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.

Fair

66°F

19°C

Humidity 84%
Wind Speed S 5 mph
Barometer 30.06 in (1017.5 mb)
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 20 May 3:53 am EDT
Extended Forecast for

Donora PA

  • Today

    Today: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. High near 76. Southwest wind 6 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 76 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms likely. Cloudy, with a low around 50. North wind 6 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 69. Northeast wind 7 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 69 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A slight chance of showers after 2am. Increasing clouds, with a low around 53. East wind around 7 mph. Chance of precipitation is 20%.

    Low: 53 °F

    Mostly Clear
    then Slight
    Chance
    Showers

  • Friday

    Friday: Showers, mainly after 8am. High near 66. East wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    High: 66 °F

    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 11pm, then showers between 11pm and 2am, then showers and possibly a thunderstorm after 2am. Low around 52. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 52 °F

    Showers

  • Saturday

    Saturday: Showers, with thunderstorms also possible after 8am. High near 71. Chance of precipitation is 100%.

    High: 71 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm before 2am, then showers likely. Low around 58. Chance of precipitation is 80%.

    Low: 58 °F

    Showers

  • Sunday

    Sunday: Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.

    High: 81 °F

    Showers
    Likely

Detailed Forecast

Today
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 1pm. High near 76. Southwest wind 6 to 9 mph becoming northwest in the afternoon. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight
Showers and thunderstorms likely. Cloudy, with a low around 50. North wind 6 to 8 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers, mainly before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 69. Northeast wind 7 to 9 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
A slight chance of showers after 2am. Increasing clouds, with a low around 53. East wind around 7 mph. Chance of precipitation is 20%.
Friday
Showers, mainly after 8am. High near 66. East wind 9 to 13 mph, with gusts as high as 23 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Friday Night
Showers and possibly a thunderstorm before 11pm, then showers between 11pm and 2am, then showers and possibly a thunderstorm after 2am. Low around 52. Chance of precipitation is 100%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
Showers, with thunderstorms also possible after 8am. High near 71. Chance of precipitation is 100%.
Saturday Night
Showers and possibly a thunderstorm before 2am, then showers likely. Low around 58. Chance of precipitation is 80%.
Sunday
Showers likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm, then showers after 8pm. Low around 62. Chance of precipitation is 80%.
Memorial Day
Showers likely. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
Monday Night
A chance of showers. Mostly cloudy, with a low around 61. Chance of precipitation is 50%.
Tuesday
A chance of showers. Mostly cloudy, with a high near 81. Chance of precipitation is 50%.
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ABOUT THIS FORECAST

 
Point Forecast:
Donora PA
 40.18°N 79.85°W (Elev. 830 ft)
Last Update:
2:21 am EDT May 20, 2026
Forecast Valid:
4am EDT May 20, 2026-6pm EDT May 26, 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