Groton Weather Forecast

    • 23
    • 38

    Rain/Snow

    • 4
    • 32

    Partly Sunny

    • 22
    • 31

    Snow Likely

    • 22
    • 46

    Slight Chance Rain

    • 16
    • 35

    Partly Sunny

    • 26
    • 36

    Snow Likely

Today 31 Jan Northwest Middlesex County

Cloudy. Rain likely in the afternoon. Patchy fog in the afternoon. Not as cool with Highs in the upper 30s. Southwest Winds 5 to 10 Mph. Chance of rain 60 percent.

Tonight 31 Jan Northwest Middlesex County

Mostly cloudy. Lows around 16. Temperature rising into the mid 20s through Sunrise. South Winds 5 to 10 Mph.

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Groton Temperature Statistics

January Temperature

Fitchburg, Fitchburg Municipal Airport (9.9 miles)

  • Lowest 22 January, 2025

    -9.1 °F

  • Average January

    24.3 °F

  • Highest 1 January, 2025

    46.7 °F

Climate (2020–Present)

Fitchburg, Fitchburg Municipal Airport (9.9 miles)

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  • Average Low 2020–2025

    42 °F

  • Average 2020–2025

    51.9 °F

  • Average High 2020–2025

    61.7 °F
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