Lock Haven Weather Forecast

    • 45
    • 68

    Decreasing Clouds

    • 44
    • 68

    Partly Sunny

    • 49
    • 71

    Partly Sunny

    • 50
    • 69

    Partly Sunny

    • 50
    • 70

    Partly Sunny

    • 52
    • 71

    Partly Sunny

Today 23 Sep Southern Clinton

Partly sunny. Highs in the mid 60s. East Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 23 Sep Southern Clinton

Partly cloudy. Lows in the mid 40s. East Winds 5 to 10 Mph.

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Lock Haven Temperature Statistics

September Temperature

Williamsport - Lycoming County Airport (28 miles)

  • Lowest 15 September, 2026

    47.6 °F

  • Average September

    70.4 °F

  • Highest 1 September, 2026

    92.6 °F

Climate (2021–2026)

Williamsport - Lycoming County Airport (28 miles)

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  • Average Low 2021–2026

    43.5 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    63.3 °F
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