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.

Overcast

29°F

-2°C

Humidity 78%
Wind Speed SW 10 mph
Barometer 29.89 in (1014.0 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill20°F (-7°C)
Last update 6 Dec 2:53 am EST
Extended Forecast for

Irwin PA

  • Overnight

    Overnight: Cloudy, with a low around 26. Southwest wind around 6 mph.

    Low: 26 °F

    Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 37. Southwest wind 8 to 14 mph.

    High: 37 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Cloudy, with a low around 27. Southwest wind around 6 mph becoming calm in the evening.

    Low: 27 °F

    Cloudy

  • Sunday

    Sunday: A chance of snow after 1pm, mixing with rain after 4pm. Cloudy, with a high near 38. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 38 °F

    Cloudy then
    Chance
    Rain/Snow

  • Sunday Night

    Sunday Night: A chance of rain and snow before 10pm, then a chance of snow between 10pm and 1am. Mostly cloudy, with a low around 18. West wind around 7 mph becoming north after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.

    Low: 18 °F

    Chance
    Rain/Snow
    then Chance
    Snow

  • Monday

    Monday: Partly sunny, with a high near 28.

    High: 28 °F

    Partly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 12.

    Low: 12 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.

    Low: 30 °F

    Mostly Cloudy
    then Chance
    Rain

Detailed Forecast

Overnight
Cloudy, with a low around 26. Southwest wind around 6 mph.
Saturday
Mostly cloudy, with a high near 37. Southwest wind 8 to 14 mph.
Saturday Night
Cloudy, with a low around 27. Southwest wind around 6 mph becoming calm in the evening.
Sunday
A chance of snow after 1pm, mixing with rain after 4pm. Cloudy, with a high near 38. Calm wind becoming southwest 5 to 7 mph in the morning. Chance of precipitation is 40%. Little or no snow accumulation expected.
Sunday Night
A chance of rain and snow before 10pm, then a chance of snow between 10pm and 1am. Mostly cloudy, with a low around 18. West wind around 7 mph becoming north after midnight. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday
Partly sunny, with a high near 28.
Monday Night
Partly cloudy, with a low around 12.
Tuesday
Partly sunny, with a high near 36.
Tuesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 40%.
Wednesday
Rain. High near 41. Chance of precipitation is 80%.
Wednesday Night
Rain and snow. Low around 26. Chance of precipitation is 80%.
Thursday
A chance of snow. Mostly cloudy, with a high near 33. Chance of precipitation is 50%.
Thursday Night
Snow likely. Mostly cloudy, with a low around 21. Chance of precipitation is 60%.
Friday
A chance of snow. Mostly cloudy, with a high near 30. Chance of precipitation is 50%.
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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 Dec 6, 2025
Forecast Valid:
3am EST Dec 6, 2025-6pm EST Dec 12, 2025
 
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