Groton Weather Forecast

    • 7
    • 25

    Increasing Clouds

    • -5
    • 23

    Partly Sunny

    • 9
    • 24

    Mostly Cloudy

    • -8
    • 17

    Slight Chance Snow

    • -9
    • 8

    Cold

    • 1
    • 14

    Partly Sunny

Today 4 Feb Southern Grafton

Partly sunny. Isolated snow Showers in the morning. Highs in the mid 20s. Light and variable Winds, becoming northwest around 10 Mph with Gusts up to 20 Mph in the afternoon. Chance of snow 20 percent.

Tonight 4 Feb Southern Grafton

Partly cloudy with a 20 percent chance of snow Showers. Lows around 6 above. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Groton Temperature Statistics

February Temperature

Plymouth Municipal Airport (6.2 miles)

  • Lowest 1 February, 2026

    -10.5 °F

  • Average February

    8.5 °F

  • Highest 1 February, 2026

    18.3 °F

Climate (2021–Present)

Plymouth Municipal Airport (6.2 miles)

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  • Average Low 2021–2026

    36.4 °F

  • Average 2021–2026

    46.5 °F

  • Average High 2021–2026

    57 °F
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