Old Furnace Weather Forecast

    • 24
    • 29

    Snow/Sleet

    • 26
    • 36

    Mostly Cloudy

    • 35
    • 36

    Rain Showers

    • 24
    • 47

    Chance Rain/Snow

    • 24
    • 30

    Mostly Cloudy

    • 20
    • 33

    Mostly Cloudy

Today 26 Dec Union

Snow, sleet and freezing rain this afternoon. Precipitation may be heavy at Times this afternoon. Snow and sleet accumulation around an inch. Ice accumulation around a trace. Much Colder with Highs in the upper 20s. East Winds around 5 Mph, becoming southeast with Gusts up to 25 Mph this afternoon. Chance of precipitation near 100 percent.

Tonight 26 Dec Union

Sleet, snow with a chance of freezing rain in the Evening, then a slight chance of freezing rain and sleet after midnight. Total snow accumulation around an inch. Ice accumulation around a trace. Lows in the mid 20s. Southeast Winds 5 to 10 Mph with Gusts up to 25 Mph, becoming northeast after midnight. Chance of precipitation near 100 percent.

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Old Furnace Temperature Statistics

December Temperature

Williamsport - Lycoming County Airport (11.2 miles)

  • Lowest 9 December, 2025

    6.1 °F

  • Average December

    28.1 °F

  • Highest 19 December, 2025

    55.9 °F

Climate (2020–Present)

Williamsport - Lycoming County Airport (11.2 miles)

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  • Average Low 2020–2025

    43.8 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    63.2 °F
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