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

DIABLO GRANDE (DBLC1)

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

NA

51°F

11°C

Humidity 83%
Wind Speed W 8 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Last update 13 Nov 05:00 PM PST
Extended Forecast for

14 Miles SSW Tracy CA

  • This Afternoon

    This Afternoon: A 30 percent chance of rain. Partly sunny, with a steady temperature around 50. West wind around 8 mph.

    High: 50 °F

    Chance Rain

  • Tonight

    Tonight: A chance of rain before 8pm, then a slight chance of rain after 3am. Partly cloudy, with a low around 38. Southwest wind 5 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance Rain

  • Saturday

    Saturday: Increasing clouds, with a high near 53. Calm wind becoming north northeast around 5 mph.

    High: 53 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 40. South southwest wind 3 to 6 mph.

    Low: 40 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 55. South wind around 9 mph, with gusts as high as 20 mph.

    High: 55 °F

    Slight Chance
    Rain

  • Sunday Night

    Sunday Night: Rain, mainly before 4am. Low around 41. Chance of precipitation is 100%.

    Low: 41 °F

    Rain

  • Monday

    Monday: A 40 percent chance of rain, mainly before 10am. Mostly sunny, with a high near 48.

    High: 48 °F

    Chance Rain

  • Monday Night

    Monday Night: Partly cloudy, with a low around 35.

    Low: 35 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 48.

    High: 48 °F

    Sunny

Detailed Forecast

This Afternoon
A 30 percent chance of rain. Partly sunny, with a steady temperature around 50. West wind around 8 mph.
Tonight
A chance of rain before 8pm, then a slight chance of rain after 3am. Partly cloudy, with a low around 38. Southwest wind 5 to 8 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Increasing clouds, with a high near 53. Calm wind becoming north northeast around 5 mph.
Saturday Night
Mostly cloudy, with a low around 40. South southwest wind 3 to 6 mph.
Sunday
A 20 percent chance of rain after 10am. Mostly cloudy, with a high near 55. South wind around 9 mph, with gusts as high as 20 mph.
Sunday Night
Rain, mainly before 4am. Low around 41. Chance of precipitation is 100%.
Monday
A 40 percent chance of rain, mainly before 10am. Mostly sunny, with a high near 48.
Monday Night
Partly cloudy, with a low around 35.
Tuesday
Sunny, with a high near 48.
Tuesday Night
A chance of rain after 10pm. Partly cloudy, with a low around 35.
Wednesday
Rain. Cloudy, with a high near 46.
Wednesday Night
Rain. Mostly cloudy, with a low around 35.
Thursday
A chance of rain. Partly sunny, with a high near 45.
Thursday Night
A slight chance of rain. Partly cloudy, with a low around 33.
Friday
Sunny, with a high near 46.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
14 Miles SSW Tracy CA
 37.56°N 121.49°W (Elev. 2598 ft)
Last Update:
1:01 pm PST Nov 13, 2026
Forecast Valid:
5pm PST Nov 13, 2026-6pm PST Nov 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation