.2°N 123.98°W (Elev. 3786 ft)
42.2°N 123.98°W (Elev. 3786 ft)
4:40 pm PDT Jun 21, 2026
8pm PDT Jun 21, 2026-6pm PDT Jun 28, 2026



