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

57°F

14°C

Humidity 67%
Wind Speed N 9 mph
Barometer 30.14 in (1020.4 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 15 Oct 3:54 am EDT
Extended Forecast for

Castanea PA

  • Today

    Today: Partly sunny, with a high near 66. North wind around 5 mph becoming calm in the morning.

    High: 66 °F

    Partly Sunny

  • Tonight

    Tonight: Rain and possibly a thunderstorm. Low around 55. Light and variable wind becoming south around 6 mph in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Slight Chance
    Rain then
    Rain

  • Friday

    Friday: Rain and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 77. South wind 7 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Chance Rain
    then Showers

  • Friday Night

    Friday Night: A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 41. Northwest wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 41 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 51. North wind 10 to 13 mph, with gusts as high as 24 mph.

    High: 51 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 3am. Otherwise, clear, with a low around 32.

    Low: 32 °F

    Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 59.

    High: 59 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Areas of frost after 4am. Otherwise, mostly clear, with a low around 35.

    Low: 35 °F

    Mostly Clear
    then Areas
    Frost

  • Monday

    Monday: Areas of frost before 9am. Otherwise, sunny, with a high near 62.

    High: 62 °F

    Areas Frost
    then Sunny

Detailed Forecast

Today
Partly sunny, with a high near 66. North wind around 5 mph becoming calm in the morning.
Tonight
Rain and possibly a thunderstorm. Low around 55. Light and variable wind becoming south around 6 mph in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Rain and thunderstorms before 4pm, then showers likely and possibly a thunderstorm between 4pm and 5pm, then a chance of showers and thunderstorms after 5pm. High near 77. South wind 7 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 41. Northwest wind 11 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 51. North wind 10 to 13 mph, with gusts as high as 24 mph.
Saturday Night
Widespread frost, mainly after 3am. Otherwise, clear, with a low around 32.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 59.
Sunday Night
Areas of frost after 4am. Otherwise, mostly clear, with a low around 35.
Monday
Areas of frost before 9am. Otherwise, sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 40.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Sunny, with a high near 65.
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ABOUT THIS FORECAST

 
Point Forecast:
Castanea PA
 41.13°N 77.42°W (Elev. 597 ft)
Last Update:
3:11 am EDT Oct 15, 2026
Forecast Valid:
4am EDT Oct 15, 2026-6pm EDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation