Sylvan Weather Forecast

    • 16
    • 23

    Decreasing Clouds

    • 18
    • 29

    Partly Sunny

    • 25
    • 38

    Partly Sunny

    • 30
    • 50

    Mostly Cloudy

    • 33
    • 51

    Rain Showers Likely

    • 27
    • 45

    Mostly Cloudy

Today 14 Dec Franklin

Mostly sunny. Much Colder with Highs in the mid 20s. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Wind chill Values as low as 4 above.

Tonight 14 Dec Franklin

Cloudy with a 20 percent chance of snow. Lows in the lower 20s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph.

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Sylvan Temperature Statistics

December Temperature

Hagerstown, Washington County Regional Airport (15.5 miles)

  • Lowest 9 December, 2025

    14 °F

  • Average December

    32.4 °F

  • Highest 7 December, 2025

    44.6 °F

Climate (2020–Present)

Hagerstown, Washington County Regional Airport (15.5 miles)

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  • Average Low 2020–2025

    47.8 °F

  • Average 2020–2025

    56.8 °F

  • Average High 2020–2025

    65.8 °F
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