Williamsport Weather Forecast

    • 66
    • 88

    Chance Rain Showers

    • 58
    • 81

    Partly Sunny

    • 51
    • 73

    Mostly Sunny

    • 58
    • 77

    Partly Sunny

    • 51
    • 77

    Partly Sunny

    • 58
    • 76

    Slight Chance Rain Showers

    • 62
    • 82

    Partly Sunny

Today 23 Sep Southern Lycoming

Showers likely with a slight chance of Thunderstorms. Highs around 80. Southwest Winds around 10 Mph. Chance of rain 60 percent.

Tonight 23 Sep Southern Lycoming

Mostly cloudy with a chance of Showers with a slight chance of Thunderstorms in the Evening, then partly cloudy with a slight chance of Showers after midnight. Lows in the mid 50s. West Winds 5 to 10 Mph. Chance of rain 50 percent.

Graph Plots Open in Graphs
  • Temperature Forecast NOAA

  • Temperature Real-Time

Williamsport Temperature Statistics

September Temperature

Williamsport - Lycoming County Airport (3.7 miles)

  • Lowest 20 September, 2019

    44.1 °F
  • Average September

    65.1 °F
  • Highest 11 September, 2019

    91.9 °F

Climate (2010–Present)

Williamsport - Lycoming County Airport (3.7 miles)

Take a look at our website widgetsAvailable free! Find Out More
  • Average Low 2010–Present

    44.4 °F
  • Average 2010–Present

    53 °F
  • Average High 2010–Present

    62.8 °F
Get an account to remove ads