Williamstown Weather Forecast

    • 44
    • 74

    Mostly Sunny

    • 48
    • 74

    Sunny

    • 48
    • 76

    Mostly Sunny

    • 49
    • 77

    Mostly Sunny

    • 51
    • 81

    Mostly Sunny

    • 49
    • 77

    Mostly Sunny

Today 7 Sep Dauphin

Sunny. Near steady temperature in the lower 70s. Northwest Winds 5 to 10 Mph.

Tonight 7 Sep Dauphin

Mostly clear. Cooler with Lows in the upper 40s. North Winds 5 to 10 Mph.

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  • Temperature Real-Time

Williamstown Temperature Statistics

September Temperature

Muir Army Air Field / Indiantown (9.9 miles)

  • Lowest 3 September, 2025

    50.9 °F

  • Average September

    66.3 °F

  • Highest 5 September, 2025

    83.8 °F

Climate (2020–Present)

Muir Army Air Field / Indiantown (9.9 miles)

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  • Average Low 2020–2025

    45.5 °F

  • Average 2020–2025

    55 °F

  • Average High 2020–2025

    64.3 °F
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