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.

Mostly Cloudy

70°F

21°C

Humidity 79%
Wind Speed Calm
Barometer 29.72 in (1005.8 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Last update 28 Jul 1:54 am EDT
Extended Forecast for

South Williamsport PA

  • Overnight

    Overnight: Showers and thunderstorms likely, mainly before 3am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 64 °F

    T-storms
    Likely

  • Tuesday

    Tuesday: Showers and possibly a thunderstorm. High near 76. South wind 7 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 76 °F

    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers and thunderstorms before 3am, then a slight chance of showers after 5am. Mostly cloudy, then gradually becoming mostly clear, with a low around 63. Northwest wind 5 to 9 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 63 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 75. Northwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: A chance of showers, mainly before 2am. Mostly cloudy, with a low around 63. Northwest wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 63 °F

    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, with thunderstorms also possible after 5pm. Mostly sunny, with a high near 77. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 81.

    High: 81 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

Detailed Forecast

Overnight
Showers and thunderstorms likely, mainly before 3am, then showers likely and possibly a thunderstorm after 5am. Mostly cloudy, with a low around 64. Calm wind. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers and possibly a thunderstorm. High near 76. South wind 7 to 9 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Tuesday Night
A chance of showers and thunderstorms before 3am, then a slight chance of showers after 5am. Mostly cloudy, then gradually becoming mostly clear, with a low around 63. Northwest wind 5 to 9 mph. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 75. Northwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 63. Northwest wind 14 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A slight chance of showers, with thunderstorms also possible after 5pm. Mostly sunny, with a high near 77. Chance of precipitation is 20%.
Thursday Night
Partly cloudy, with a low around 61.
Friday
Mostly sunny, with a high near 81.
Friday Night
Partly cloudy, with a low around 61.
Saturday
Partly sunny, with a high near 82.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 30%.
Sunday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 81. Chance of precipitation is 60%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 64. Chance of precipitation is 60%.
Monday
Mostly sunny, with a high near 81.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Williamsport PA
 41.22°N 77°W (Elev. 1247 ft)
Last Update:
2:36 am EDT Jul 28, 2026
Forecast Valid:
2am EDT Jul 28, 2026-6pm EDT Aug 3, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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