Rapid Warm-Up Forecast Across Much of the Lower 48 Today and Tuesday
Most of the U.S. starts the week calm and unseasonably warm. The Heartland will be warmest, with highs 25–30° above average. Only the Gulf Coast stays chilly. Rain today is limited to western Washington while lake effect snow continues east of Lake Ontario. Cooler air returns after Tuesday, bringing a wintry mix to the Midwest and Northeast by Wednesday. Read More >
Hazardous Weather Conditions
Current conditions at
ILLINOIS VALLEY AIRPORT (SBFO3)
Lat: 42.10375°NLon: 123.68508°WElev: 1389.0ft.NA
37°F
3°C
| Humidity | 97% |
| Wind Speed | W 2 MPH |
| Barometer | NA |
| Dewpoint | 36°F (2°C) |
| Visibility | NA |
| Last update | 12 Jan 02:52 PM PST |
Extended Forecast for
11 Miles NNE Happy Camp CA
Freezing Fog Advisory January 13, 02:00am until January 13, 11:00am
Tonight
Low: 39 °F
Mostly Clear
Tuesday
High: 51 °F
Sunny
Tuesday Night
Low: 39 °F
Clear
Wednesday
High: 52 °F
Sunny
Wednesday Night
Low: 36 °F
Clear
Thursday
High: 51 °F
Sunny
Thursday Night
Low: 35 °F
Clear
Friday
High: 51 °F
Sunny
Friday Night
Low: 36 °F
Clear
Detailed Forecast
Tonight
Mostly clear, with a low around 39. South wind around 7 mph.
Tuesday
Sunny, with a high near 51. Southwest wind 5 to 7 mph.
Tuesday Night
Clear, with a low around 39. South wind 5 to 7 mph.
Wednesday
Sunny, with a high near 52. Northeast wind 8 to 13 mph, with gusts as high as 20 mph.
Wednesday Night
Clear, with a low around 36. East northeast wind around 11 mph.
Thursday
Sunny, with a high near 51.
Thursday Night
Clear, with a low around 35.
Friday
Sunny, with a high near 51.
Friday Night
Clear, with a low around 36.
Saturday
Sunny, with a high near 52.
Saturday Night
Mostly clear, with a low around 38.
Sunday
Sunny, with a high near 52.
Sunday Night
Mostly clear, with a low around 38.
M.L.King Day
Mostly sunny, with a high near 51.
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
11 Miles NNE Happy Camp CA
41.95°N 123.28°W (Elev. 4839 ft)
41.95°N 123.28°W (Elev. 4839 ft)
2:56 pm PST Jan 12, 2026
3pm PST Jan 12, 2026-6pm PST Jan 19, 2026
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