Lock Haven Weather Forecast

    • 63
    • 84

    Chance Rain Showers

    • 62
    • 84

    Slight Chance Thunderstorms

    • 54
    • 83

    Mostly Sunny

    • 58
    • 80

    Partly Sunny

    • 65
    • 81

    Rain Showers Likely

    • 60
    • 82

    Slight Chance Rain Showers

Today 12 Aug Southern Clinton

Patchy fog in the morning. Partly sunny with a slight chance of Showers. A slight chance of Thunderstorms in the afternoon. Highs in the lower 80s. Northwest Winds around 5 Mph. Chance of rain 20 percent.

Tonight 12 Aug Southern Clinton

Mostly cloudy with a 50 percent chance of Showers. Patchy fog. Lows in the mid 60s. Northwest Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Lock Haven Temperature Statistics

August Temperature

Williamsport - Lycoming County Airport (28 miles)

  • Lowest 4 August, 2026

    58.6 °F

  • Average August

    75.9 °F

  • Highest 6 August, 2026

    89.7 °F

Climate (2021–2026)

Williamsport - Lycoming County Airport (28 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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