Colonel Denning State Park Weather Forecast

    • 46
    • 72

    Becoming Sunny

    • 46
    • 72

    Mostly Sunny

    • 49
    • 74

    Mostly Sunny

    • 50
    • 75

    Mostly Sunny

    • 52
    • 79

    Mostly Sunny

    • 50
    • 75

    Mostly Sunny

Today 7 Sep Cumberland

Partly sunny this Morning, then clearing. Highs in the mid 70s. Northwest Winds 5 to 10 Mph.

Tonight 7 Sep Cumberland

Mostly clear. Cooler with Lows in the upper 40s. Northwest Winds 5 to 10 Mph.

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Colonel Denning State Park Temperature Statistics

September Temperature

Harrisburg, Capital City Airport (29.2 miles)

  • Lowest 1 September, 2025

    52 °F

  • Average September

    67.8 °F

  • Highest 4 September, 2025

    81 °F

Climate (2020–Present)

Harrisburg, Capital City Airport (29.2 miles)

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  • Average Low 2020–2025

    48 °F

  • Average 2020–2025

    57.3 °F

  • Average High 2020–2025

    66.7 °F
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