South Williamsport Weather Forecast

    • 60
    • 89

    Mostly Sunny

    • 55
    • 86

    Rain Showers Likely

    • 52
    • 75

    Partly Sunny

    • 54
    • 77

    Partly Sunny

    • 57
    • 80

    Rain Showers Likely

    • 60
    • 84

    Rain Showers Likely

Today 13 Jun Southern Lycoming

Sunny. Very warm with Highs in the upper 80s. West Winds around 5 Mph.

Tonight 13 Jun Southern Lycoming

Mostly clear. Cooler with Lows in the upper 50s. Northwest Winds 5 to 10 Mph with Gusts up to 20 Mph.

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South Williamsport Temperature Statistics

June Temperature

Williamsport - Lycoming County Airport (3.7 miles)

  • Lowest 1 June, 2026

    45.6 °F

  • Average June

    68.5 °F

  • Highest 5 June, 2026

    90.6 °F

Climate (2021–Present)

Williamsport - Lycoming County Airport (3.7 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    52.9 °F

  • Average High 2021–2026

    63.2 °F
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