Major Winter Storm Ongoing in the Upper Midwest and Great Lakes; Severe Weather Along the East Coast

A major winter storm will continue to bring blizzard conditions, heavy snowfall, icing, and strong winds through today across the Upper Midwest and Upper Great Lakes. Widespread severe storms are expected across the entire eastern U.S. with the highest threat over the interior Mid-Atlantic, where there is a risk for damaging wind gusts and a few tornadoes. Heat continues to build in the West. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

71°F

22°C

Humidity 33%
Wind Speed E 16 MPH
Barometer NA
Dewpoint 40°F (4°C)
Visibility NA
Last update 16 Mar 12:28 PM PDT
Extended Forecast for

5 Miles NW Castro Valley CA

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

    NOW until 8:00pm Fri

    Heat Advisory

  • This Afternoon

    High: 86 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 58. West northwest wind around 5 mph becoming calm  in the evening.

    Low: 58 °F

    Mostly 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. Light and variable wind.

    Low: 59 °F

    Clear

  • Wednesday

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

    High: 90 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 60.

    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

Detailed Forecast

This Afternoon
Sunny, with a high near 86. North wind around 7 mph.
Tonight
Mostly clear, with a low around 58. West northwest wind around 5 mph becoming calm in the evening.
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. Light and variable wind.
Wednesday
Sunny, with a high near 90. Calm wind becoming north around 6 mph in the afternoon.
Wednesday Night
Clear, with a low around 60.
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.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Castro Valley CA
 37.77°N 122.12°W (Elev. 597 ft)
1:25 pm PDT Mar 16, 2026
1pm PDT Mar 16, 2026-6pm PDT Mar 22, 2026
 
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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