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

73°F

23°C

Humidity 36%
Wind Speed SSW 4 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Last update 04 Aug 05:00 AM PDT
Extended Forecast for

10 Miles S Tracy CA

  • Today

    Today: Sunny and hot, with a high near 99. Calm wind becoming north northwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.

    High: 99 °F

    Hot

  • Tonight

    Tonight: Clear, with a low around 71. West wind 5 to 7 mph becoming calm  in the evening.

    Low: 71 °F

    Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 98. Calm wind becoming north northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 98 °F

    Hot

  • Wednesday Night

    Wednesday Night: Clear, with a low around 71. Northwest wind 5 to 9 mph becoming calm  in the evening.

    Low: 71 °F

    Clear

  • Thursday

    Thursday: Sunny and hot, with a high near 98. Calm wind becoming north northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.

    High: 98 °F

    Hot

  • Thursday Night

    Thursday Night: Clear, with a low around 73.

    Low: 73 °F

    Clear

  • Friday

    Friday: Sunny and hot, with a high near 99.

    High: 99 °F

    Hot

  • Friday Night

    Friday Night: Clear, with a low around 75.

    Low: 75 °F

    Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 101.

    High: 101 °F

    Hot

Detailed Forecast

Today
Sunny and hot, with a high near 99. Calm wind becoming north northwest 5 to 9 mph in the morning. Winds could gust as high as 18 mph.
Tonight
Clear, with a low around 71. West wind 5 to 7 mph becoming calm in the evening.
Wednesday
Sunny and hot, with a high near 98. Calm wind becoming north northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Wednesday Night
Clear, with a low around 71. Northwest wind 5 to 9 mph becoming calm in the evening.
Thursday
Sunny and hot, with a high near 98. Calm wind becoming north northwest 5 to 8 mph in the afternoon. Winds could gust as high as 18 mph.
Thursday Night
Clear, with a low around 73.
Friday
Sunny and hot, with a high near 99.
Friday Night
Clear, with a low around 75.
Saturday
Sunny and hot, with a high near 101.
Saturday Night
Clear, with a low around 75.
Sunday
Sunny and hot, with a high near 98.
Sunday Night
Clear, with a low around 70.
Monday
Sunny, with a high near 93.
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ABOUT THIS FORECAST

 
Point Forecast:
10 Miles S Tracy CA
 37.61°N 121.45°W (Elev. 1004 ft)
2:00 am PDT Aug 4, 2026
6am PDT Aug 4, 2026-6pm PDT Aug 10, 2026
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database