7-Day Forecast 37.35°N 121.64°W (Text-Only)
NWS Forecast for: Mount Hamilton CA
Issued by: National Weather Service San Francisco Bay Area/Monterey, CA
Last Update: 1:36 pm PDT Oct 28, 2026
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  • This
    Afternoon

    This Afternoon: Sunny, with a high near 57. North northwest wind around 7 mph.

    High: 57 °F

    Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 47. Light and variable wind.

    Low: 47 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 58. Calm wind becoming south southwest around 6 mph in the afternoon.

    High: 58 °F

    Mostly Cloudy

  • Thursday
    Night

    Thursday Night: Cloudy, then gradually becoming partly cloudy, with a low around 48. Calm wind.

    Low: 48 °F

    Decreasing
    Clouds

  • Friday

    Friday: Mostly sunny, with a high near 56. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    High: 56 °F

    Mostly Sunny

  • Friday
    Night

    Friday Night: Partly cloudy, with a low around 45.

    Low: 45 °F

    Partly Cloudy

  • Saturday

    Saturday: A 20 percent chance of rain after 11am.  Mostly cloudy, with a high near 51.

    High: 51 °F

    Slight Chance
    Rain

  • Saturday
    Night

    Saturday Night: A chance of rain, mainly before 11pm.  Mostly cloudy, with a low around 43.

    Low: 43 °F

    Chance Rain

  • Sunday

    Sunday: Sunny, with a high near 52.

    High: 52 °F

    Sunny

  • This Afternoon: Sunny, with a high near 57. North northwest wind around 7 mph.

    Tonight: Mostly cloudy, with a low around 47. Light and variable wind.

    Thursday: Mostly cloudy, with a high near 58. Calm wind becoming south southwest around 6 mph in the afternoon.

    Thursday Night: Cloudy, then gradually becoming partly cloudy, with a low around 48. Calm wind.

    Friday: Mostly sunny, with a high near 56. Calm wind becoming west southwest 5 to 7 mph in the afternoon.

    Friday Night: Partly cloudy, with a low around 45.

    Saturday: A 20 percent chance of rain after 11am. Mostly cloudy, with a high near 51.

    Saturday Night: A chance of rain, mainly before 11pm. Mostly cloudy, with a low around 43.

    Sunday: Sunny, with a high near 52.

    Sunday Night: Clear, with a low around 43.

    Monday: Sunny, with a high near 57.

    Monday Night: Partly cloudy, with a low around 47.

    Tuesday: Mostly sunny, with a high near 59.



    Mount Hamilton CA
     37.35°N 121.64°W (Elev. 2398 ft)

    Visit your local NWS office at: https://www.weather.gov/mtr