Loyalsock State Forest Weather Forecast

    • 55
    • 75

    Chance Rain Showers

    • 45
    • 62

    Mostly Sunny

    • 54
    • 64

    Mostly Sunny

    • 60
    • 71

    Slight Chance Thunderstorms

    • 60
    • 72

    Chance Rain Showers

    • 55
    • 70

    Chance Rain Showers

Today 13 Sep Northern Lycoming

Mostly cloudy with a chance of Showers this Morning, then partly sunny this afternoon. Warmer with Highs in the upper 70s. West Winds around 5 Mph. Chance of rain 50 percent.

Tonight 13 Sep Northern Lycoming

A slight chance of Thunderstorms in the evening. Mostly cloudy with a chance of Showers. Lows in the mid 50s. Northwest Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 50 percent.

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Loyalsock State Forest Temperature Statistics

September Temperature

Williamsport - Lycoming County Airport (18 miles)

  • Lowest 7 September, 2026

    52.6 °F

  • Average September

    72.9 °F

  • Highest 1 September, 2026

    92.6 °F

Climate (2021–2026)

Williamsport - Lycoming County Airport (18 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    63.3 °F
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