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.

Mostly Cloudy

47°F

8°C

Humidity 83%
Wind Speed W 7 mph
Barometer 29.94 in (1014.0 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Wind Chill44°F (7°C)
Last update 15 May 6:54 am EDT
Extended Forecast for

Castanea PA

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 71. West wind 5 to 7 mph becoming north in the afternoon.

    High: 71 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Calm wind.

    Low: 47 °F

    Decreasing
    Clouds

  • Saturday

    Saturday: Increasing clouds, with a high near 82. Calm wind becoming southwest 5 to 8 mph in the afternoon.

    High: 82 °F

    Increasing
    Clouds

  • Saturday Night

    Saturday Night: A chance of showers, mainly before 2am. Mostly cloudy, with a low around 60. Light west wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 60 °F

    Chance
    Showers

  • Sunday

    Sunday: A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 85. Light west wind. Chance of precipitation is 30%.

    High: 85 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers then
    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 64.

    Low: 64 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny and hot, with a high near 92.

    High: 92 °F

    Hot

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 71. West wind 5 to 7 mph becoming north in the afternoon.
Tonight
Mostly cloudy, then gradually becoming mostly clear, with a low around 47. Calm wind.
Saturday
Increasing clouds, with a high near 82. Calm wind becoming southwest 5 to 8 mph in the afternoon.
Saturday Night
A chance of showers, mainly before 2am. Mostly cloudy, with a low around 60. Light west wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of showers, with thunderstorms also possible after 5pm. Partly sunny, with a high near 85. Light west wind. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Monday
Sunny and hot, with a high near 92.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Mostly sunny and hot, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
Showers likely. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Wednesday Night
Showers likely. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.
Thursday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Castanea PA
 41.13°N 77.42°W (Elev. 597 ft)
Last Update:
2:39 am EDT May 15, 2026
Forecast Valid:
7am EDT May 15, 2026-6pm EDT May 21, 2026
 
Forecast Discussion
 
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Additional Resources

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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