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

Tropical Moisture Brings Slight Risk of Excessive Rainfall to the Southwest; Strong to Locally Severe Storms on the Plains

Heavy rain and flash flooding are possible across portions of the Southwest through Friday, where Flood Watches are in effect. Strong to locally severe thunderstorms are possible today across portions of the Plains. A tropical wave is causing heavy rainfall in Puerto Rico and the Virgin Islands, which may cause urban and small stream flooding and landslides today. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

69°F

21°C

Humidity 55%
Wind Speed W 10 MPH
Barometer NA
Dewpoint 52°F (11°C)
Visibility NA
Last update 18 Sep 04:28 PM PDT
Extended Forecast for

3 Miles NW Danville CASimilar City Names

  • This Afternoon

    This Afternoon: A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 83. Southwest wind around 7 mph.

    High: 83 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    Showers

  • Friday

    Friday: A 30 percent chance of showers before 11am. Mostly sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.

    High: 85 °F

    Chance
    Showers then
    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 60. West wind around 6 mph becoming calm in the evening.

    Low: 60 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 87. Calm wind becoming west around 6 mph in the afternoon.

    High: 87 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 60.

    Low: 60 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 89.

    High: 89 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 60.

    Low: 60 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 96.

    High: 96 °F

    Hot

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Mostly cloudy, with a steady temperature around 83. Southwest wind around 7 mph.
Tonight
A slight chance of showers and thunderstorms, then a chance of showers after 8pm. Mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A 30 percent chance of showers before 11am. Mostly sunny, with a high near 85. Calm wind becoming west around 5 mph in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Mostly clear, with a low around 60. West wind around 6 mph becoming calm in the evening.
Saturday
Sunny, with a high near 87. Calm wind becoming west around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 60.
Sunday
Sunny, with a high near 89.
Sunday Night
Clear, with a low around 60.
Monday
Sunny and hot, with a high near 96.
Monday Night
Mostly clear, with a low around 63.
Tuesday
A slight chance of showers. Mostly sunny, with a high near 88.
Tuesday Night
A slight chance of showers. Partly cloudy, with a low around 62.
Wednesday
Sunny, with a high near 84.
Wednesday Night
Mostly clear, with a low around 59.
Thursday
Sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NW Danville CASimilar City Names
 37.86°N 122.03°W (Elev. 397 ft)
Last Update:
1:26 pm PDT Sep 18, 2025
Forecast Valid:
4pm PDT Sep 18, 2025-6pm PDT Sep 25, 2025
 
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