Groton Weather Forecast

    • 44
    • 74

    Slight Chance Rain Showers

    • 44
    • 76

    Mostly Sunny

    • 46
    • 79

    Mostly Sunny

    • 49
    • 82

    Partly Sunny

    • 51
    • 82

    Partly Sunny

    • 47
    • 80

    Partly Sunny

Today 14 Sep Caledonia

Patchy fog in the morning. Partly sunny with a 20 percent chance of Showers. Highs in the lower 70s. Light and variable Winds.

Tonight 14 Sep Caledonia

Mostly clear. Patchy dense fog after midnight. Lows in the mid 40s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Groton Temperature Statistics

September Temperature

Barre / Montpelier, Knapp State Airport (14.9 miles)

  • Lowest 9 September, 2025

    39 °F

  • Average September

    58.9 °F

  • Highest 4 September, 2025

    80.1 °F

Climate (2020–Present)

Barre / Montpelier, Knapp State Airport (14.9 miles)

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  • Average Low 2020–2025

    36.8 °F

  • Average 2020–2025

    46.2 °F

  • Average High 2020–2025

    55.7 °F
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