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

Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fair

67°F

19°C

Humidity 71%
Wind Speed SW 10 mph
Barometer 29.78 in (1008.2 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 17 Jun 9:53 am EDT
Extended Forecast for

Arnold PA

  • Today

    Today: Mostly sunny, with a high near 81. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 67. South wind 6 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Isolated
    T-storms then
    Showers

  • Thursday

    Thursday: Showers and thunderstorms, mainly before 10am. High near 84. Breezy, with a southwest wind 16 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Breezy.
    Showers then
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 58. West wind 5 to 11 mph, with gusts as high as 26 mph.

    Low: 58 °F

    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 78. West wind 6 to 16 mph.

    High: 78 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 56.

    Low: 56 °F

    Mostly Clear

  • Sunday

    Sunday: A chance of showers after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Mostly sunny, with a high near 81. Southwest wind 9 to 11 mph, with gusts as high as 21 mph.
Tonight
Scattered showers and thunderstorms, then showers and possibly a thunderstorm after 2am. Low around 67. South wind 6 to 14 mph, with gusts as high as 30 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Showers and thunderstorms, mainly before 10am. High near 84. Breezy, with a southwest wind 16 to 21 mph, with gusts as high as 39 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Partly cloudy, with a low around 58. West wind 5 to 11 mph, with gusts as high as 26 mph.
Juneteenth
Mostly sunny, with a high near 78. West wind 6 to 16 mph.
Friday Night
Mostly clear, with a low around 56.
Saturday
Sunny, with a high near 77.
Saturday Night
Mostly clear, with a low around 56.
Sunday
A chance of showers after 2pm. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
Sunday Night
Showers likely, mainly after 2am. Mostly cloudy, with a low around 60. Chance of precipitation is 70%.
Monday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 80. Chance of precipitation is 60%.
Monday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Tuesday
Mostly sunny, with a high near 80.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Arnold PA
 40.57°N 79.76°W (Elev. 860 ft)
Last Update:
9:53 am EDT Jun 17, 2026
Forecast Valid:
10am EDT Jun 17, 2026-6pm EDT Jun 23, 2026
 
Forecast Discussion
 
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Additional Resources

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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