Crystal Lake Weather Forecast

    • 55
    • 75

    Sunny

    • 63
    • 79

    Mostly Sunny

    • 66
    • 83

    Mostly Sunny

    • 66
    • 83

    Chance Thunderstorms

    • 63
    • 80

    Chance Thunderstorms

    • 64
    • 80

    Chance Thunderstorms

    • 64
    • 77

    Rain Showers Likely

Today 4 Jul Sullivan

Sunny. Near steady temperature in the mid 70s. North Winds around 5 Mph.

Tonight 4 Jul Sullivan

Mostly clear. Lows in the mid 50s. Northeast Winds around 5 Mph this Evening, becoming light and variable.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Crystal Lake Temperature Statistics

July Temperature

Williamsport - Lycoming County Airport (14.3 miles)

  • Lowest 2 July, 2025

    66.9 °F

  • Average July

    77.3 °F

  • Highest 2 July, 2025

    88 °F

Climate (2020–Present)

Williamsport - Lycoming County Airport (14.3 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2020–2025

    44 °F

  • Average 2020–2025

    53.1 °F

  • Average High 2020–2025

    63.4 °F
Get WillyWeather+ to remove ads