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

72°F

22°C

Humidity 40%
Wind Speed Calm
Barometer 29.97 in (1014.6 mb)
Dewpoint 46°F (8°C)
Visibility 10.00 mi
Last update 21 Jun 7:53 pm EDT
Extended Forecast for

Irwin PA

  • Tonight

    Tonight: A chance of showers, with thunderstorms also possible after 5am. Mostly cloudy, with a low around 61. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 61 °F

    Mostly Cloudy
    then Chance
    Showers

  • Monday

    Monday: Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. High near 76. South wind 11 to 13 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms before 11pm, then a chance of showers. Low around 58. West wind around 7 mph becoming north after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 58 °F

    Showers then
    Chance
    Showers

  • Tuesday

    Tuesday: Cloudy through mid morning, then gradual clearing, with a high near 77. Northwest wind around 10 mph.

    High: 77 °F

    Gradual
    Clearing

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 53. Northwest wind 5 to 8 mph becoming calm after midnight.

    Low: 53 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.

    High: 84 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    T-storms

Detailed Forecast

Tonight
A chance of showers, with thunderstorms also possible after 5am. Mostly cloudy, with a low around 61. Calm wind becoming east around 6 mph after midnight. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms before 2pm, then showers and possibly a thunderstorm, mainly after 2pm. High near 76. South wind 11 to 13 mph becoming southwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms before 11pm, then a chance of showers. Low around 58. West wind around 7 mph becoming north after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Cloudy through mid morning, then gradual clearing, with a high near 77. Northwest wind around 10 mph.
Tuesday Night
Mostly clear, with a low around 53. Northwest wind 5 to 8 mph becoming calm after midnight.
Wednesday
Sunny, with a high near 79.
Wednesday Night
Partly cloudy, with a low around 57.
Thursday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 84. Chance of precipitation is 30%.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 40%.
Friday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 83. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Saturday
A chance of showers and thunderstorms. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Irwin PA
 40.32°N 79.71°W (Elev. 1053 ft)
Last Update:
2:21 pm EDT Jun 21, 2026
Forecast Valid:
8pm EDT Jun 21, 2026-6pm EDT Jun 28, 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