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

Port Meadville Airport (KGKJ)

Lat: 41.63°NLon: 80.21°WElev: 1401ft.

Mostly Cloudy

75°F

24°C

Humidity 60%
Wind Speed W 7 mph
Barometer 30.01 in (1015.4 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 18 Aug 3:53 pm EDT
Extended Forecast for

Harmonsburg PA

  • Tonight

    Tonight: Partly cloudy, with a low around 60. Northwest wind around 6 mph becoming calm in the evening.

    Low: 60 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 76. Southwest wind 6 to 9 mph becoming west in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 76 °F

    Chance
    Showers then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Chance
    T-storms then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76. Calm wind becoming north around 6 mph in the afternoon.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54. Light and variable wind.

    Low: 54 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 58.

    Low: 58 °F

    Partly Cloudy

  • Saturday

    Saturday: Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 70%.

    High: 78 °F

    Mostly Sunny
    then Showers
    Likely

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.

    Low: 59 °F

    Showers
    Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 60. Northwest wind around 6 mph becoming calm in the evening.
Wednesday
A chance of showers, with thunderstorms also possible after noon. Mostly cloudy, with a high near 76. Southwest wind 6 to 9 mph becoming west in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A chance of thunderstorms before 10pm, then a slight chance of showers between 10pm and midnight. Mostly cloudy, with a low around 58. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Mostly sunny, with a high near 76. Calm wind becoming north around 6 mph in the afternoon.
Thursday Night
Mostly clear, with a low around 54. Light and variable wind.
Friday
Sunny, with a high near 79.
Friday Night
Partly cloudy, with a low around 58.
Saturday
Showers likely and possibly a thunderstorm after 2pm. Mostly sunny, with a high near 78. Chance of precipitation is 70%.
Saturday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 70%.
Sunday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 73. Chance of precipitation is 60%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 56. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 74.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 77.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harmonsburg PA
 41.67°N 80.27°W (Elev. 1322 ft)
Last Update:
3:46 pm EDT Aug 18, 2026
Forecast Valid:
3pm EDT Aug 18, 2026-6pm EDT Aug 25, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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