Strong to Severe Thunderstorms Continue Tonight in the East; Early Heat Wave in the West

Scattered strong to severe storms with damaging winds and potentially a tornado or two are expected tonight from the coastal Carolinas into the Mid-Atlantic states. An anomalously early heat wave will continue to intensify and expand across the West and Southwest as the week progresses. Numerous daily and potentially monthly record highs are expected to be broken. Read More >

Hazardous Weather Conditions

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

75°F

24°C

Humidity 35%
Wind Speed N 3 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 17 Mar 01:28 AM PDT
Extended Forecast for

5 Miles NW Castro Valley CA

Heat Advisory March 17, 02:36am until March 20, 08:00pm
Click here for hazard details and duration
Heat Advisory
  •  
    Heat Advisory March 17, 02:36am until March 20, 08:00pm

    NOW until 8:00pm Fri

    Heat Advisory

  • Overnight

    Low: 58 °F

    Clear

  • Tuesday

    Tuesday: Sunny, with a high near 89. Calm wind becoming north northeast around 6 mph in the afternoon.

    High: 89 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Clear, with a low around 59. North wind around 5 mph becoming calm  in the evening.

    Low: 59 °F

    Clear

  • Wednesday

    Wednesday: Sunny, with a high near 90. Calm wind becoming north northwest around 6 mph in the afternoon.

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60. Northwest wind around 6 mph becoming calm  in the evening.

    Low: 60 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 90.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 62.

    Low: 62 °F

    Clear

  • Friday

    Friday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Overnight
Clear, with a low around 58. Calm wind.
Tuesday
Sunny, with a high near 89. Calm wind becoming north northeast around 6 mph in the afternoon.
Tuesday Night
Clear, with a low around 59. North wind around 5 mph becoming calm in the evening.
Wednesday
Sunny, with a high near 90. Calm wind becoming north northwest around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 60. Northwest wind around 6 mph becoming calm in the evening.
Thursday
Sunny, with a high near 90.
Thursday Night
Clear, with a low around 62.
Friday
Sunny, with a high near 91.
Friday Night
Mostly clear, with a low around 60.
Saturday
Sunny, with a high near 83.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 75.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 71.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Castro Valley CA
 37.77°N 122.12°W (Elev. 597 ft)
1:54 am PDT Mar 17, 2026
2am PDT Mar 17, 2026-6pm PDT Mar 23, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database