Severe Weather and Flash Flooding Potential for the Center of the Nation

An upper level trough coinciding with surface frontal boundaries will focus showers and thunderstorms from the Great Lakes region into the Ohio and Tennessee Valley's, central and southern Plains. Instances of flash flooding, damaging winds and large hail are possible. Meanwhile, increasing waves and rip currents for portions of the eastern seaboard this week as tropical Atlantic is active. Read More >

Current conditions at

DIABLO GRANDE (DBLC1)

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

NA

84°F

29°C

Humidity 27%
Wind Speed SSE 2 MPH
Barometer NA
Dewpoint 46°F (8°C)
Visibility NA
Heat Index82°F (28°C)
Last update 22 Sep 10:00 AM PDT
Extended Forecast for

16 Miles SW Modesto CA

  • Today

    Today: Sunny, with a high near 91. North wind around 7 mph.

    High: 91 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 69. Light west wind.

    Low: 69 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 95. Calm wind becoming north around 6 mph in the afternoon.

    High: 95 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 69. North northwest wind around 6 mph becoming calm  after midnight.

    Low: 69 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: A 40 percent chance of showers.  Partly sunny, with a high near 84. Light and variable wind becoming north northwest around 6 mph in the afternoon.

    High: 84 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers, mainly before 11pm.  Mostly cloudy, with a low around 65.

    Low: 65 °F

    Chance
    Showers

  • Thursday

    Thursday: Sunny, with a high near 86.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 62.

    Low: 62 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 87.

    High: 87 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 91. North wind around 7 mph.
Tonight
Clear, with a low around 69. Light west wind.
Tuesday
Sunny, with a high near 95. Calm wind becoming north around 6 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 69. North northwest wind around 6 mph becoming calm after midnight.
Wednesday
A 40 percent chance of showers. Partly sunny, with a high near 84. Light and variable wind becoming north northwest around 6 mph in the afternoon.
Wednesday Night
A 30 percent chance of showers, mainly before 11pm. Mostly cloudy, with a low around 65.
Thursday
Sunny, with a high near 86.
Thursday Night
Mostly clear, with a low around 62.
Friday
Sunny, with a high near 87.
Friday Night
Mostly clear, with a low around 64.
Saturday
Sunny, with a high near 88.
Saturday Night
Mostly clear, with a low around 62.
Sunday
Sunny, with a high near 86.
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ABOUT THIS FORECAST

 
Point Forecast:
16 Miles SW Modesto CA
 37.47°N 121.19°W (Elev. 269 ft)
10:22 am PDT Sep 22, 2025
11am PDT Sep 22, 2025-6pm PDT Sep 28, 2025
 
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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