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.

Light Rain

67°F

19°C

Humidity 81%
Wind Speed S 9 mph
Barometer 29.64 in (1003.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 11 Mar 6:54 pm EDT
Extended Forecast for

South Williamsport PA

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 36. Southwest wind 7 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Showers

  • Thursday

    Thursday: Cloudy, then gradually becoming mostly sunny, with a high near 42. Northwest wind around 16 mph, with gusts as high as 32 mph.

    High: 42 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: A chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Mostly cloudy, with a high near 48. South wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 30%.

    High: 48 °F

    Chance
    Rain/Snow

  • Friday Night

    Friday Night: Partly cloudy, with a low around 32. West wind around 11 mph, with gusts as high as 32 mph.

    Low: 32 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 46.

    High: 46 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 29.

    Low: 29 °F

    Mostly Cloudy

  • Sunday

    Sunday: Cloudy, with a high near 50.

    High: 50 °F

    Cloudy

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Chance
    Showers then
    Showers
    Likely

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 36. Southwest wind 7 to 13 mph, with gusts as high as 29 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Thursday
Cloudy, then gradually becoming mostly sunny, with a high near 42. Northwest wind around 16 mph, with gusts as high as 32 mph.
Thursday Night
Mostly clear, with a low around 28. Northwest wind 5 to 9 mph becoming calm after midnight.
Friday
A chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Mostly cloudy, with a high near 48. South wind 5 to 10 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 38 mph. Chance of precipitation is 30%.
Friday Night
Partly cloudy, with a low around 32. West wind around 11 mph, with gusts as high as 32 mph.
Saturday
Sunny, with a high near 46.
Saturday Night
Mostly cloudy, with a low around 29.
Sunday
Cloudy, with a high near 50.
Sunday Night
Showers likely, mainly after 2am. Cloudy, with a low around 45. Chance of precipitation is 70%.
Monday
Showers likely, mainly before 2pm. Cloudy, with a high near 54. Chance of precipitation is 70%.
Monday Night
A chance of showers. Partly cloudy, with a low around 23. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 33.
Tuesday Night
Mostly clear, with a low around 18.
Wednesday
Mostly sunny, with a high near 37.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Williamsport PA
 41.24°N 76.99°W (Elev. 492 ft)
Last Update:
6:56 pm EDT Mar 11, 2026
Forecast Valid:
7pm EDT Mar 11, 2026-6pm EDT Mar 18, 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