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

Hazardous Weather Conditions

Current conditions at

Williamsport - Lycoming County Airport (KIPT)

Lat: 41.24°NLon: 76.92°WElev: 522ft.

A Few Clouds

52°F

11°C

Humidity 89%
Wind Speed Calm
Barometer 29.83 in (1010.2 mb)
Dewpoint 49°F (9°C)
Visibility 10.00 mi
Last update 11 Mar 9:54 am EDT
Extended Forecast for

South Williamsport PA

  • Today

    Today: Showers and thunderstorms, mainly before 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could be severe. High near 70. South wind 7 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 70 °F

    Showers then
    Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 3am, then a chance of showers. Some of the storms could be severe. Low around 36. South wind 11 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 36 °F

    Severe
    Thunderstorms
    then Showers
    Likely

  • Thursday

    Thursday: Mostly cloudy, with a high near 41. Northwest wind around 16 mph, with gusts as high as 38 mph.

    High: 41 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 28. Northwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 20 mph.

    Low: 28 °F

    Mostly Clear

  • Friday

    Friday: A slight chance of snow before 11am, then a slight chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Mostly cloudy, with a high near 47. Breezy, with a south wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 47 °F

    Chance
    Rain/Snow and
    Breezy

  • Friday Night

    Friday Night: A chance of rain, mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 30. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 30 °F

    Chance
    Rain/Snow

  • Saturday

    Saturday: Mostly sunny, with a high near 43.

    High: 43 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A chance of snow showers after 2am. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.

    Low: 29 °F

    Mostly Cloudy
    then Chance
    Snow Showers

  • Sunday

    Sunday: A chance of rain and snow showers before 2pm. Cloudy, with a high near 50. Chance of precipitation is 30%.

    High: 50 °F

    Chance
    Rain/Snow

Detailed Forecast

Today
Showers and thunderstorms, mainly before 5pm, then showers likely and possibly a thunderstorm after 5pm. Some of the storms could be severe. High near 70. South wind 7 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and possibly a thunderstorm before 3am, then a chance of showers. Some of the storms could be severe. Low around 36. South wind 11 to 14 mph, with gusts as high as 31 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
Mostly cloudy, with a high near 41. Northwest wind around 16 mph, with gusts as high as 38 mph.
Thursday Night
Mostly clear, with a low around 28. Northwest wind 5 to 10 mph becoming light west after midnight. Winds could gust as high as 20 mph.
Friday
A slight chance of snow before 11am, then a slight chance of rain and snow between 11am and 2pm, then a chance of rain after 2pm. Mostly cloudy, with a high near 47. Breezy, with a south wind 6 to 11 mph increasing to 16 to 21 mph in the afternoon. Winds could gust as high as 36 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of rain, mixing with snow after 11pm, then gradually ending. Mostly cloudy, with a low around 30. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 43.
Saturday Night
A chance of snow showers after 2am. Mostly cloudy, with a low around 29. Chance of precipitation is 30%.
Sunday
A chance of rain and snow showers before 2pm. Cloudy, with a high near 50. Chance of precipitation is 30%.
Sunday Night
Showers, mainly after 2am. Low around 41. Breezy. Chance of precipitation is 80%.
Monday
Rain and snow showers. High near 51. Breezy. Chance of precipitation is 80%.
Monday Night
A chance of rain and snow showers. Partly cloudy, with a low around 22. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Williamsport PA
 41.22°N 77.02°W (Elev. 856 ft)
Last Update:
10:36 am EDT Mar 11, 2026
Forecast Valid:
10am EDT Mar 11, 2026-6pm EDT Mar 17, 2026
 
Forecast Discussion
 
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Additional Resources

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National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation