Snow Squalls May Impact the Northeast on Thursday; Dangerously Cold Arctic Air Impact the North-Central US

Snow showers and snow squalls are likely to develop across the Northeast on Thursday. Lake effect snow will persist downwind of the Great Lakes. An arctic blast will bring frigid temperatures, gusty winds and dangerous wind chills to the Northern Plains before expanding to the South and East. A major winter storm will begin impacting the Southern Plains and Lower Mississippi Valley Friday. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

52°F

11°C

Humidity 54%
Wind Speed ESE 3 MPH
Barometer NA
Dewpoint 36°F (2°C)
Visibility NA
Last update 21 Jan 04:28 PM PST
Extended Forecast for

5 Miles NW Castro Valley CA

  • Tonight

    Tonight: Mostly cloudy, with a low around 46. Calm wind.

    Low: 46 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 60. Calm wind becoming west around 6 mph in the afternoon.

    High: 60 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Patchy fog after 1am.  Otherwise, increasing clouds, with a low around 46. South southwest wind 3 to 5 mph.

    Low: 46 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Patchy fog before 10am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 58. Calm wind becoming north around 6 mph in the afternoon.

    High: 58 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 42. Light northwest wind.

    Low: 42 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 40.

    Low: 40 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 58.

    High: 58 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 42.

    Low: 42 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 46. Calm wind.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 60. Calm wind becoming west around 6 mph in the afternoon.
Thursday Night
Patchy fog after 1am. Otherwise, increasing clouds, with a low around 46. South southwest wind 3 to 5 mph.
Friday
Patchy fog before 10am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 58. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 42. Light northwest wind.
Saturday
Sunny, with a high near 60.
Saturday Night
Mostly clear, with a low around 40.
Sunday
Partly sunny, with a high near 58.
Sunday Night
Mostly cloudy, with a low around 42.
Monday
Mostly sunny, with a high near 60.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 60.
Tuesday Night
Mostly cloudy, with a low around 45.
Wednesday
A slight chance of rain. Mostly cloudy, with a high near 60.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Castro Valley CA
 37.77°N 122.12°W (Elev. 597 ft)
2:22 pm PST Jan 21, 2026
5pm PST Jan 21, 2026-6pm PST Jan 28, 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