Summerdale Weather Forecast

    • 24
    • 39

    Increasing Clouds

    • 14
    • 38

    Decreasing Clouds

    • 21
    • 29

    Chance Flurries

    • 24
    • 38

    Mostly Cloudy

    • 22
    • 39

    Mostly Cloudy

    • 14
    • 30

    Partly Sunny

    • 25
    • 33

    Slight Chance Snow

Today 3 Dec Cumberland

Mostly sunny. Highs in the upper 30s. Southwest Winds around 5 Mph.

Tonight 3 Dec Cumberland

Partly cloudy. Lows in the lower 20s. Southwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Summerdale Temperature Statistics

December Temperature

Harrisburg, Capital City Airport (6.8 miles)

  • Lowest 1 December, 2025

    28.9 °F

  • Average December

    35.3 °F

  • Highest 1 December, 2025

    41 °F

Climate (2020–Present)

Harrisburg, Capital City Airport (6.8 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    57.2 °F

  • Average High 2020–2025

    66.6 °F
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