Muncy Valley Weather Forecast

    • 70
    • 93

    Mostly Sunny

    • 67
    • 94

    Slight Chance Thunderstorms

    • 63
    • 89

    Partly Sunny

    • 63
    • 87

    Partly Sunny

    • 64
    • 85

    Rain Showers Likely

    • 61
    • 83

    Chance Thunderstorms

Today 14 Jul Sullivan

Sunny, hot with Highs around 90. West Winds 5 to 10 Mph.

Tonight 14 Jul Sullivan

Mostly clear. Warm with Lows around 70. West Winds 5 to 10 Mph.

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Muncy Valley Temperature Statistics

July Temperature

Williamsport - Lycoming County Airport (18.6 miles)

  • Lowest 10 July, 2026

    66.7 °F

  • Average July

    80.1 °F

  • Highest 2 July, 2026

    100.7 °F

Climate (2021–2026)

Williamsport - Lycoming County Airport (18.6 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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