Showers and Thunderstorms from the Great Lakes into the Southern Plains

Frontal boundary and wave of low pressure will keep an active weather pattern from the Great Lakes region through the southern Plains the next couple of days. Isolated instances of severe thunderstorms and flash flooding are possible. Meanwhile, as summer comes to a close, above normal temperatures continue for central and eastern U.S. - especially for most of Puerto Rico with excessive heat. Read More >

Current conditions at

Williamsport - Lycoming County Airport (KIPT)

Lat: 41.24°NLon: 76.92°WElev: 522ft.

Overcast

67°F

19°C

Humidity 59%
Wind Speed Vrbl 7 mph
Barometer 30.27 in (1024.8 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 21 Sep 11:54 am EDT
Extended Forecast for

3 Miles NNW Lock Haven PA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 70. South wind around 7 mph.

    High: 70 °F

    Mostly Cloudy

  • Tonight

    Tonight: Mostly cloudy, with a low around 58. Southeast wind around 6 mph.

    Low: 58 °F

    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm.  Mostly cloudy, with a high near 78. East wind 5 to 7 mph becoming south in the afternoon.  Chance of precipitation is 20%.

    High: 78 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Monday Night

    Monday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am.  Mostly cloudy, with a low around 61. South wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A chance of showers, then showers and possibly a thunderstorm after 2pm.  High near 77. Calm wind becoming southwest around 6 mph in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 77 °F

    Chance
    Showers then
    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 8pm, then a chance of showers.  Low around 61. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Showers then
    Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers after 8am.  Mostly cloudy, with a high near 74. Chance of precipitation is 50%.

    High: 74 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers.  Mostly cloudy, with a low around 60. Chance of precipitation is 40%.

    Low: 60 °F

    Chance
    Showers

  • Thursday

    Thursday: Showers likely, mainly after 2pm.  Mostly cloudy, with a high near 70. Chance of precipitation is 60%.

    High: 70 °F

    Showers
    Likely

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 70. South wind around 7 mph.
Tonight
Mostly cloudy, with a low around 58. Southeast wind around 6 mph.
Monday
A slight chance of showers between 2pm and 5pm, then a slight chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 78. East wind 5 to 7 mph becoming south in the afternoon. Chance of precipitation is 20%.
Monday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 61. South wind around 5 mph becoming calm in the evening. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 77. Calm wind becoming southwest around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 8pm, then a chance of showers. Low around 61. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday
A chance of showers after 8am. Mostly cloudy, with a high near 74. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Thursday
Showers likely, mainly after 2pm. Mostly cloudy, with a high near 70. Chance of precipitation is 60%.
Thursday Night
Showers likely, mainly before 2am. Cloudy, with a low around 61. Chance of precipitation is 60%.
Friday
Showers likely. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Saturday
A chance of showers. Mostly cloudy, with a high near 74. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles NNW Lock Haven PA
 41.18°N 77.47°W (Elev. 912 ft)
11:31 am EDT Sep 21, 2025
12pm EDT Sep 21, 2025-6pm EDT Sep 27, 2025
 
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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