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

91°F

33°C

Humidity 35%
Wind Speed SW 9 mph
Barometer 29.99 in (1014.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Heat Index90°F (32°C)
Last update 12 Aug 4:53 pm EDT
Extended Forecast for

Irwin PA

  • Tonight

    Tonight: Partly cloudy, with a low around 69. South wind 3 to 5 mph.

    Low: 69 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 5pm, then showers and thunderstorms likely after 5pm. High near 85. West wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Scattered
    T-storms then
    T-storms

  • Wednesday Night

    Wednesday Night: Showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then scattered showers after 2am. Patchy fog after 4am. Low around 68. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    T-storms then
    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Scattered showers, with thunderstorms also possible after 8am. Patchy fog before 7am. Otherwise, partly sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 84 °F

    Chance
    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 62. Light north wind.

    Low: 62 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: A slight chance of showers after 2pm. Patchy fog before 9am. Otherwise, sunny, with a high near 88. Chance of precipitation is 20%.

    High: 88 °F

    Patchy Fog
    then Slight
    Chance
    Showers

  • Friday Night

    Friday Night: Patchy fog after 4am. Otherwise, mostly clear, with a low around 65.

    Low: 65 °F

    Mostly Clear
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, sunny, with a high near 89.

    High: 89 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Patchy fog after 3am. Otherwise, mostly clear, with a low around 66.

    Low: 66 °F

    Mostly Clear
    then Patchy
    Fog

Detailed Forecast

Tonight
Partly cloudy, with a low around 69. South wind 3 to 5 mph.
Wednesday
Showers and thunderstorms likely before 3pm, then showers and possibly a thunderstorm between 3pm and 5pm, then showers and thunderstorms likely after 5pm. High near 85. West wind around 6 mph. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then scattered showers after 2am. Patchy fog after 4am. Low around 68. Light and variable wind. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Scattered showers, with thunderstorms also possible after 8am. Patchy fog before 7am. Otherwise, partly sunny, with a high near 84. Calm wind becoming northwest around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 62. Light north wind.
Friday
A slight chance of showers after 2pm. Patchy fog before 9am. Otherwise, sunny, with a high near 88. Chance of precipitation is 20%.
Friday Night
Patchy fog after 4am. Otherwise, mostly clear, with a low around 65.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 89.
Saturday Night
Patchy fog after 3am. Otherwise, mostly clear, with a low around 66.
Sunday
Patchy fog before 7am. Otherwise, mostly sunny and hot, with a high near 92.
Sunday Night
Patchy fog. Otherwise, partly cloudy, with a low around 69.
Monday
A chance of showers and thunderstorms. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
Tuesday
A chance of showers. 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:
4:05 pm EDT Aug 12, 2025
Forecast Valid:
5pm EDT Aug 12, 2025-6pm EDT Aug 19, 2025
 
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