New Haven Weather Forecast

    • 24
    • 46

    Mostly Cloudy

    • 31
    • 38

    Mostly Cloudy

    • 18
    • 40

    Mostly Cloudy

    • 7
    • 36

    Mostly Cloudy

    • 12
    • 25

    Mostly Sunny

    • 26
    • 40

    Mostly Cloudy

Today 10 Dec Franklin

Cloudy. Scattered Sprinkles and Flurries late this morning. Cooler with Highs in the upper 40s. Northwest Winds 15 to 20 Mph with Gusts up to 40 Mph.

Tonight 10 Dec Franklin

Mostly cloudy. Much cooler with Lows in the mid 20s. Northwest Winds 5 to 10 Mph.

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New Haven Temperature Statistics

December Temperature

Washington Regional Airport (11.8 miles)

  • Lowest 3 December, 2025

    14 °F

  • Average December

    30.4 °F

  • Highest 6 December, 2025

    51.8 °F

Climate (2020–Present)

Washington Regional Airport (11.8 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    58.1 °F

  • Average High 2020–2025

    69 °F
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