
Heat Persists in the Southwest; Elevated to Critical Fire Weather in the Great Basin; Poor Air Quality in the West
Dangerous heat will persist across the Southwest U.S. through this week, easing by next week. The heat will focus further east in the Great Plains and Mississippi Valley beginning next week. Elevated to locally critical fire weather conditions will persist for the Great Basin today. Poor air quality lingers for the Northwest, Great Basin, Central Rockies into the Plains. Read More >
Current conditions at
DIABLO GRANDE (DBLC1)
Lat: 37.32927°NLon: 121.29538°WElev: 1861.0ft.NA
94°F
34°C
| Humidity | 23% |
| Wind Speed | ENE 9 MPH |
| Barometer | NA |
| Dewpoint | 51°F (11°C) |
| Visibility | NA |
| Heat Index | 91°F (33°C) |
| Last update | 04 Aug 01:00 PM PDT |
Extended Forecast for
19 Miles SW Modesto CA
This Afternoon

High: 96 °F
Hot
Tonight

Low: 73 °F
Clear
Wednesday

High: 93 °F
Sunny
Wednesday Night

Low: 67 °F
Clear
Thursday

High: 94 °F
Sunny
Thursday Night

Low: 70 °F
Clear
Friday

High: 97 °F
Hot
Friday Night

Low: 72 °F
Clear
Saturday

High: 98 °F
Hot
Detailed Forecast
This Afternoon
Sunny and hot, with a high near 96. North wind around 7 mph.
Tonight
Clear, with a low around 73. North wind around 6 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 93. Calm wind becoming north northeast 5 to 8 mph in the morning.
Wednesday Night
Clear, with a low around 67. North wind 5 to 7 mph becoming calm in the evening.
Thursday
Sunny, with a high near 94. Light and variable wind becoming north 5 to 7 mph in the afternoon.
Thursday Night
Clear, with a low around 70.
Friday
Sunny and hot, with a high near 97.
Friday Night
Clear, with a low around 72.
Saturday
Sunny and hot, with a high near 98.
Saturday Night
Mostly clear, with a low around 72.
Sunday
Sunny and hot, with a high near 97.
Sunday Night
Clear, with a low around 72.
Monday
Sunny, with a high near 93.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
19 Miles SW Modesto CA
37.44°N 121.24°W (Elev. 1299 ft)
37.44°N 121.24°W (Elev. 1299 ft)
11:31 am PDT Aug 4, 2026
1pm PDT Aug 4, 2026-6pm PDT Aug 10, 2026


