News Headlines
- When does the first frost occur in Central PA? See when the first 36 degree temperatures typically occur.
- A 5th tornado has been determined to have occurred in Central PA (Burnside Twp in northern Centre County) on July 18th, 2026. See details.
- See information on the Cyclone (PA) Tornado of Sept 9th, 2026
Current conditions at
Williamsport - Lycoming County Airport (KIPT)
Lat: 41.24°NLon: 76.92°WElev: 522ft.
Fair
51°F
11°C
| Humidity | 92% |
| Wind Speed | Calm |
| Barometer | 30.39 in (1029.2 mb) |
| Dewpoint | 49°F (9°C) |
| Visibility | 10.00 mi |
| Last update | 23 Sep 2:54 am EDT |
Extended Forecast for
Castanea PA
Overnight
Low: 50 °F
Mostly Cloudy
Wednesday
High: 65 °F
Becoming
SunnyWednesday Night
Low: 45 °F
Mostly Clear
Thursday
High: 69 °F
Sunny
Thursday Night
Low: 45 °F
Mostly Clear
Friday
High: 72 °F
Sunny
Friday Night
Low: 49 °F
Partly Cloudy
Saturday
High: 72 °F
Mostly Sunny
Saturday Night
Low: 51 °F
Partly Cloudy
Detailed Forecast
Overnight
Mostly cloudy, with a low around 50. Northeast wind around 5 mph.
Wednesday
Mostly cloudy through mid morning, then gradual clearing, with a high near 65. Northeast wind 6 to 8 mph.
Wednesday Night
Mostly clear, with a low around 45. East wind 3 to 5 mph.
Thursday
Sunny, with a high near 69. Northeast wind around 6 mph.
Thursday Night
Mostly clear, with a low around 45. Northeast wind 3 to 5 mph.
Friday
Sunny, with a high near 72.
Friday Night
Partly cloudy, with a low around 49.
Saturday
Mostly sunny, with a high near 72.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 50.
Monday
Mostly sunny, with a high near 73.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Sunny, with a high near 76.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
Castanea PA
41.13°N 77.42°W (Elev. 597 ft)
41.13°N 77.42°W (Elev. 597 ft)
2:21 am EDT Sep 23, 2026
3am EDT Sep 23, 2026-6pm EDT Sep 29, 2026
Additional Resources
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