Middletown Weather Forecast

    • 22
    • 33

    Increasing Clouds

    • 24
    • 46

    Mostly Cloudy

    • 42
    • 50

    Mostly Cloudy

    • 23
    • 44

    Partly Sunny

    • 33
    • 40

    Mostly Cloudy

    • 28
    • 47

    Mostly Cloudy

Today 16 Dec Dauphin

Sunny in the Morning, then becoming partly sunny. Highs in the lower 30s. West Winds around 5 Mph.

Tonight 16 Dec Dauphin

Mostly clear. Lows around 15. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Middletown Temperature Statistics

December Temperature

Harrisburg, Harrisburg International Airport (1.2 miles)

  • Lowest 9 December, 2025

    12.9 °F

  • Average December

    30.4 °F

  • Highest 1 December, 2025

    42.1 °F

Climate (2020–Present)

Harrisburg, Harrisburg International Airport (1.2 miles)

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  • Average Low 2020–2025

    47.5 °F

  • Average 2020–2025

    56.1 °F

  • Average High 2020–2025

    65.2 °F
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