Williamsport Regional Airport Weather Forecast

    • 50
    • 72

    Becoming Sunny

    • 51
    • 79

    Mostly Sunny

    • 46
    • 68

    Mostly Sunny

    • 52
    • 75

    Partly Sunny

    • 51
    • 75

    Chance Rain Showers

    • 52
    • 75

    Chance Rain Showers

Today 28 May Southern Lycoming

Sunny. Not as warm with Highs in the lower 70s. Northwest Winds 10 to 15 Mph with Gusts up to 25 Mph.

Tonight 28 May Southern Lycoming

Mostly clear. Lows in the upper 40s. North Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming northwest around 5 Mph after midnight.

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Williamsport Regional Airport Temperature Statistics

May Temperature

Williamsport - Lycoming County Airport (0 miles)

  • Lowest 12 May, 2026

    32.6 °F

  • Average May

    58.2 °F

  • Highest 18 May, 2026

    94.6 °F

Climate (2021–Present)

Williamsport - Lycoming County Airport (0 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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