Long Pine Run Reservoir Weather Forecast

    • 22
    • 38

    Decreasing Clouds

    • 20
    • 38

    Mostly Cloudy

    • 11
    • 28

    Partly Sunny

    • 24
    • 33

    Mostly Cloudy

    • 27
    • 42

    Chance Rain Showers

    • 21
    • 38

    Slight Chance Rain/Snow

Today 6 Dec Adams

Mostly cloudy. Not as cool with Highs in the lower 40s. Southwest Winds around 5 Mph.

Tonight 6 Dec Adams

Cloudy. Near steady temperature in the mid 20s. Light and variable Winds.

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Long Pine Run Reservoir Temperature Statistics

December Temperature

Hagerstown, Washington County Regional Airport (21.7 miles)

  • Lowest 3 December, 2025

    28 °F

  • Average December

    35 °F

  • Highest 1 December, 2025

    42.1 °F

Climate (2020–Present)

Hagerstown, Washington County Regional Airport (21.7 miles)

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  • Average Low 2020–2025

    47.9 °F

  • Average 2020–2025

    56.8 °F

  • Average High 2020–2025

    65.9 °F
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