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

75°F

24°C

Humidity 69%
Wind Speed NW 12 G 18 mph
Barometer 29.78 in (1008.0 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 3 Aug 9:54 am EDT
Extended Forecast for

Castanea PA

  • Today

    Today: Mostly sunny, with a high near 81. Northwest wind 6 to 8 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, mostly clear, with a low around 58. Light and variable wind.

    Low: 58 °F

    Mostly Clear
    then Patchy
    Fog

  • Tuesday

    Tuesday: Areas of fog before 10am. Otherwise, sunny, with a high near 84. Calm wind.

    High: 84 °F

    Areas Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A slight chance of showers after 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 85. Light and variable wind. Chance of precipitation is 20%.

    High: 85 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms, mainly between 8pm and 2am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 68. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: Showers and possibly a thunderstorm, mainly after 2pm. Patchy fog before 8am. High near 86. Chance of precipitation is 80%.

    High: 86 °F

    Chance
    Showers and
    Patchy Fog
    then Showers

  • Thursday Night

    Thursday Night: Showers and possibly a thunderstorm before 8pm. Low around 68. Chance of precipitation is 80%.

    Low: 68 °F

    Showers then
    Partly Cloudy

  • Friday

    Friday: Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.

    High: 86 °F

    Mostly Sunny
    then Showers
    Likely

Detailed Forecast

Today
Mostly sunny, with a high near 81. Northwest wind 6 to 8 mph.
Tonight
Patchy fog after 1am. Otherwise, mostly clear, with a low around 58. Light and variable wind.
Tuesday
Areas of fog before 10am. Otherwise, sunny, with a high near 84. Calm wind.
Tuesday Night
Partly cloudy, with a low around 62. Calm wind.
Wednesday
A slight chance of showers after 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 85. Light and variable wind. Chance of precipitation is 20%.
Wednesday Night
A chance of showers and thunderstorms, mainly between 8pm and 2am. Patchy fog after 4am. Otherwise, mostly cloudy, with a low around 68. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and possibly a thunderstorm, mainly after 2pm. Patchy fog before 8am. High near 86. Chance of precipitation is 80%.
Thursday Night
Showers and possibly a thunderstorm before 8pm. Low around 68. Chance of precipitation is 80%.
Friday
Showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Friday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 40%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Castanea PA
 41.13°N 77.42°W (Elev. 597 ft)
Last Update:
8:06 am EDT Aug 3, 2026
Forecast Valid:
9am EDT Aug 3, 2026-6pm EDT Aug 9, 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