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

46°F

8°C

Humidity 42%
Wind Speed E 17 G 31 mph
Barometer 30.11 in (1020.0 mb)
Dewpoint 24°F (-4°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 15 Mar 6:54 pm EDT
Extended Forecast for

Castanea PA

  • Tonight

    Tonight: Showers, mainly after midnight. Low around 45. Southeast wind 10 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 45 °F

    Chance
    Showers then
    Showers

  • Monday

    Monday: A chance of showers, then showers and possibly a thunderstorm after 11am. Some of the storms could be severe. High near 68. South wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 68 °F

    Severe
    Thunderstorms

  • Monday Night

    Monday Night: Rain showers, snow showers, and sleet, becoming all snow after 11pm. Low around 22. West wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow and sleet accumulation of less than a half inch possible.

    Low: 22 °F

    Wintry Mix
    then Snow
    Showers

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 32. West wind around 14 mph, with gusts as high as 28 mph.

    High: 32 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 18. West wind 5 to 9 mph, with gusts as high as 20 mph.

    Low: 18 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 38.

    High: 38 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 25.

    Low: 25 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 45.

    High: 45 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 33.

    Low: 33 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers, mainly after midnight. Low around 45. Southeast wind 10 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Monday
A chance of showers, then showers and possibly a thunderstorm after 11am. Some of the storms could be severe. High near 68. South wind 10 to 14 mph, with gusts as high as 29 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Rain showers, snow showers, and sleet, becoming all snow after 11pm. Low around 22. West wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow and sleet accumulation of less than a half inch possible.
Tuesday
Mostly cloudy, with a high near 32. West wind around 14 mph, with gusts as high as 28 mph.
Tuesday Night
Partly cloudy, with a low around 18. West wind 5 to 9 mph, with gusts as high as 20 mph.
Wednesday
Partly sunny, with a high near 38.
Wednesday Night
Mostly cloudy, with a low around 25.
Thursday
Mostly cloudy, with a high near 45.
Thursday Night
Mostly cloudy, with a low around 33.
Friday
Mostly cloudy, with a high near 53.
Friday Night
A chance of showers. Mostly cloudy, with a low around 36. Chance of precipitation is 40%.
Saturday
A chance of showers. Mostly cloudy, with a high near 55. Chance of precipitation is 30%.
Saturday Night
Partly cloudy, with a low around 34.
Sunday
Partly sunny, with a high near 51.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Castanea PA
 41.13°N 77.42°W (Elev. 597 ft)
Last Update:
3:06 pm EDT Mar 15, 2026
Forecast Valid:
7pm EDT Mar 15, 2026-6pm EDT Mar 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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