Middletown Weather Forecast

    • 62
    • 80

    Chance Rain Showers

    • 58
    • 79

    Mostly Sunny

    • 60
    • 79

    Partly Sunny

    • 63
    • 82

    Partly Sunny

    • 69
    • 86

    Slight Chance Thunderstorms

    • 63
    • 87

    Slight Chance Thunderstorms

Today 5 Sep Frederick

Mostly cloudy with a slight chance of Showers. A slight chance of Thunderstorms in the afternoon. Highs around 80. North Winds around 5 Mph. Chance of rain 20 percent.

Tonight 5 Sep Frederick

Mostly cloudy. Lows around 70. Northwest Winds around 5 Mph.

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  • Temperature Real-Time

Middletown Temperature Statistics

September Temperature

Frederick Municipal Airport (9.3 miles)

  • Lowest 2 September, 2026

    70.5 °F

  • Average September

    77.2 °F

  • Highest 1 September, 2026

    93.2 °F

Climate (2021–2026)

Frederick Municipal Airport (9.3 miles)

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  • Average Low 2021–2026

    46.3 °F

  • Average 2021–2026

    54.7 °F

  • Average High 2021–2026

    67.2 °F
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