October Heat Wave in California; Tropical Cyclone Possible in the Gulf

Much higher than typical October temperatures will continue across coastal southern California up through the Bay Area and Central Valley through midweek resulting in result in Major to Extreme HeatRisk. A tropical depression is likely to form over the Gulf of America during the middle part of this week with further strengthening possible as it moves northeastward later this week. Read More >

Current conditions at

ILLINOIS VALLEY AIRPORT (SBFO3)

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

NA

53°F

12°C

Humidity 75%
Wind Speed SSW 0 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 06 Oct 12:52 AM PDT
Detailed forecast for

Eastern Curry County and Josephine County

Tonight
Clear. Lows in the mid 50s to lower 60s. In the valleys, north winds around 5 mph until well after midnight becoming light. At higher elevations, northeast winds 5 to 10 mph shifting to the east well after midnight.
Tuesday
Sunny. Highs in the lower 80s to lower 90s. In the valleys, light winds becoming north around 5 mph in the afternoon. At higher elevations, north winds around 5 mph.
Tuesday Night
Clear. Lows in the mid 50s to lower 60s. In the valleys, north winds around 5 mph early in the evening becoming light. At higher elevations, northeast winds 5 to 10 mph.
Wednesday
Sunny. Highs in the mid 80s to lower 90s. In the valleys, light winds becoming north around 5 mph late in the afternoon. At higher elevations, northeast winds 5 to 10 mph shifting to the north late in the afternoon.
Wednesday Night
Clear. Lows in the mid 50s to lower 60s. In the valleys, north winds around 5 mph until well after midnight becoming light. At higher elevations, north winds 5 to 10 mph shifting to the northeast well after midnight.
Thursday And Thursday Night
Clear. Highs in the mid 80s to mid 90s. Lows in the mid 50s to lower 60s.
Friday And Friday Night
Mostly clear. Not as warm. Highs in the mid 70s to mid 80s. Lows in the lower 50s to lower 60s.
Saturday Through Sunday
Mostly clear. Cooler. Highs in the lower 60s to lower 70s. Lows in the mid 40s to mid 50s.
Sunday Night And Columbus Day
Clear. Lows in the lower 40s to lower 50s. Highs in the mid 60s to mid 70s.



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239 PM PDT Mon Oct 5 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database