New Haven Weather Forecast

    • 31
    • 40

    Rain/Snow

    • 25
    • 42

    Partly Sunny

    • 24
    • 41

    Mostly Cloudy

    • 24
    • 32

    Snow

    • 27
    • 35

    Rain/Snow Likely

    • 24
    • 44

    Rain Likely

Today 23 Dec Southern New Haven

Snow with a slight chance of rain in the Morning, then rain and snow in the afternoon. Snow accumulation around an inch. Highs in the upper 30s. Southwest Winds 5 to 10 Mph. Chance of precipitation near 100 percent.

Tonight 23 Dec Southern New Haven

Mostly cloudy. Lows in the lower 30s. West Winds 10 to 15 Mph with Gusts up to 25 Mph.

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New Haven Temperature Statistics

December Temperature

New Haven, Tweed-New Haven Airport (3.7 miles)

  • Lowest 5 December, 2025

    16 °F

  • Average December

    34.6 °F

  • Highest 19 December, 2025

    57.9 °F

Climate (2020–Present)

New Haven, Tweed-New Haven Airport (3.7 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    55.8 °F

  • Average High 2020–2025

    63.7 °F
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