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

Record Breaking Temperatures and Critical Fire Weather

More than 200 record or near record maximum temperatures are forecast across the southern half of the U.S. through the end of this week before additional record temperatures center back over the Southwest U.S. into the Rockies this weekend. Widespread record breaking warmth, low humidity, and gusty winds will produce critical fire weather today in the central Rockies to Plains. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

77°F

25°C

Humidity 45%
Wind Speed W 10 MPH
Barometer NA
Dewpoint 54°F (12°C)
Visibility NA
Heat Index78°F (26°C)
Last update 25 Mar 02:28 PM PDT
Extended Forecast for

5 Miles NW Castro Valley CA

  • Tonight

    Tonight: Partly cloudy, with a low around 46. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.

    Low: 46 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 75. North wind 5 to 8 mph.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 54. North wind 5 to 8 mph becoming light and variable in the evening.

    Low: 54 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 79. Calm wind becoming northeast around 6 mph in the afternoon.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 50. West northwest wind 5 to 7 mph becoming southwest after midnight.

    Low: 50 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 50.

    Low: 50 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 79.

    High: 79 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 54.

    Low: 54 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 46. West wind 5 to 10 mph becoming light and variable after midnight. Winds could gust as high as 21 mph.
Thursday
Mostly sunny, with a high near 75. North wind 5 to 8 mph.
Thursday Night
Mostly cloudy, with a low around 54. North wind 5 to 8 mph becoming light and variable in the evening.
Friday
Partly sunny, with a high near 79. Calm wind becoming northeast around 6 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 50. West northwest wind 5 to 7 mph becoming southwest after midnight.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 50.
Sunday
Mostly sunny, with a high near 79.
Sunday Night
Partly cloudy, with a low around 54.
Monday
Mostly cloudy, with a high near 72.
Monday Night
A chance of rain. Mostly cloudy, with a low around 53.
Tuesday
Rain likely. Mostly cloudy, with a high near 65.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 50.
Wednesday
Rain likely. Mostly cloudy, with a high near 62.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Castro Valley CA
 37.77°N 122.12°W (Elev. 597 ft)
Last Update:
2:41 pm PDT Mar 25, 2026
Forecast Valid:
3pm PDT Mar 25, 2026-6pm PDT Apr 1, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation