Mercersville Weather Forecast

    • 16
    • 28

    Gradual Clearing

    • 23
    • 37

    Partly Sunny

    • 27
    • 49

    Mostly Cloudy

    • 32
    • 51

    Rain

    • 23
    • 41

    Partly Sunny

    • 35
    • 43

    Chance Rain

Today 15 Dec Washington

Partly sunny late this Morning, then becoming mostly cloudy. Scattered Flurries this afternoon. Highs in the upper 20s. West Winds 5 to 10 Mph with Gusts up to 25 Mph.

Tonight 15 Dec Washington

Partly cloudy in the Evening, then clearing. Lows around 17. Southwest Winds around 5 Mph.

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Mercersville Temperature Statistics

December Temperature

Eastern WV Regional Airport/Shepherd Field (13 miles)

  • Lowest 9 December, 2025

    10.9 °F

  • Average December

    31.8 °F

  • Highest 13 December, 2025

    46.9 °F

Climate (2020–Present)

Eastern WV Regional Airport/Shepherd Field (13 miles)

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  • Average Low 2020–2025

    44.7 °F

  • Average 2020–2025

    55.1 °F

  • Average High 2020–2025

    65.6 °F
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