Topsham Weather Forecast

    • 51
    • 71

    Increasing Clouds

    • 46
    • 77

    Mostly Sunny

    • 48
    • 75

    Mostly Sunny

    • 39
    • 71

    Mostly Sunny

    • 32
    • 58

    Mostly Sunny

    • 33
    • 60

    Mostly Sunny

Today 27 Sep Orange

Patchy dense fog in the morning. Mostly sunny. Highs in the lower 70s. Light and variable Winds.

Tonight 27 Sep Orange

Partly cloudy. Lows in the mid 50s. Light and variable Winds.

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Topsham Temperature Statistics

September Temperature

Barre / Montpelier, Knapp State Airport (16.2 miles)

  • Lowest 20 September, 2025

    35.1 °F

  • Average September

    58.4 °F

  • Highest 4 September, 2025

    80.1 °F

Climate (2020–Present)

Barre / Montpelier, Knapp State Airport (16.2 miles)

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  • Average Low 2020–2025

    36.9 °F

  • Average 2020–2025

    46.3 °F

  • Average High 2020–2025

    55.7 °F
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