Hillsgrove Weather Forecast

    • 14
    • 30

    Mostly Sunny

    • 26
    • 35

    Wintry Mix

    • 30
    • 38

    Wintry Mix Likely

    • 27
    • 38

    Chance Freezing Rain

    • 34
    • 40

    Chance Rain Showers

    • 30
    • 48

    Rain Showers Likely

    • 29
    • 39

    Chance Rain Showers

Today 21 Dec Sullivan

Partly sunny. Highs around 30. Temperature falling into the lower 20s late. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph.

Tonight 21 Dec Sullivan

Mostly clear. Colder with Lows around 15. Northwest Winds 10 to 15 Mph with Gusts up to 30 Mph. Wind chill Values as low as 3 above.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Hillsgrove Temperature Statistics

December Temperature

Williamsport - Lycoming County Airport (17.4 miles)

  • Lowest 9 December, 2025

    6.1 °F

  • Average December

    27.5 °F

  • Highest 19 December, 2025

    55.9 °F

Climate (2020–Present)

Williamsport - Lycoming County Airport (17.4 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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