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.

Fog/Mist

72°F

22°C

Humidity 100%
Wind Speed SW 5 mph
Barometer 29.89 in (1011.1 mb)
Dewpoint 72°F (22°C)
Visibility 2.50 mi
Last update 17 Aug 1:53 am EDT
Extended Forecast for

Harmonsburg PA

  • Overnight

    Overnight: A chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 69. West wind 3 to 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 69 °F

    Chance
    Showers and
    Patchy Fog

  • Monday

    Monday: A chance of showers, mainly before 7am. Partly sunny, with a high near 76. Northwest wind 7 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 76 °F

    Chance
    Showers then
    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60. Light northwest wind.

    Low: 60 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 78. Calm wind becoming west 5 to 8 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 62. Calm wind becoming south around 5 mph after midnight.

    Low: 62 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 11am. High near 75. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely before 8pm. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.

    Low: 58 °F

    Showers
    Likely then
    Mostly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 75.

    High: 75 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55.

    Low: 55 °F

    Partly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms. Patchy fog. Otherwise, mostly cloudy, with a low around 69. West wind 3 to 5 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
A chance of showers, mainly before 7am. Partly sunny, with a high near 76. Northwest wind 7 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Partly cloudy, with a low around 60. Light northwest wind.
Tuesday
Mostly sunny, with a high near 78. Calm wind becoming west 5 to 8 mph in the afternoon.
Tuesday Night
Mostly cloudy, with a low around 62. Calm wind becoming south around 5 mph after midnight.
Wednesday
Showers, with thunderstorms also possible after 11am. High near 75. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers likely before 8pm. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 55.
Friday
Sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 57.
Saturday
A chance of showers. Mostly sunny, with a high near 78. Chance of precipitation is 30%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 59. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 75. Chance of precipitation is 50%.
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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:
2:31 am EDT Aug 17, 2026
Forecast Valid:
2am EDT Aug 17, 2026-6pm EDT Aug 23, 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