Crystal Lake Weather Forecast

    • 40
    • 61

    Increasing Clouds

    • 56
    • 68

    Rain Showers Likely

    • 51
    • 73

    Rain Showers

    • 41
    • 61

    Rain Showers Likely

    • 43
    • 58

    Partly Sunny

    • 45
    • 62

    Chance Rain Showers

Today 30 Apr Sullivan

Partly sunny in the Morning, then clearing. Much cooler with Highs around 60. North Winds 10 to 15 Mph.

Tonight 30 Apr Sullivan

Mostly clear in the Evening, then becoming partly cloudy. Lows in the upper 30s. Northeast Winds around 5 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

April Temperature

Williamsport - Lycoming County Airport (14.3 miles)

  • Lowest 9 April, 2025

    25.8 °F

  • Average April

    52.9 °F

  • Highest 19 April, 2025

    89.7 °F

Climate (2020–Present)

Williamsport - Lycoming County Airport (14.3 miles)

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  • Average Low 2020–2025

    43.9 °F

  • Average 2020–2025

    53 °F

  • Average High 2020–2025

    63.3 °F
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