New Haven Weather Forecast

    • 63
    • 92

    Increasing Clouds

    • 61
    • 84

    Rain Showers Likely

    • 61
    • 83

    Chance Rain Showers

    • 62
    • 85

    Chance Thunderstorms

    • 61
    • 83

    Chance Thunderstorms

    • 59
    • 84

    Chance Thunderstorms

Today 18 Sep Franklin

Sunny. Highs in the lower 90s. South Winds around 5 Mph.

Tonight 18 Sep Franklin

Partly cloudy with a slight chance of Showers and Thunderstorms in the Evening, then mostly cloudy with a chance of Showers after midnight. Lows in the mid 60s. Southwest Winds around 5 Mph in the Evening, becoming light and variable. Chance of rain 50 percent.

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New Haven Temperature Statistics

September Temperature

Washington Regional Airport (11.8 miles)

  • Lowest 8 September, 2025

    42.8 °F

  • Average September

    69.7 °F

  • Highest 14 September, 2025

    98.6 °F

Climate (2020–Present)

Washington Regional Airport (11.8 miles)

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  • Average Low 2020–2025

    47.4 °F

  • Average 2020–2025

    57.9 °F

  • Average High 2020–2025

    68.7 °F
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