Rose Valley Lake Weather Forecast

    • 51
    • 66

    Increasing Clouds

    • 37
    • 60

    Partly Sunny

    • 39
    • 58

    Partly Sunny

    • 41
    • 60

    Mostly Cloudy

    • 44
    • 62

    Mostly Cloudy

    • 46
    • 62

    Mostly Cloudy

Today 29 Oct Northern Lycoming

Patchy fog in the morning. Mostly sunny. Highs in the upper 60s. South Winds 5 to 10 Mph.

Tonight 29 Oct Northern Lycoming

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 50s. Southwest Winds 5 to 10 Mph.

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Rose Valley Lake Temperature Statistics

October Temperature

Williamsport - Lycoming County Airport (10.6 miles)

  • Lowest 25 October, 2026

    30 °F

  • Average October

    55.8 °F

  • Highest 13 October, 2026

    84.7 °F

Climate (2021–2026)

Williamsport - Lycoming County Airport (10.6 miles)

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  • Average Low 2021–2026

    43.4 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    63.3 °F
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