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.

Light Rain

67°F

19°C

Humidity 71%
Wind Speed W 9 mph
Barometer 29.83 in (1009.8 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 20 Jun 8:54 pm EDT
Extended Forecast for

Castanea PA

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 56. Calm wind.

    Low: 56 °F

    Partly Cloudy
    then Patchy
    Fog

  • Sunday

    Sunday: Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 81. West wind 3 to 7 mph.

    High: 81 °F

    Patchy Fog
    then Mostly
    Sunny

  • Sunday Night

    Sunday Night: A chance of showers, mainly after 5am. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 58 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers, with thunderstorms also possible after 2pm. Some of the storms could produce heavy rainfall. High near 73. East wind 3 to 6 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 73 °F

    Heavy Rain

  • Monday Night

    Monday Night: Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 59. Light north wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers

  • Tuesday

    Tuesday: A chance of showers before 8am. Partly sunny, with a high near 80. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 80 °F

    Chance
    Showers then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 83.

    High: 83 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy

Detailed Forecast

Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 56. Calm wind.
Sunday
Patchy fog between 7am and 8am. Otherwise, mostly sunny, with a high near 81. West wind 3 to 7 mph.
Sunday Night
A chance of showers, mainly after 5am. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday
Showers, with thunderstorms also possible after 2pm. Some of the storms could produce heavy rainfall. High near 73. East wind 3 to 6 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Monday Night
Showers and possibly a thunderstorm before 2am, then a chance of showers. Low around 59. Light north wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers before 8am. Partly sunny, with a high near 80. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Mostly clear, with a low around 55.
Wednesday
Sunny, with a high near 83.
Wednesday Night
Partly cloudy, with a low around 59.
Thursday
Showers likely and possibly a thunderstorm, mainly after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 60%.
Thursday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 60. Chance of precipitation is 60%.
Friday
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Saturday
Mostly sunny, with a high near 83.
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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:
8:11 pm EDT Jun 20, 2026
Forecast Valid:
9pm EDT Jun 20, 2026-6pm EDT Jun 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation