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

Williamsport - Lycoming County Airport (KIPT)

Lat: 41.24°NLon: 76.92°WElev: 522ft.

Mostly Cloudy

58°F

14°C

Humidity 78%
Wind Speed Calm
Barometer 30.10 in (1019.1 mb)
Dewpoint 51°F (11°C)
Visibility 10.00 mi
Last update 14 Oct 11:54 pm EDT
Extended Forecast for

Williamsport PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 50. West wind around 7 mph becoming north.

    Low: 50 °F

    Mostly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 64. North wind around 5 mph becoming calm in the morning.

    High: 64 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of rain, then rain and possibly a thunderstorm after 2am. Low around 55. Southeast wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Slight Chance
    Rain then
    Rain

  • Friday

    Friday: Rain and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 77. Southeast wind 8 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 40. Northwest wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 50. Breezy.

    High: 50 °F

    Partly Sunny
    and Breezy
    then Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 4am. Otherwise, clear, with a low around 32.

    Low: 32 °F

    Mostly Clear
    then Frost

  • Sunday

    Sunday: Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 59.

    High: 59 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 5am. Otherwise, mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear
    then Patchy
    Frost

Detailed Forecast

Overnight
Mostly cloudy, with a low around 50. West wind around 7 mph becoming north.
Thursday
Partly sunny, with a high near 64. North wind around 5 mph becoming calm in the morning.
Thursday Night
A chance of rain, then rain and possibly a thunderstorm after 2am. Low around 55. Southeast wind 5 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday
Rain and thunderstorms likely before 2pm, then showers likely and possibly a thunderstorm between 2pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 77. Southeast wind 8 to 15 mph becoming southwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers, mainly before 7pm. Mostly cloudy, with a low around 40. Northwest wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly sunny, with a high near 50. Breezy.
Saturday Night
Widespread frost, mainly after 4am. Otherwise, clear, with a low around 32.
Sunday
Widespread frost, mainly before 9am. Otherwise, sunny, with a high near 59.
Sunday Night
Patchy frost after 5am. Otherwise, mostly clear, with a low around 34.
Monday
Patchy frost before 9am. Otherwise, sunny, with a high near 62.
Monday Night
Partly cloudy, with a low around 39.
Tuesday
Mostly sunny, with a high near 65.
Tuesday Night
Partly cloudy, with a low around 40.
Wednesday
Sunny, with a high near 64.
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ABOUT THIS FORECAST

 
Point Forecast:
Williamsport PA
 41.25°N 77.05°W (Elev. 591 ft)
Last Update:
12:42 am EDT Oct 15, 2026
Forecast Valid:
12am EDT Oct 15, 2026-6pm EDT Oct 21, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation