McElhattan Reservoir Weather Forecast

    • 45
    • 67

    Mostly Sunny

    • 52
    • 71

    Mostly Sunny

    • 61
    • 79

    Partly Sunny

    • 63
    • 81

    Rain Showers Likely

    • 56
    • 77

    Chance Rain Showers

    • 57
    • 74

    Chance Rain Showers

Today 14 Sep Southern Clinton

Sunny. Not as warm with Highs around 70. North Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 14 Sep Southern Clinton

Mostly clear. Patchy fog after midnight. Cooler with Lows in the mid 40s. Northeast Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Real-Time

McElhattan Reservoir Temperature Statistics

September Temperature

Williamsport - Lycoming County Airport (23.6 miles)

  • Lowest 7 September, 2026

    52.6 °F

  • Average September

    72.2 °F

  • Highest 1 September, 2026

    92.6 °F

Climate (2021–2026)

Williamsport - Lycoming County Airport (23.6 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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