Williamsport Regional Airport Weather Forecast

    • 48
    • 62

    Rain Showers

    • 44
    • 62

    Rain Showers

    • 37
    • 59

    Partly Sunny

    • 36
    • 58

    Partly Sunny

    • 35
    • 57

    Partly Sunny

    • 39
    • 59

    Partly Sunny

Today 28 Apr Southern Lycoming

Cloudy with scattered Showers. Cooler with Highs in the upper 50s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 40 percent.

Tonight 28 Apr Southern Lycoming

Mostly cloudy. Lows in the upper 40s. Southeast Winds 5 to 10 Mph.

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Williamsport Regional Airport Temperature Statistics

April Temperature

Williamsport - Lycoming County Airport (0 miles)

  • Lowest 8 April, 2026

    22.6 °F

  • Average April

    56 °F

  • Highest 16 April, 2026

    90.6 °F

Climate (2021–Present)

Williamsport - Lycoming County Airport (0 miles)

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  • Average Low 2021–2026

    43.6 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    63.3 °F
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