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

Hazardous Weather Conditions

Current conditions at

Williamsport - Lycoming County Airport (KIPT)

Lat: 41.24°NLon: 76.92°WElev: 522ft.

Fog/Mist

70°F

21°C

Humidity 97%
Wind Speed E 5 mph
Barometer 30.04 in (1016.8 mb)
Dewpoint 69°F (21°C)
Visibility 6.00 mi
Last update 2 Sep 6:54 am EDT
Extended Forecast for

Williamsport PA

  • Today

    Today: A chance of showers and thunderstorms, mainly after 5pm. Some of the storms could be severe. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Chance
    Showers and
    Patchy Fog
    then Severe
    Thunderstorms

  • Tonight

    Tonight: Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could be severe. Patchy fog after 5am. Low around 70. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 70 °F

    Severe
    Thunderstorms
    and Patchy
    Fog

  • Thursday

    Thursday: A chance of showers and thunderstorms, mainly before 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 88. Calm wind becoming west 5 to 9 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Chance
    T-storms and
    Patchy Fog
    then Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 8am, then a chance of showers after 2pm. Mostly sunny, with a high near 83. Calm wind becoming northwest 5 to 8 mph in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 83 °F

    Mostly Sunny
    then Chance
    Showers

  • Friday Night

    Friday Night: A chance of showers before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 59 °F

    Chance
    Showers then
    Mostly Clear

  • Saturday

    Saturday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

Detailed Forecast

Today
A chance of showers and thunderstorms, mainly after 5pm. Some of the storms could be severe. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 82. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Some of the storms could be severe. Patchy fog after 5am. Low around 70. Southeast wind around 5 mph becoming calm after midnight. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Thursday
A chance of showers and thunderstorms, mainly before 2pm. Patchy fog before 8am. Otherwise, partly sunny, with a high near 88. Calm wind becoming west 5 to 9 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. West wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A slight chance of showers before 8am, then a chance of showers after 2pm. Mostly sunny, with a high near 83. Calm wind becoming northwest 5 to 8 mph in the morning. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
A chance of showers before 8pm. Partly cloudy, with a low around 59. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 55.
Sunday
Sunny, with a high near 76.
Sunday Night
Partly cloudy, with a low around 55.
Labor Day
Mostly sunny, with a high near 78.
Monday Night
Partly cloudy, with a low around 58.
Tuesday
Partly sunny, with a high near 78.
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ABOUT THIS FORECAST

 
Point Forecast:
Williamsport PA
 41.24°N 77.02°W (Elev. 594 ft)
Last Update:
6:11 am EDT Sep 2, 2026
Forecast Valid:
7am EDT Sep 2, 2026-6pm EDT Sep 8, 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