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

40°F

4°C

Humidity 77%
Wind Speed S 3 mph
Barometer 30.12 in (1020.5 mb)
Dewpoint 33°F (1°C)
Visibility 9.00 mi
Last update 20 Nov 10:54 pm EST
Extended Forecast for

South Branch PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 34. Southwest wind 3 to 5 mph.

    Low: 34 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 51. Southwest wind 5 to 7 mph.

    High: 51 °F

    Partly Sunny

  • Friday Night

    Friday Night: A chance of showers. Mostly cloudy, with a low around 36. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 44. North wind around 7 mph.

    High: 44 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 27. North wind around 5 mph becoming calm in the evening.

    Low: 27 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 48.

    High: 48 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 33.

    Low: 33 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 50.

    High: 50 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Mostly cloudy, with a low around 34. Southwest wind 3 to 5 mph.
Friday
Partly sunny, with a high near 51. Southwest wind 5 to 7 mph.
Friday Night
A chance of showers. Mostly cloudy, with a low around 36. Calm wind becoming northwest around 5 mph after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Partly sunny, with a high near 44. North wind around 7 mph.
Saturday Night
Partly cloudy, with a low around 27. North wind around 5 mph becoming calm in the evening.
Sunday
Mostly sunny, with a high near 48.
Sunday Night
Partly cloudy, with a low around 33.
Monday
Mostly sunny, with a high near 50.
Monday Night
Mostly cloudy, with a low around 34.
Tuesday
Showers likely, mainly after 1pm. Mostly cloudy, with a high near 50. Chance of precipitation is 60%.
Tuesday Night
Showers likely. Mostly cloudy, with a low around 43. Chance of precipitation is 70%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 57. Chance of precipitation is 30%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 34. Chance of precipitation is 30%.
Thanksgiving Day
Partly sunny, with a high near 44.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
South Branch PA
 41.65°N 76.45°W (Elev. 1099 ft)
Last Update:
5:45 pm EST Nov 20, 2025
Forecast Valid:
11pm EST Nov 20, 2025-6pm EST Nov 27, 2025
 
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