Hawaii and Guam Concerns; Record Warmth Spreads Eastward; Heavy Snow for Sierra-Nevada; Severe Weather for the Plains

A very active spring pattern with tropical concerns across the Pacific. Heavy rainfall will continue to impact Hawaii this weekend. Meanwhile we continue to monitor a developing typhoon that may affect Guam into early next week. For the Lower 48, heavy snow for mountains of California this weekend, increase threat for severe thunderstorms next week for the Plains and record warmth spreads east. Read More >

Current conditions at

Williamsport - Lycoming County Airport (KIPT)

Lat: 41.24°NLon: 76.92°WElev: 522ft.

Overcast

48°F

9°C

Humidity 74%
Wind Speed NW 14 G 21 mph
Barometer 30.23 in (1023.8 mb)
Dewpoint 40°F (4°C)
Visibility 10.00 mi
Wind Chill42°F (6°C)
Last update 11 Apr 4:54 am EDT
Extended Forecast for

South Williamsport PA

  • Today

    Today: Partly sunny, then gradually becoming sunny, with a high near 59. Northwest wind 7 to 9 mph.

    High: 59 °F

    Becoming
    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 35. Calm wind.

    Low: 35 °F

    Mostly Clear

  • Sunday

    Sunday: Increasing clouds, with a high near 62. Light east wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.

    High: 62 °F

    Increasing
    Clouds

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 50. Southeast wind 6 to 8 mph.

    Low: 50 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of showers.  Mostly cloudy, with a high near 73. Light and variable wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 26 mph.  Chance of precipitation is 40%.

    High: 73 °F

    Chance
    Showers

  • Monday Night

    Monday Night: A slight chance of showers before 2am.  Mostly cloudy, with a low around 57. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers after 2pm.  Partly sunny, with a high near 80. Chance of precipitation is 30%.

    High: 80 °F

    Partly Sunny
    then Chance
    Showers

  • Tuesday Night

    Tuesday Night: A chance of showers before 2am.  Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers after 2pm.  Partly sunny, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Partly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Partly sunny, then gradually becoming sunny, with a high near 59. Northwest wind 7 to 9 mph.
Tonight
Mostly clear, with a low around 35. Calm wind.
Sunday
Increasing clouds, with a high near 62. Light east wind becoming south 6 to 11 mph in the afternoon. Winds could gust as high as 20 mph.
Sunday Night
Mostly cloudy, with a low around 50. Southeast wind 6 to 8 mph.
Monday
A chance of showers. Mostly cloudy, with a high near 73. Light and variable wind becoming southwest 9 to 14 mph in the morning. Winds could gust as high as 26 mph. Chance of precipitation is 40%.
Monday Night
A slight chance of showers before 2am. Mostly cloudy, with a low around 57. Chance of precipitation is 20%.
Tuesday
A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Tuesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Wednesday
A chance of showers after 2pm. Partly sunny, with a high near 84. Chance of precipitation is 30%.
Wednesday Night
A chance of showers before 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Thursday
Partly sunny, with a high near 83.
Thursday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny, with a high near 77. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
South Williamsport PA
 41.24°N 76.99°W (Elev. 492 ft)
3:06 am EDT Apr 11, 2026
5am EDT Apr 11, 2026-6pm EDT Apr 17, 2026
 
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