Williamsport Weather Forecast

    • 44
    • 75

    Rain Showers Likely

    • 34
    • 53

    Partly Sunny

    • 37
    • 60

    Sunny

    • 41
    • 66

    Mostly Sunny

    • 42
    • 68

    Mostly Sunny

    • 42
    • 68

    Mostly Sunny

Today 16 Oct Johnson

Mostly sunny in the Morning, then mostly cloudy with Showers likely in the afternoon. Highs in the mid 70s. Temperature falling to around 60 in the afternoon. Southwest Winds 5 to 10 Mph, becoming west in the afternoon. Chance of rain 60 percent.

Tonight 16 Oct Johnson

Showers likely. Much cooler. Less humid with Lows in the lower 40s. Northwest Winds 5 to 10 Mph. Chance of rain 60 percent.

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Williamsport Temperature Statistics

October Temperature

Big Sandy Regional Airport (6.8 miles)

  • Lowest 6 October, 2026

    41.9 °F

  • Average October

    63.9 °F

  • Highest 1 October, 2026

    86.2 °F

Climate (2021–2026)

Big Sandy Regional Airport (6.8 miles)

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  • Average Low 2021–2026

    48.5 °F

  • Average 2021–2026

    57.7 °F

  • Average High 2021–2026

    67.8 °F
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