New Haven Weather Forecast

    • 67
    • 95

    Rain Showers

    • 60
    • 77

    Rain Showers

    • 64
    • 85

    Chance Thunderstorms

    • 64
    • 89

    Chance Thunderstorms

    • 64
    • 87

    Chance Thunderstorms

    • 64
    • 89

    Chance Thunderstorms

Today 9 Sep Franklin

Mostly sunny. A slight chance of Showers in the Morning, then a chance of Showers and Thunderstorms in the afternoon. Hot with Highs in the mid 90s. West Winds 5 to 10 Mph. Chance of rain 50 percent. Heat index Values up to 104.

Tonight 9 Sep Franklin

Thunderstorms likely. Showers with Lows in the upper 60s. Northwest Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain near 100 percent.

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New Haven Temperature Statistics

September Temperature

Washington Regional Airport (11.8 miles)

  • Lowest 1 September, 2026

    68 °F

  • Average September

    85.1 °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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