Montoursville Weather Forecast

    • 24
    • 27

    Chance Wintry Mix

    • 24
    • 39

    Rain/Snow

    • 23
    • 33

    Mostly Cloudy

    • 20
    • 34

    Chance Snow

    • 23
    • 34

    Chance Snow

    • 12
    • 31

    Partly Sunny

    • 16
    • 28

    Mostly Cloudy

Today 9 Dec Southern Lycoming

Cloudy. Highs in the mid 20s. South Winds around 10 Mph with Gusts up to 20 Mph.

Tonight 9 Dec Southern Lycoming

Cloudy. A chance of snow and freezing rain after midnight. Snow accumulation up to 1 inch possible. Not as cool with Lows in the mid 20s. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of precipitation 40 percent.

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Montoursville Temperature Statistics

December Temperature

Williamsport - Lycoming County Airport (0.6 miles)

  • Lowest 5 December, 2025

    10.9 °F

  • Average December

    29.9 °F

  • Highest 1 December, 2025

    37 °F

Climate (2020–Present)

Williamsport - Lycoming County Airport (0.6 miles)

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  • Average Low 2020–2025

    43.8 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    63.3 °F
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