Groton Weather Forecast

    • 36
    • 64

    Mostly Sunny

    • 40
    • 67

    Mostly Sunny

    • 48
    • 68

    Chance Rain Showers

    • 47
    • 61

    Chance Rain Showers

    • 46
    • 62

    Chance Rain Showers

    • 45
    • 62

    Mostly Cloudy

    • 46
    • 66

    Partly Sunny

Today 23 Sep Caledonia

Partly sunny. Highs in the upper 60s.

Tonight 23 Sep Caledonia

Clear. Patchy fog and frost after midnight. Lows in the mid 30s. Light and variable Winds.

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  • Temperature Real-Time

Groton Temperature Statistics

September Temperature

Barre / Montpelier, Knapp State Airport (14.9 miles)

  • Lowest 19 September, 2026

    36.6 °F

  • Average September

    60.1 °F

  • Highest 3 September, 2026

    79.6 °F

Climate (2021–2026)

Barre / Montpelier, Knapp State Airport (14.9 miles)

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  • Average Low 2021–2026

    36.3 °F

  • Average 2021–2026

    46 °F

  • Average High 2021–2026

    55.6 °F
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