West Haven Weather Forecast

    • 50
    • 67

    Becoming Sunny

    • 51
    • 67

    Partly Sunny

    • 54
    • 67

    Chance Rain Showers

    • 55
    • 64

    Chance Rain Showers

    • 54
    • 65

    Chance Rain Showers

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    • 67

    Slight Chance Rain Showers

Today 23 Sep Southern New Haven

Mostly sunny. Highs in the upper 60s. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

Tonight 23 Sep Southern New Haven

Mostly clear. Lows in the upper 40s. Northeast Winds 15 to 20 Mph with Gusts up to 30 Mph.

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West Haven Temperature Statistics

September Temperature

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

  • Lowest 7 September, 2026

    52 °F

  • Average September

    69.1 °F

  • Highest 10 September, 2026

    84 °F

Climate (2021–2026)

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

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    55.5 °F

  • Average High 2021–2026

    63.3 °F
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