Middletown Weather Forecast

    • 60
    • 81

    Chance Rain Showers

    • 50
    • 76

    Mostly Sunny

    • 50
    • 76

    Mostly Sunny

    • 52
    • 76

    Partly Sunny

    • 53
    • 76

    Partly Sunny

    • 54
    • 82

    Mostly Sunny

Today 6 Sep Dauphin

Partly sunny with a chance of Showers and Thunderstorms. Some Thunderstorms may produce gusty Winds. Near steady temperature in the mid 70s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph. Chance of rain 50 percent.

Tonight 6 Sep Dauphin

A chance of Thunderstorms in the evening. Mostly cloudy with a chance of Showers. Some Thunderstorms may produce gusty Winds in the evening. Lows in the upper 50s. Northwest Winds 5 to 10 Mph. Chance of rain 50 percent.

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Middletown Temperature Statistics

September Temperature

Harrisburg, Harrisburg International Airport (1.2 miles)

  • Lowest 3 September, 2025

    55.9 °F

  • Average September

    68.6 °F

  • Highest 3 September, 2025

    82 °F

Climate (2020–Present)

Harrisburg, Harrisburg International Airport (1.2 miles)

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  • Average Low 2020–2025

    47.6 °F

  • Average 2020–2025

    56.2 °F

  • Average High 2020–2025

    65.3 °F
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