Hamilton Weather Forecast

    • 48
    • 70

    Mostly Sunny

    • 50
    • 73

    Mostly Sunny

    • 52
    • 69

    Partly Sunny

    • 50
    • 72

    Mostly Sunny

    • 51
    • 77

    Mostly Sunny

    • 53
    • 74

    Partly Sunny

Today 23 May North Bay Interior Valleys

Sunny. Highs in the 60s to 70s. West Winds 10 to 20 Mph.

Tonight 23 May North Bay Interior Valleys

Partly cloudy. Lows in the mid 40s to lower 50s. West Winds 10 to 20 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Hamilton Temperature Statistics

May Temperature

Novato / Gnoss Field (5.6 miles)

  • Lowest 10 May, 2025

    44.6 °F

  • Average May

    61.4 °F

  • Highest 9 May, 2025

    91.4 °F

Climate (2020–Present)

Novato / Gnoss Field (5.6 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    46 °F

  • Average 2020–2025

    57.7 °F

  • Average High 2020–2025

    72.8 °F
Get WillyWeather+ to remove ads