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

64°F

18°C

Humidity 48%
Wind Speed E 5 mph
Barometer 30.26 in (1024.8 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 22 May 5:54 pm EDT
Extended Forecast for

South Williamsport PA

  • Tonight

    Tonight: Rain, mainly after 10pm. Low around 46. Southeast wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 46 °F

    Rain Likely
    then Rain

  • Saturday

    Saturday: Rain. High near 48. Southeast wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.

    High: 48 °F

    Rain

  • Saturday Night

    Saturday Night: Rain. Low around 46. Southeast wind 11 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 46 °F

    Rain

  • Sunday

    Sunday: Rain likely before 2pm. Cloudy, with a high near 63. Southeast wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 63 °F

    Rain Likely

  • Sunday Night

    Sunday Night: Showers likely, mainly after 2am. Patchy fog after 1am. Otherwise, cloudy, with a low around 55. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 55 °F

    Showers
    Likely and
    Patchy Fog

  • Memorial Day

    Memorial Day: Showers likely, with thunderstorms also possible after 2pm. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 75. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers
    Likely and
    Patchy Fog

  • Monday Night

    Monday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers then
    Mostly Cloudy

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 80.

    High: 80 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 56.

    Low: 56 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain, mainly after 10pm. Low around 46. Southeast wind 7 to 9 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 48. Southeast wind around 11 mph, with gusts as high as 26 mph. Chance of precipitation is 100%. New precipitation amounts between three quarters and one inch possible.
Saturday Night
Rain. Low around 46. Southeast wind 11 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New precipitation amounts between a quarter and half of an inch possible.
Sunday
Rain likely before 2pm. Cloudy, with a high near 63. Southeast wind around 6 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night
Showers likely, mainly after 2am. Patchy fog after 1am. Otherwise, cloudy, with a low around 55. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Memorial Day
Showers likely, with thunderstorms also possible after 2pm. Patchy fog before 7am. Otherwise, mostly cloudy, with a high near 75. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 55. Chance of precipitation is 30%.
Tuesday
Mostly cloudy, with a high near 80.
Tuesday Night
Mostly cloudy, with a low around 56.
Wednesday
Partly sunny, with a high near 81.
Wednesday Night
Partly cloudy, with a low around 55.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 52.
Friday
Mostly sunny, with a high near 73.
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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:
2:21 pm EDT May 22, 2026
Forecast Valid:
6pm EDT May 22, 2026-6pm EDT May 29, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation