National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Storm Impacting the Southwest U.S.; Above Normal Temperatures Further East

A storm system will shift across the southwest U.S. through Thursday with widespread showers and isolated thunderstorms. Isolated flooding is possible. High-elevation snow is also expected in parts of Nevada and the southern Sierra Nevada range. East of this storm, above average temperatures will challenge or break daily record high temperatures this week in the southern Plains and southeast U.S. Read More >

Current conditions at

LAS TRAMPAS (LTRC1)

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

NA

44°F

7°C

Humidity 100%
Wind Speed E 13 MPH
Barometer NA
Dewpoint 44°F (7°C)
Visibility NA
Wind Chill38°F (3°C)
Last update 18 Nov 08:28 AM PST
Extended Forecast for

5 Miles NW Castro Valley CA

  • Today

    Today: Sunny, with a high near 59. North northeast wind 5 to 13 mph becoming west in the afternoon.

    High: 59 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. South southeast wind around 6 mph.

    Low: 47 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 58. Southeast wind around 5 mph becoming light and variable.

    High: 58 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Rain, mainly after 10pm. Low around 49. South wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Rain

  • Thursday

    Thursday: Rain, mainly before 10am. High near 57. South wind 7 to 10 mph becoming west in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 57 °F

    Rain then
    Chance Rain

  • Thursday Night

    Thursday Night: A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 44.

    Low: 44 °F

    Slight Chance
    Rain then
    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 60.

    High: 60 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 45.

    Low: 45 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 59. North northeast wind 5 to 13 mph becoming west in the afternoon.
Tonight
Mostly cloudy, with a low around 47. South southeast wind around 6 mph.
Wednesday
Partly sunny, with a high near 58. Southeast wind around 5 mph becoming light and variable.
Wednesday Night
Rain, mainly after 10pm. Low around 49. South wind 5 to 7 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Thursday
Rain, mainly before 10am. High near 57. South wind 7 to 10 mph becoming west in the afternoon. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A 20 percent chance of rain before 10pm. Partly cloudy, with a low around 44.
Friday
Sunny, with a high near 60.
Friday Night
Mostly clear, with a low around 45.
Saturday
Sunny, with a high near 61.
Saturday Night
Mostly clear, with a low around 45.
Sunday
Mostly sunny, with a high near 61.
Sunday Night
Partly cloudy, with a low around 45.
Monday
Mostly sunny, with a high near 61.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NW Castro Valley CA
 37.77°N 122.12°W (Elev. 597 ft)
Last Update:
8:01 am PST Nov 18, 2025
Forecast Valid:
8am PST Nov 18, 2025-6pm PST Nov 24, 2025
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation