National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Areas of Severe Thunderstorms and Heat

Scattered severe thunderstorms and excessive rainfall are possible today in the Mid Atlantic, posing a risk for damaging winds and isolated flash flooding. Extreme Heat Warnings are in effect today for northeast Texas into southern Oklahoma and Arkansas. Extreme Heat Warnings are also in effect for the Desert Southwest today into Sunday. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

Lat: 37.32927°NLon: 121.29538°WElev: 1861.0ft.

NA

90°F

32°C

Humidity 23%
Wind Speed ENE 10 MPH
Barometer NA
Dewpoint 47°F (8°C)
Visibility NA
Heat Index87°F (31°C)
Last update 20 Aug 03:00 PM PDT
Extended Forecast for

15 Miles SSW Tracy CA

  • Tonight

    Tonight: Partly cloudy, with a low around 57. Southwest wind around 6 mph.

    Low: 57 °F

    Partly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 83. Southwest wind 5 to 8 mph becoming north in the morning.

    High: 83 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming clear, with a low around 53. Southwest wind around 7 mph.

    Low: 53 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Sunny, with a high near 82. Southwest wind 7 to 10 mph becoming northwest in the morning. Winds could gust as high as 20 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55. Southwest wind 5 to 9 mph.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 84.

    High: 84 °F

    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 82.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Tonight
Partly cloudy, with a low around 57. Southwest wind around 6 mph.
Friday
Partly sunny, with a high near 83. Southwest wind 5 to 8 mph becoming north in the morning.
Friday Night
Mostly cloudy, then gradually becoming clear, with a low around 53. Southwest wind around 7 mph.
Saturday
Sunny, with a high near 82. Southwest wind 7 to 10 mph becoming northwest in the morning. Winds could gust as high as 20 mph.
Saturday Night
Mostly clear, with a low around 55. Southwest wind 5 to 9 mph.
Sunday
Sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 57.
Monday
Sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 54.
Tuesday
Mostly sunny, with a high near 82.
Tuesday Night
Partly cloudy, with a low around 55.
Wednesday
Sunny, with a high near 85.
Wednesday Night
Mostly clear, with a low around 57.
Thursday
Sunny, with a high near 85.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
15 Miles SSW Tracy CA
 37.55°N 121.52°W (Elev. 2635 ft)
Last Update:
2:00 pm PDT Aug 20, 2026
Forecast Valid:
3pm PDT Aug 20, 2026-6pm PDT Aug 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation