Winter Returns Across the Northern Tier; Record Warmth for the Southwest

A large high pressure system will usher in cold air for this first day of March across the northern Plains, Great Lakes, Northeast and mid-Atlantic. Some wintry precipitation may evolve across the mid-Mississippi Valley, Ohio Valley and mid-Atlantic through Monday. Meanwhile, record warmth will spread across the Southwest, southern Plains through early this week. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

50°F

10°C

Humidity 100%
Wind Speed W 12 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Wind Chill45°F (7°C)
Last update 01 Mar 07:28 AM PST
Extended Forecast for

5 Miles NW Castro Valley CA

  • Today

    Today: Areas of dense fog before 10am.  Otherwise, partly sunny, with a high near 62. West southwest wind 5 to 9 mph.

    High: 62 °F

    Areas Dense
    Fog then
    Partly Sunny

  • Tonight

    Tonight: A slight chance of rain before 1am, then a slight chance of rain after 2am.  Patchy fog after 1am.  Otherwise, mostly cloudy, with a low around 49. South southwest wind around 7 mph.  Chance of precipitation is 20%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 49 °F

    Slight Chance
    Rain and
    Patchy Fog

  • Monday

    Monday: A 20 percent chance of rain before 10am.  Patchy fog before 9am.  Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 63. South southwest wind 5 to 7 mph becoming west in the afternoon.  New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Slight Chance
    Rain and
    Patchy Fog
    then Mostly
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 11pm.  Otherwise, partly cloudy, with a low around 48. West southwest wind around 6 mph.

    Low: 48 °F

    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am.  Otherwise, mostly sunny, with a high near 63. West wind 3 to 8 mph.

    High: 63 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 45.

    Low: 45 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

Detailed Forecast

Today
Areas of dense fog before 10am. Otherwise, partly sunny, with a high near 62. West southwest wind 5 to 9 mph.
Tonight
A slight chance of rain before 1am, then a slight chance of rain after 2am. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 49. South southwest wind around 7 mph. Chance of precipitation is 20%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A 20 percent chance of rain before 10am. Patchy fog before 9am. Otherwise, mostly cloudy, then gradually becoming sunny, with a high near 63. South southwest wind 5 to 7 mph becoming west in the afternoon. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Patchy fog after 11pm. Otherwise, partly cloudy, with a low around 48. West southwest wind around 6 mph.
Tuesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 63. West wind 3 to 8 mph.
Tuesday Night
Partly cloudy, with a low around 48.
Wednesday
Mostly sunny, with a high near 65.
Wednesday Night
Clear, with a low around 45.
Thursday
Sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 48.
Friday
Sunny, with a high near 70.
Friday Night
Mostly clear, with a low around 49.
Saturday
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)
1:17 am PST Mar 1, 2026
7am PST Mar 1, 2026-6pm PST Mar 7, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database