New Haven Weather Forecast

    • 62
    • 91

    Sunny

    • 60
    • 92

    Mostly Sunny

    • 62
    • 93

    Partly Sunny

    • 66
    • 93

    Partly Sunny

    • 65
    • 89

    Isolated Thunderstorms

    • 64
    • 90

    Rain Showers

Today 17 Sep Nelson

Sunny. Highs around 90. East Winds up to 5 Mph.

Tonight 17 Sep Nelson

Mostly clear. Lows in the lower 60s. East Winds up to 5 Mph in the evening becoming light.

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New Haven Temperature Statistics

September Temperature

Lebanon-Springfield Airport (18.6 miles)

  • Lowest 8 September, 2025

    48.2 °F

  • Average September

    70 °F

  • Highest 14 September, 2025

    93.2 °F

Climate (2020–Present)

Lebanon-Springfield Airport (18.6 miles)

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  • Average Low 2020–2025

    48.1 °F

  • Average 2020–2025

    57.7 °F

  • Average High 2020–2025

    68 °F
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