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.

Fog/Mist

36°F

2°C

Humidity 97%
Wind Speed Calm
Barometer 30.17 in (1022.2 mb)
Dewpoint 35°F (2°C)
Visibility 6.00 mi
Last update 9 Jan 11:54 pm EST
Extended Forecast for

South Branch PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 32. North wind 3 to 8 mph. Winds could gust as high as 20 mph.

    Low: 32 °F

    Mostly Cloudy

  • Saturday

    Saturday: Showers likely, mainly after 2pm. Mostly cloudy, with a high near 42. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 42 °F

    Mostly Cloudy
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers, mainly before 11pm. Low around 31. Southeast wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 31 °F

    Showers then
    Slight Chance
    Showers

  • Sunday

    Sunday: A slight chance of snow showers after 1pm. Increasing clouds, with a high near 36. West wind 11 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.

    High: 36 °F

    Sunny then
    Slight Chance
    Snow Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 25. Blustery, with a northwest wind 13 to 20 mph, with gusts as high as 41 mph.

    Low: 25 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Monday

    Monday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 28.

    Low: 28 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 41.

    High: 41 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 32. North wind 3 to 8 mph. Winds could gust as high as 20 mph.
Saturday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 42. Calm wind becoming southeast around 6 mph in the afternoon. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday Night
Showers, mainly before 11pm. Low around 31. Southeast wind 6 to 10 mph becoming west after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Sunday
A slight chance of snow showers after 1pm. Increasing clouds, with a high near 36. West wind 11 to 15 mph, with gusts as high as 33 mph. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 25. Blustery, with a northwest wind 13 to 20 mph, with gusts as high as 41 mph.
Monday
Partly sunny, with a high near 37.
Monday Night
Mostly cloudy, with a low around 28.
Tuesday
Partly sunny, with a high near 41.
Tuesday Night
Mostly cloudy, with a low around 35.
Wednesday
A chance of showers after 1pm. Mostly cloudy, with a high near 43. Chance of precipitation is 30%.
Wednesday Night
A chance of rain and snow showers. Mostly cloudy, with a low around 21. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 27.
Thursday Night
Mostly cloudy, with a low around 15.
Friday
Partly sunny, with a high near 28.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
South Branch PA
 41.65°N 76.45°W (Elev. 1099 ft)
Last Update:
12:19 am EST Jan 10, 2026
Forecast Valid:
12am EST Jan 10, 2026-6pm EST Jan 16, 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