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

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Overcast

65°F

18°C

Humidity 97%
Wind Speed NW 6 mph
Barometer 29.83 in (1009.7 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Last update 3 Aug 5:53 am EDT
Extended Forecast for

Finleyville PA

  • Today

    Today: Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind 7 to 9 mph.

    High: 79 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: Mostly clear, with a low around 58. North wind around 6 mph becoming calm after midnight.

    Low: 58 °F

    Mostly Clear

  • Tuesday

    Tuesday: Patchy fog before 8am. Otherwise, sunny, with a high near 83. Calm wind becoming east around 5 mph in the afternoon.

    High: 83 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 65. East wind around 5 mph becoming calm in the evening.

    Low: 65 °F

    Increasing
    Clouds

  • Wednesday

    Wednesday: Scattered showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Mostly Sunny
    then
    Scattered
    T-storms

  • Wednesday Night

    Wednesday Night: Scattered showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Scattered
    T-storms

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.

    High: 84 °F

    Showers
    Likely

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.

    Low: 68 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 83. Chance of precipitation is 80%.

    High: 83 °F

    Chance
    Showers then
    Showers

Detailed Forecast

Today
Cloudy, then gradually becoming mostly sunny, with a high near 79. North wind 7 to 9 mph.
Tonight
Mostly clear, with a low around 58. North wind around 6 mph becoming calm after midnight.
Tuesday
Patchy fog before 8am. Otherwise, sunny, with a high near 83. Calm wind becoming east around 5 mph in the afternoon.
Tuesday Night
Increasing clouds, with a low around 65. East wind around 5 mph becoming calm in the evening.
Wednesday
Scattered showers and thunderstorms after 2pm. Mostly sunny, with a high near 85. Calm wind becoming south around 6 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Scattered showers and thunderstorms, mainly before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Friday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 83. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 67. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 82. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 67. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Finleyville PA
 40.26°N 80.01°W (Elev. 1073 ft)
Last Update:
2:21 am EDT Aug 3, 2026
Forecast Valid:
5am EDT Aug 3, 2026-6pm EDT Aug 9, 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