Hamilton Weather Forecast

    • 47
    • 75

    Partly Sunny

    • 53
    • 76

    Partly Sunny

    • 49
    • 78

    Partly Sunny

    • 50
    • 74

    Partly Sunny

    • 52
    • 76

    Mostly Cloudy

    • 52
    • 69

    Chance Rain

Today 25 Mar North Bay Interior Valleys

Sunny late in the morning then becoming partly cloudy. Highs in the upper 60s to lower 80s. Northwest Winds 10 to 20 Mph.

Tonight 25 Mar North Bay Interior Valleys

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

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Hamilton Temperature Statistics

March Temperature

Novato / Gnoss Field (5.6 miles)

  • Lowest 10 March, 2026

    42.8 °F

  • Average March

    61.6 °F

  • Highest 20 March, 2026

    95 °F

Climate (2021–Present)

Novato / Gnoss Field (5.6 miles)

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  • Average Low 2021–2026

    46.5 °F

  • Average 2021–2026

    57.6 °F

  • Average High 2021–2026

    72.5 °F
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