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.

Overcast

80°F

27°C

Humidity 56%
Wind Speed S 12 G 21 mph
Barometer 29.80 in (1008.8 mb)
Dewpoint 63°F (17°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 13 Oct 6:54 pm EDT
Extended Forecast for

South Williamsport PA

  • Tonight

    Tonight: Partly cloudy, with a low around 63. West wind 3 to 7 mph.

    Low: 63 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers. Partly sunny, with a high near 77. Calm wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 20%.

    High: 77 °F

    Slight Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 51. North wind 6 to 8 mph.

    Low: 51 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 67. North wind around 5 mph becoming calm in the morning.

    High: 67 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Showers. Low around 56. Light southeast wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 56 °F

    Showers
    Likely then
    Showers

  • Friday

    Friday: Showers, mainly before 2pm. High near 71. Breezy. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 71 °F

    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 38. Breezy. Chance of precipitation is 30%.

    Low: 38 °F

    Breezy.
    Chance
    Showers then
    Mostly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 49. Breezy.

    High: 49 °F

    Mostly Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33.

    Low: 33 °F

    Mostly Clear
    then Frost

Detailed Forecast

Tonight
Partly cloudy, with a low around 63. West wind 3 to 7 mph.
Wednesday
A slight chance of showers. Partly sunny, with a high near 77. Calm wind becoming west 5 to 9 mph in the morning. Chance of precipitation is 20%.
Wednesday Night
Mostly cloudy, with a low around 51. North wind 6 to 8 mph.
Thursday
Mostly sunny, with a high near 67. North wind around 5 mph becoming calm in the morning.
Thursday Night
Showers. Low around 56. Light southeast wind increasing to 8 to 13 mph in the evening. Winds could gust as high as 23 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday
Showers, mainly before 2pm. High near 71. Breezy. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 38. Breezy. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 49. Breezy.
Saturday Night
Widespread frost, mainly after 5am. Otherwise, mostly clear, with a low around 33.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 60.
Sunday Night
Mostly clear, with a low around 36.
Monday
Patchy frost. Otherwise, mostly sunny, with a high near 63.
Monday Night
Mostly cloudy, with a low around 42.
Tuesday
Partly sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Williamsport PA
 41.24°N 76.99°W (Elev. 492 ft)
Last Update:
6:36 pm EDT Oct 13, 2026
Forecast Valid:
6pm EDT Oct 13, 2026-6pm EDT Oct 20, 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