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

Critical Fire Weather Conditions and Severe Thunderstorms Today

Scattered severe thunderstorms are possible across portions of the northern High Plains this afternoon and evening. Severe wind gusts are the primary hazard. Gusty winds and low relative humidity will contribute to critical fire weather conditions across parts of the northern Great Plains and Great Basin today and the southern High Plains on Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Williamsport - Lycoming County Airport (KIPT)

Lat: 41.24°NLon: 76.92°WElev: 522ft.

Overcast

61°F

16°C

Humidity 67%
Wind Speed SE 12 G 21 mph
Barometer 29.77 in (1008.1 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 13 May 2:54 pm EDT
Extended Forecast for

4 Miles S Muncy Valley PA

  • This Afternoon

    This Afternoon: A chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 66. South wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 66 °F

    Chance
    T-storms

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 1am, then a slight chance of showers between 1am and 2am. Patchy fog after 1am. Low around 44. South wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Showers then
    Chance
    Showers and
    Patchy Fog

  • Thursday

    Thursday: A slight chance of showers after 3pm. Partly sunny, with a high near 59. Northwest wind 5 to 7 mph. Chance of precipitation is 20%.

    High: 59 °F

    Partly Sunny
    then Slight
    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 45. Northwest wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: Mostly sunny, with a high near 68. North wind 7 to 13 mph, with gusts as high as 22 mph.

    High: 68 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 46.

    Low: 46 °F

    Partly Cloudy

  • Saturday

    Saturday: A chance of showers after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 30%.

    High: 78 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.

    Low: 56 °F

    Chance
    Showers then
    Mostly Cloudy

  • Sunday

    Sunday: A chance of showers after 8am. Partly sunny, with a high near 80. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

Detailed Forecast

This Afternoon
A chance of showers and thunderstorms, mainly after 5pm. Mostly cloudy, with a high near 66. South wind around 11 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and possibly a thunderstorm before 1am, then a slight chance of showers between 1am and 2am. Patchy fog after 1am. Low around 44. South wind 5 to 8 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A slight chance of showers after 3pm. Partly sunny, with a high near 59. Northwest wind 5 to 7 mph. Chance of precipitation is 20%.
Thursday Night
A slight chance of showers before 8pm, then a slight chance of showers after 2am. Mostly cloudy, with a low around 45. Northwest wind 6 to 8 mph, with gusts as high as 20 mph. Chance of precipitation is 20%.
Friday
Mostly sunny, with a high near 68. North wind 7 to 13 mph, with gusts as high as 22 mph.
Friday Night
Partly cloudy, with a low around 46.
Saturday
A chance of showers after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 30%.
Saturday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 56. Chance of precipitation is 30%.
Sunday
A chance of showers after 8am. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 85.
Monday Night
Mostly clear, with a low around 62.
Tuesday
A chance of showers. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Wednesday
Showers likely. Partly sunny, with a high near 84.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles S Muncy Valley PA
 41.29°N 76.6°W (Elev. 1030 ft)
Last Update:
2:20 pm EDT May 13, 2026
Forecast Valid:
3pm EDT May 13, 2026-6pm EDT May 20, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation