Mechanicsburg Weather Forecast

    • 22
    • 36

    Mostly Cloudy

    • 24
    • 41

    Snow Likely

    • 18
    • 27

    Mostly Cloudy

    • 18
    • 30

    Mostly Cloudy

    • 24
    • 35

    Mostly Cloudy

    • 32
    • 44

    Mostly Cloudy

Today 12 Dec Cumberland

Mostly sunny. Highs in the mid 30s. West Winds around 5 Mph.

Tonight 12 Dec Cumberland

Mostly clear in the Evening, then becoming mostly cloudy. Lows in the lower 20s. Light and variable Winds, becoming south around 5 Mph after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Mechanicsburg Temperature Statistics

December Temperature

Harrisburg, Capital City Airport (8.1 miles)

  • Lowest 9 December, 2025

    10 °F

  • Average December

    30.8 °F

  • Highest 1 December, 2025

    41 °F

Climate (2020–Present)

Harrisburg, Capital City Airport (8.1 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    57.2 °F

  • Average High 2020–2025

    66.5 °F
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