New Haven Weather Forecast

    • 68
    • 97

    Chance Thunderstorms

    • 71
    • 95

    Chance Thunderstorms

    • 69
    • 95

    Mostly Sunny

    • 68
    • 95

    Partly Sunny

    • 67
    • 94

    Partly Sunny

    • 62
    • 87

    Chance Rain Showers

Today 15 Sep Franklin

Sunny. A chance of Showers with a slight chance of Thunderstorms in the afternoon. Hot with Highs in the upper 90s. Southwest Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 108.

Tonight 15 Sep Franklin

Clear. Near steady temperature in the mid 70s. South Winds 5 to 10 Mph.

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New Haven Temperature Statistics

September Temperature

Washington Regional Airport (11.8 miles)

  • Lowest 8 September, 2026

    62.6 °F

  • Average September

    81.2 °F

  • Highest 5 September, 2026

    102.2 °F

Climate (2021–2026)

Washington Regional Airport (11.8 miles)

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  • Average Low 2021–2026

    47.8 °F

  • Average 2021–2026

    58.5 °F

  • Average High 2021–2026

    69.7 °F
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