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.

Fair

74°F

23°C

Humidity 62%
Wind Speed S 6 mph
Barometer 30.25 in (1024.0 mb)
Dewpoint 60°F (16°C)
Visibility 7.00 mi
Last update 9 Aug 9:53 am EDT
Extended Forecast for

Arnold PA

  • Today

    Today: Sunny, with a high near 88. Calm wind becoming southeast around 5 mph.

    High: 88 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 62. East wind around 5 mph becoming calm after midnight.

    Low: 62 °F

    Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 90. Light southeast wind.

    High: 90 °F

    Hot

  • Sunday Night

    Sunday Night: Clear, with a low around 64. Light southeast wind.

    Low: 64 °F

    Clear

  • Monday

    Monday: Sunny and hot, with a high near 92. Calm wind.

    High: 92 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 67.

    Low: 67 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 69.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 50%.

    High: 89 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Sunny, with a high near 88. Calm wind becoming southeast around 5 mph.
Tonight
Clear, with a low around 62. East wind around 5 mph becoming calm after midnight.
Sunday
Sunny and hot, with a high near 90. Light southeast wind.
Sunday Night
Clear, with a low around 64. Light southeast wind.
Monday
Sunny and hot, with a high near 92. Calm wind.
Monday Night
Mostly clear, with a low around 67.
Tuesday
Sunny and hot, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 69.
Wednesday
A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 89. Chance of precipitation is 50%.
Wednesday Night
A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 68. Chance of precipitation is 30%.
Thursday
A chance of showers and thunderstorms. Partly sunny and hot, with a high near 90. Chance of precipitation is 40%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 67. Chance of precipitation is 30%.
Friday
A chance of showers. Partly sunny and hot, with a high near 90. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Arnold PA
 40.57°N 79.76°W (Elev. 860 ft)
Last Update:
10:05 am EDT Aug 9, 2025
Forecast Valid:
10am EDT Aug 9, 2025-6pm EDT Aug 15, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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