Dangerous Heat in the Central and Eastern U.S.; Severe Thunderstorms in the Central U.S. and Northeast; Critical Fire Weather in the Four Corners

Dangerous, record-breaking heat will intensify across most of the central and eastern U.S this week. Heat indices will likely exceed 100 degrees. Severe thunderstorms are forecast from parts of the central High Plains into the Upper Midwest, and across parts of the Northeast. Critical fire weather conditions will continue across portions of the Four Corners and Great Basin. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

Lat: 42.10386° N Lon: 123.68519° W Elev: 1389.0 ft.

NA

78°F

26°C

Humidity 28%
Wind Speed NNE 8 MPH
Barometer NA
Dewpoint 42°F (6°C)
Visibility NA
Heat Index78°F (26°C)
Last update 30 Jun 02:52 PM PDT
Detailed forecast for

Eastern Curry County and Josephine County

Tonight
Mostly clear this evening then becoming partly cloudy. Lows in the mid 40s to lower 50s. North winds 5 to 10 mph in the valleys and north 10 to 15 mph at higher elevations.
Wednesday
Sunny. Highs in the mid 60s to mid 70s. North winds 5 to 10 mph in the valleys and north 10 to 15 mph at higher elevations.
Wednesday Night
Partly cloudy in the evening then clearing. Lows in the mid 40s to lower 50s. North winds 5 to 10 mph in the valleys and north 10 to 15 mph at higher elevations.
Thursday
Sunny in the morning then becoming partly cloudy. Highs in the lower 70s to lower 80s. North winds 5 to 10 mph.
Thursday Night
Mostly clear. Lows in the lower to mid 50s. North winds 5 to 10 mph.
Friday
Sunny. Highs in the mid 70s to mid 80s.
Friday Night Through Saturday Night
Clear. Lows in the lower to mid 50s. Highs in the mid 70s to mid 80s.
Sunday Through Tuesday
Mostly clear. Highs in the mid 70s to mid 80s. Lows in the lower to mid 50s.



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240 PM PDT Tue Jun 30 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database