Hamilton Weather Forecast

    • 53
    • 74

    Becoming Sunny

    • 55
    • 83

    Mostly Sunny

    • 54
    • 84

    Mostly Sunny

    • 53
    • 77

    Mostly Sunny

    • 53
    • 74

    Mostly Sunny

    • 54
    • 72

    Mostly Sunny

Today 27 Jun North Bay Interior Valleys

Partly cloudy in the morning then becoming sunny. A slight chance of drizzle in the morning. Highs in the lower 60s to mid 70s. West Winds 10 to 20 Mph with Gusts to around 35 Mph.

Tonight 27 Jun North Bay Interior Valleys

Mostly clear. Lows in the upper 40s to mid 50s. West Winds 10 to 20 Mph with Gusts to around 35 Mph.

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Hamilton Temperature Statistics

June Temperature

Novato / Gnoss Field (5.6 miles)

  • Lowest 7 June, 2026

    46.4 °F

  • Average June

    65.2 °F

  • Highest 11 June, 2026

    100.4 °F

Climate (2021–2026)

Novato / Gnoss Field (5.6 miles)

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  • Average Low 2021–2026

    46.8 °F

  • Average 2021–2026

    57.7 °F

  • Average High 2021–2026

    72.5 °F
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