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.

A Few Clouds

66°F

19°C

Humidity 50%
Wind Speed SW 13 mph
Barometer 29.74 in (1007.5 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Last update 9 May 5:53 pm EDT
Extended Forecast for

Irwin PA

  • Tonight

    Tonight: Isolated showers and thunderstorms, then scattered showers after 1am. Increasing clouds, with a low around 50. Southwest wind 6 to 8 mph. Chance of precipitation is 40%.

    Low: 50 °F

    Isolated
    T-storms then
    Scattered
    Showers

  • Sunday

    Sunday: Scattered showers, mainly before noon. Mostly cloudy, then gradually becoming sunny, with a high near 65. Northwest wind around 6 mph. Chance of precipitation is 30%.

    High: 65 °F

    Scattered
    Showers

  • Sunday Night

    Sunday Night: Increasing clouds, with a low around 43. West wind around 5 mph becoming calm in the evening.

    Low: 43 °F

    Increasing
    Clouds

  • Monday

    Monday: Mostly sunny, with a high near 60. Light north wind becoming northwest 8 to 13 mph in the morning.

    High: 60 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 35. Northwest wind 5 to 9 mph becoming calm after midnight.

    Low: 35 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Showers likely after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.

    Low: 49 °F

    Mostly Cloudy
    then Showers
    Likely

  • Wednesday

    Wednesday: Showers, with thunderstorms also possible after 2pm. High near 68. Chance of precipitation is 90%.

    High: 68 °F

    Showers

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 40%.

    Low: 46 °F

    Chance
    T-storms then
    Chance
    Showers

Detailed Forecast

Tonight
Isolated showers and thunderstorms, then scattered showers after 1am. Increasing clouds, with a low around 50. Southwest wind 6 to 8 mph. Chance of precipitation is 40%.
Sunday
Scattered showers, mainly before noon. Mostly cloudy, then gradually becoming sunny, with a high near 65. Northwest wind around 6 mph. Chance of precipitation is 30%.
Sunday Night
Increasing clouds, with a low around 43. West wind around 5 mph becoming calm in the evening.
Monday
Mostly sunny, with a high near 60. Light north wind becoming northwest 8 to 13 mph in the morning.
Monday Night
Mostly clear, with a low around 35. Northwest wind 5 to 9 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 64.
Tuesday Night
Showers likely after 2am. Mostly cloudy, with a low around 49. Chance of precipitation is 70%.
Wednesday
Showers, with thunderstorms also possible after 2pm. High near 68. Chance of precipitation is 90%.
Wednesday Night
A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 46. Chance of precipitation is 40%.
Thursday
A chance of showers after 8am. Partly sunny, with a high near 62. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 45.
Friday
Partly sunny, with a high near 70.
Friday Night
Mostly cloudy, with a low around 50.
Saturday
Mostly sunny, with a high near 78.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Irwin PA
 40.32°N 79.71°W (Elev. 1053 ft)
Last Update:
6:31 pm EDT May 9, 2026
Forecast Valid:
6pm EDT May 9, 2026-6pm EDT May 16, 2026
 
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