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

40°F

4°C

Humidity 83%
Wind Speed N 10 G 18 mph
Barometer 29.65 in (1005.1 mb)
Dewpoint 35°F (2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 12 Nov 11:53 pm EST
Extended Forecast for

Irwin PA

  • Overnight

    Overnight: Cloudy, with a low around 34. North wind 9 to 11 mph.

    Low: 34 °F

    Cloudy

  • Friday

    Friday: A slight chance of rain between 2pm and 4pm. Mostly cloudy, with a high near 46. Northwest wind 9 to 14 mph. Chance of precipitation is 20%.

    High: 46 °F

    Partly Sunny
    then Slight
    Chance Rain

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 29. West wind 5 to 10 mph.

    Low: 29 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of rain and snow showers between 9am and 10am, then rain showers likely. Mostly cloudy, with a high near 45. West wind 8 to 16 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.

    High: 45 °F

    Chance
    Rain/Snow
    then Showers
    Likely

  • Saturday Night

    Saturday Night: A chance of rain, mainly before 1am. Mostly cloudy, with a low around 31. West wind 8 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Chance Rain

  • Sunday

    Sunday: A chance of rain, mainly before 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 30%.

    High: 47 °F

    Chance Rain

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 32.

    Low: 32 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 48.

    High: 48 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Overnight
Cloudy, with a low around 34. North wind 9 to 11 mph.
Friday
A slight chance of rain between 2pm and 4pm. Mostly cloudy, with a high near 46. Northwest wind 9 to 14 mph. Chance of precipitation is 20%.
Friday Night
Mostly cloudy, with a low around 29. West wind 5 to 10 mph.
Saturday
A chance of rain and snow showers between 9am and 10am, then rain showers likely. Mostly cloudy, with a high near 45. West wind 8 to 16 mph. Chance of precipitation is 60%. Little or no snow accumulation expected.
Saturday Night
A chance of rain, mainly before 1am. Mostly cloudy, with a low around 31. West wind 8 to 14 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
A chance of rain, mainly before 1pm. Mostly cloudy, with a high near 47. Chance of precipitation is 30%.
Sunday Night
Mostly cloudy, with a low around 32.
Monday
Mostly cloudy, with a high near 48.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Sunny, with a high near 51.
Tuesday Night
Clear, with a low around 26.
Wednesday
Sunny, with a high near 55.
Wednesday Night
Clear, with a low around 28.
Thursday
Mostly sunny, with a high near 60.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Irwin PA
 40.32°N 79.68°W (Elev. 1099 ft)
Last Update:
12:16 am EST Nov 13, 2026
Forecast Valid:
12am EST Nov 13, 2026-6pm EST Nov 19, 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