Record Warmth Lingers; Fire Weather Concerns; Unsettled Pacific Northwest

More record warm temperatures are forecast this week from California, Southwest, Plains then into the Mississippi Valley and Southeast. The warmth combining with dry conditions may result in elevated to locally critical fire weather conditions. Meanwhile, another Pacific system will move across the Pacific Northwest with lower elevation rain and mountain snows. For Hawaii, conditions improving. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

78°F

26°C

Humidity 38%
Wind Speed W 2 MPH
Barometer NA
Dewpoint 50°F (10°C)
Visibility NA
Heat Index79°F (26°C)
Last update 22 Mar 02:28 PM PDT
Extended Forecast for

5 Miles NW Castro Valley CA

  • Tonight

    Tonight: Partly cloudy, with a low around 50. West southwest wind around 7 mph becoming south after midnight.

    Low: 50 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 74. South southeast wind 6 to 9 mph becoming west in the afternoon.

    High: 74 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. South southwest wind 5 to 7 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Light and variable wind becoming west 5 to 8 mph in the afternoon.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 51. Southwest wind 6 to 9 mph.

    Low: 51 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 73.

    High: 73 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 48.

    Low: 48 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 74.

    High: 74 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 52.

    Low: 52 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 50. West southwest wind around 7 mph becoming south after midnight.
Monday
Sunny, with a high near 74. South southeast wind 6 to 9 mph becoming west in the afternoon.
Monday Night
Mostly clear, with a low around 51. South southwest wind 5 to 7 mph.
Tuesday
Sunny, with a high near 78. Light and variable wind becoming west 5 to 8 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 51. Southwest wind 6 to 9 mph.
Wednesday
Sunny, with a high near 73.
Wednesday Night
Mostly clear, with a low around 48.
Thursday
Mostly sunny, with a high near 74.
Thursday Night
Mostly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 78.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Mostly sunny, with a high near 75.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Sunny, with a high near 74.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Castro Valley CA
 37.77°N 122.12°W (Elev. 597 ft)
2:41 pm PDT Mar 22, 2026
3pm PDT Mar 22, 2026-6pm PDT Mar 29, 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