National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Williamsport - Lycoming County Airport (KIPT)

Lat: 41.24°NLon: 76.92°WElev: 522ft.

Fair

21°F

-6°C

Humidity 57%
Wind Speed NW 7 mph
Barometer 30.26 in (1025.2 mb)
Dewpoint 8°F (-13°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 18 Mar 1:54 am EDT
Extended Forecast for

South Williamsport PA

  • Overnight

    Overnight: Mostly clear, with a low around 18. Calm wind.

    Low: 18 °F

    Mostly Clear

  • Wednesday

    Wednesday: Increasing clouds, with a high near 38. Calm wind becoming south around 6 mph in the afternoon.

    High: 38 °F

    Increasing
    Clouds

  • Wednesday Night

    Wednesday Night: Increasing clouds, with a low around 26. Light south wind.

    Low: 26 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Mostly cloudy, with a high near 45. South wind 5 to 7 mph.

    High: 45 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A slight chance of rain after 2am, mixing with snow after 5am. Mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 20%.

    Low: 30 °F

    Mostly Cloudy
    then Slight
    Chance
    Rain/Snow

  • Friday

    Friday: A slight chance of snow before 8am, then a chance of rain after 2pm. Mostly cloudy, with a high near 52. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 52 °F

    Partly Sunny
    then Chance
    Rain

  • Friday Night

    Friday Night: Showers likely. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.

    Low: 40 °F

    Showers
    Likely

  • Saturday

    Saturday: Mostly cloudy, with a high near 58.

    High: 58 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 39.

    Low: 39 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 18. Calm wind.
Wednesday
Increasing clouds, with a high near 38. Calm wind becoming south around 6 mph in the afternoon.
Wednesday Night
Increasing clouds, with a low around 26. Light south wind.
Thursday
Mostly cloudy, with a high near 45. South wind 5 to 7 mph.
Thursday Night
A slight chance of rain after 2am, mixing with snow after 5am. Mostly cloudy, with a low around 30. Calm wind. Chance of precipitation is 20%.
Friday
A slight chance of snow before 8am, then a chance of rain after 2pm. Mostly cloudy, with a high near 52. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers likely. Mostly cloudy, with a low around 40. Chance of precipitation is 60%.
Saturday
Mostly cloudy, with a high near 58.
Saturday Night
Mostly cloudy, with a low around 39.
Sunday
A chance of showers after 8am. Mostly cloudy, with a high near 61. Chance of precipitation is 40%.
Sunday Night
A chance of showers. Mostly cloudy, with a low around 33. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 44.
Monday Night
Partly cloudy, with a low around 24.
Tuesday
Mostly sunny, with a high near 46.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Williamsport PA
 41.24°N 77.02°W (Elev. 594 ft)
Last Update:
2:07 am EDT Mar 18, 2026
Forecast Valid:
2am EDT Mar 18, 2026-6pm EDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation