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

SJSU - Mount Diablo Summit Museum Rooftop (SJS02)

Lat: 37.881699°NLon: 121.914173°WElev: 3904.0ft.

NA

52°F

11°C

Humidity 45%
Wind Speed NW 8 MPH
Barometer NA
Dewpoint 32°F (0°C)
Visibility NA
Last update 28 Nov 11:10 AM PST
Extended Forecast for

3 Miles NNE San Ramon CA

  • Today

    Today: Sunny, with a high near 61. Light northwest wind.

    High: 61 °F

    Sunny

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 10am. Otherwise, mostly sunny, with a high near 62. Calm wind.

    High: 62 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 5am. Otherwise, partly cloudy, with a low around 40. Calm wind.

    Low: 40 °F

    Mostly Clear
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog before 8am. Otherwise, mostly sunny, with a high near 61. Light and variable wind.

    High: 61 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 61.

    High: 61 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 41.

    Low: 41 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 63.

    High: 63 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 61. Light northwest wind.
Tonight
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 40. Calm wind.
Saturday
Patchy fog before 10am. Otherwise, mostly sunny, with a high near 62. Calm wind.
Saturday Night
Patchy fog after 5am. Otherwise, partly cloudy, with a low around 40. Calm wind.
Sunday
Patchy fog before 8am. Otherwise, mostly sunny, with a high near 61. Light and variable wind.
Sunday Night
Partly cloudy, with a low around 40.
Monday
Mostly sunny, with a high near 61.
Monday Night
Partly cloudy, with a low around 41.
Tuesday
Mostly sunny, with a high near 63.
Tuesday Night
Partly cloudy, with a low around 42.
Wednesday
Sunny, with a high near 63.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNE San Ramon CA
 37.8°N 121.93°W (Elev. 640 ft)
Last Update:
1:02 am PST Nov 28, 2025
Forecast Valid:
11am PST Nov 28, 2025-6pm PST Dec 4, 2025
 
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