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

Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

Lat: 37.83389°NLon: 122.06694°WElev: 1760.0ft.

NA

84°F

29°C

Humidity 35%
Wind Speed W 13 MPH
Barometer NA
Dewpoint 53°F (12°C)
Visibility NA
Heat Index83°F (28°C)
Last update 15 Aug 03:28 PM PDT
Extended Forecast for

Walnut Creek CA

  • Tonight

    Tonight: Mostly clear, with a low around 62. South southwest wind 11 to 13 mph.

    Low: 62 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 82. West southwest wind 9 to 16 mph, with gusts as high as 20 mph.

    High: 82 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 59. Southwest wind around 14 mph, with gusts as high as 18 mph.

    Low: 59 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 78. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 78 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 58. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.

    Low: 58 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Monday Night

    Monday Night: Clear, with a low around 57.

    Low: 57 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 85.

    High: 85 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 56.

    Low: 56 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 62. South southwest wind 11 to 13 mph.
Saturday
Sunny, with a high near 82. West southwest wind 9 to 16 mph, with gusts as high as 20 mph.
Saturday Night
Mostly clear, with a low around 59. Southwest wind around 14 mph, with gusts as high as 18 mph.
Sunday
Sunny, with a high near 78. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Sunday Night
Mostly clear, with a low around 58. Southwest wind 7 to 10 mph, with gusts as high as 21 mph.
Monday
Sunny, with a high near 81.
Monday Night
Clear, with a low around 57.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Clear, with a low around 56.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Mostly clear, with a low around 60.
Thursday
Sunny, with a high near 95.
Thursday Night
Clear, with a low around 60.
Friday
Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Walnut Creek CA
 37.9°N 122.07°W (Elev. 203 ft)
Last Update:
1:26 pm PDT Aug 15, 2025
Forecast Valid:
4pm PDT Aug 15, 2025-6pm PDT Aug 22, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation