Middletown Weather Forecast

    • 64
    • 76

    Chance Rain Showers

    • 60
    • 81

    Rain Showers

    • 60
    • 67

    Rain Showers Likely

    • 54
    • 62

    Rain Showers Likely

    • 54
    • 59

    Chance Rain Showers

    • 54
    • 61

    Slight Chance Rain Showers

Today 19 Sep Frederick

Partly sunny. Highs in the mid 70s. Northeast Winds 5 to 10 Mph, becoming east in the afternoon.

Tonight 19 Sep Frederick

Cloudy. A slight chance of Showers after midnight. Lows in the mid 60s. Southeast Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Middletown Temperature Statistics

September Temperature

Frederick Municipal Airport (9.3 miles)

  • Lowest 15 September, 2026

    48.2 °F

  • Average September

    70.6 °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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