Preston Weather Forecast

    • 16
    • 47

    Chance Rain Showers

    • 22
    • 31

    Mostly Sunny

    • 27
    • 43

    Rain

    • 13
    • 36

    Partly Sunny

    • 29
    • 37

    Chance Snow

    • 27
    • 49

    Partly Sunny

    • 19
    • 37

    Mostly Sunny

Today 29 Jan Northern New London

Partly sunny with a 20 percent chance of Showers. Highs in the mid 40s. West Winds 15 to 20 Mph with Gusts up to 45 Mph.

Tonight 29 Jan Northern New London

Partly cloudy this Evening, then clearing. Lows around 16. Northwest Winds 15 to 20 Mph. Gusts up to 45 Mph, decreasing to 35 Mph after midnight.

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Preston Temperature Statistics

January Temperature

Groton / New London, Groton / New London Airport (13 miles)

  • Lowest 22 January, 2025

    5.8 °F

  • Average January

    29.1 °F

  • Highest 1 January, 2025

    51.7 °F

Climate (2020–Present)

Groton / New London, Groton / New London Airport (13 miles)

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  • Average Low 2020–2025

    45.6 °F

  • Average 2020–2025

    53.4 °F

  • Average High 2020–2025

    61 °F
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