Powerful Winter Storm from the Upper Midwest into the Northeast; Severe Thunderstorms in the Midwest and Ohio Valley

A rapidly-intensifying storm is expected to bring heavy snow, blizzard conditions, and icing from the Upper Midwest through the Great Lakes and Northeast. Scattered severe thunderstorms may produce severe/damaging wind gusts and a couple of tornadoes across parts of the Midwest and lower Ohio Valley through the evening. Arctic air will expand across the central and southern U.S.. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

48°F

9°C

Humidity 45%
Wind Speed E 9 MPH
Barometer NA
Dewpoint 27°F (-3°C)
Visibility NA
Wind Chill44°F (7°C)
Last update 28 Dec 10:28 AM PST
Extended Forecast for

5 Miles NW Castro Valley CA

  • Today

    Today: Sunny, with a high near 54. North northeast wind around 6 mph.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 38. Northeast wind around 6 mph.

    Low: 38 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 55. Northeast wind around 7 mph.

    High: 55 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 36. East northeast wind around 5 mph.

    Low: 36 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy frost before 7am.  Otherwise, sunny, with a high near 56. East northeast wind around 7 mph.

    High: 56 °F

    Patchy Frost
    then Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 39.

    Low: 39 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 10 percent chance of rain after 4pm.  Partly sunny, with a high near 53.

    High: 53 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Wednesday Night

    Wednesday Night: A chance of rain, mainly after 10pm.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • New Year's Day

    New Year's Day: Rain likely, mainly after 10am.  Mostly cloudy, with a high near 54.

    High: 54 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 54. North northeast wind around 6 mph.
Tonight
Mostly clear, with a low around 38. Northeast wind around 6 mph.
Monday
Sunny, with a high near 55. Northeast wind around 7 mph.
Monday Night
Mostly clear, with a low around 36. East northeast wind around 5 mph.
Tuesday
Patchy frost before 7am. Otherwise, sunny, with a high near 56. East northeast wind around 7 mph.
Tuesday Night
Partly cloudy, with a low around 39.
Wednesday
A 10 percent chance of rain after 4pm. Partly sunny, with a high near 53.
Wednesday Night
A chance of rain, mainly after 10pm. Mostly cloudy, with a low around 43.
New Year's Day
Rain likely, mainly after 10am. Mostly cloudy, with a high near 54.
Thursday Night
Rain likely. Cloudy, with a low around 47.
Friday
Rain likely. Mostly cloudy, with a high near 56.
Friday Night
A chance of rain. Mostly cloudy, with a low around 47.
Saturday
A chance of rain. Mostly cloudy, with a high near 56.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Castro Valley CA
 37.77°N 122.12°W (Elev. 597 ft)
6:40 am PST Dec 28, 2025
11am PST Dec 28, 2025-6pm PST Jan 3, 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