West Haven Weather Forecast

    • 31
    • 36

    Increasing Clouds

    • 33
    • 46

    Rain Likely

    • 24
    • 41

    Partly Sunny

    • 25
    • 37

    Mostly Cloudy

    • 22
    • 37

    Partly Sunny

    • 17
    • 32

    Mostly Sunny

Today 9 Dec Southern New Haven

Mostly sunny. Highs in the mid 30s. Northwest Winds around 5 Mph, becoming southwest in the afternoon.

Tonight 9 Dec Southern New Haven

Mostly cloudy. A slight chance of snow and rain in the evening. Not as cool with Lows around 30. Southwest Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

West Haven Temperature Statistics

December Temperature

New Haven, Tweed-New Haven Airport (3.1 miles)

  • Lowest 5 December, 2025

    16 °F

  • Average December

    34.4 °F

  • Highest 1 December, 2025

    44.1 °F

Climate (2020–Present)

New Haven, Tweed-New Haven Airport (3.1 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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