Heat Wave Persists Over the Central U.S.; Significant Flooding Expected in the Northern Mid-Atlantic Tuesday

Dangerous and extreme heat will remain across portions of the Central U.S. this week, persisting across the Mid to Lower Mississippi Valleys, Gulf Coast, Southern Plains and portions of Texas. A heat wave over the Southwest will intensify late this week. Severe thunderstorms and flash flooding will spread from the Great Lakes/Ohio Valley to the Mid-Atlantic and Northeast the next few days. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

Lat: 37.32927° N Lon: 121.29538° W Elev: 1861.0 ft.

NA

76°F

24°C

Humidity 20%
Wind Speed SW 2 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Heat Index76°F (24°C)
Last update 27 Jul 09:00 PM PDT
Detailed forecast for

Western Stanislaus County Below 1000 ft Including Interstate 5

Tonight
Clear. Lows around 60. Northwest winds up to 10 mph with gusts to around 20 mph.
Tuesday
Sunny. Highs 91 to 97. North winds up to 10 mph with gusts to around 20 mph.
Tuesday Night
Clear. Lows around 62. West winds up to 10 mph with gusts to around 20 mph.
Wednesday
Sunny. Highs 94 to 100. Northwest winds up to 10 mph.
Wednesday Night
Clear. Lows around 65. West winds up to 10 mph with gusts to around 20 mph.
Thursday
Sunny. Highs 96 to 102.
Thursday Night
Clear. Lows 62 to 68.
Friday Through Monday
Clear. Highs 98 to 105. Lows 62 to 70.



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800 PM PDT Mon Jul 27 2026
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database