New London Weather Forecast

    • 55
    • 65

    Chance Rain Showers

    • 57
    • 69

    Rain Showers

    • 58
    • 69

    Rain Showers

    • 55
    • 75

    Partly Sunny

    • 51
    • 71

    Slight Chance Thunderstorms

    • 52
    • 71

    Mostly Sunny

Today 1 Sep Merrimack

Rain. Highs in the upper 60s. Light and variable Winds. Chance of rain 90 percent.

Tonight 1 Sep Merrimack

A slight chance of Thunderstorms in the evening. Cloudy with a chance of Showers. Lows in the mid 50s. Light and variable Winds. Chance of rain 50 percent.

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New London Temperature Statistics

September Temperature

Lebanon Municipal Airport (21.1 miles)

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  • Average September

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Climate (2021–2026)

Lebanon Municipal Airport (21.1 miles)

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  • Average Low 2021–2026

    37.8 °F

  • Average 2021–2026

    48.7 °F

  • Average High 2021–2026

    59.7 °F
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