National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Heavy Rain and Flooding Concerns in Hawaii; Severe Weather in the Plains

A storm system is expected to bring strong winds, widespread heavy rainfall, and flooding concerns to the Hawaiian Islands through the weekend. Strong to severe thunderstorms are forecast from the Southern Plains to the Mid-Missouri Valley Thursday afternoon and evening. Large hail and strong winds are the primary threats. Read More >

Current conditions at

Williamsport - Lycoming County Airport (KIPT)

Lat: 41.24°NLon: 76.92°WElev: 522ft.

Fair

42°F

6°C

Humidity 36%
Wind Speed NE 5 mph
Barometer 30.49 in (1032.7 mb)
Dewpoint 17°F (-8°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 9 Apr 1:54 am EDT
Extended Forecast for

4 Miles ESE Castanea PA

  • Overnight

    Overnight: Mostly clear, with a low around 33. South wind around 7 mph.

    Low: 33 °F

    Mostly Clear

  • Thursday

    Thursday: Widespread frost between 7am and 8am. Otherwise, sunny, with a high near 58. South wind 5 to 10 mph, with gusts as high as 21 mph.

    High: 58 °F

    Frost then
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 37. South wind around 6 mph becoming calm after midnight.

    Low: 37 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 71. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: A chance of showers before 2am. Mostly cloudy, with a low around 41. West wind around 7 mph becoming northwest after midnight. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 41 °F

    Chance
    Showers

  • Saturday

    Saturday: Sunny, with a high near 58.

    High: 58 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 36.

    Low: 36 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 63.

    High: 63 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 51.

    Low: 51 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 33. South wind around 7 mph.
Thursday
Widespread frost between 7am and 8am. Otherwise, sunny, with a high near 58. South wind 5 to 10 mph, with gusts as high as 21 mph.
Thursday Night
Partly cloudy, with a low around 37. South wind around 6 mph becoming calm after midnight.
Friday
Mostly sunny, with a high near 71. Light south wind becoming southwest 5 to 10 mph in the morning. Winds could gust as high as 21 mph.
Friday Night
A chance of showers before 2am. Mostly cloudy, with a low around 41. West wind around 7 mph becoming northwest after midnight. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Sunny, with a high near 58.
Saturday Night
Mostly clear, with a low around 36.
Sunday
Partly sunny, with a high near 63.
Sunday Night
Mostly cloudy, with a low around 51.
Monday
Mostly cloudy, with a high near 72.
Monday Night
Mostly cloudy, with a low around 58.
Tuesday
Partly sunny, with a high near 79.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Wednesday
A chance of showers. Mostly cloudy, with a high near 78. Chance of precipitation is 30%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
4 Miles ESE Castanea PA
 41.1°N 77.37°W (Elev. 1522 ft)
Last Update:
2:37 am EDT Apr 9, 2026
Forecast Valid:
2am EDT Apr 9, 2026-6pm EDT Apr 15, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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