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

46°F

8°C

Humidity 58%
Wind Speed Calm
Barometer 30.12 in (1020.6 mb)
Dewpoint 32°F (0°C)
Visibility 10.00 mi
Last update 17 Oct 12:53 am EDT
Extended Forecast for

Donora PA

Frost Advisory October 17, 02:00am until October 17, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Overnight

    Overnight: Patchy frost after 4am. Otherwise, clear, with a low around 32. Calm wind.

    Low: 32 °F

    Patchy Frost

  • Friday

    Friday: Patchy fog before 9am. Areas of frost before 9am. Otherwise, sunny, with a high near 63. Calm wind.

    High: 63 °F

    Areas Frost
    and Patchy
    Fog then
    Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 44. Calm wind.

    Low: 44 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, then gradually becoming sunny, with a high near 75. Light southeast wind becoming south 5 to 9 mph in the morning.

    High: 75 °F

    Decreasing
    Clouds

  • Saturday Night

    Saturday Night: A chance of showers, mainly after 2am. Partly cloudy, with a low around 57. South wind 8 to 11 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance
    Showers

  • Sunday

    Sunday: Showers likely, then showers and possibly a thunderstorm after 2pm. High near 72. Breezy. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 72 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 45. Chance of precipitation is 80%.

    Low: 45 °F

    Showers

  • Monday

    Monday: A chance of showers before 8am. Mostly sunny, with a high near 61. Chance of precipitation is 30%.

    High: 61 °F

    Chance
    Showers then
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy frost after 4am. Otherwise, clear, with a low around 32. Calm wind.
Friday
Patchy fog before 9am. Areas of frost before 9am. Otherwise, sunny, with a high near 63. Calm wind.
Friday Night
Mostly cloudy, with a low around 44. Calm wind.
Saturday
Mostly cloudy, then gradually becoming sunny, with a high near 75. Light southeast wind becoming south 5 to 9 mph in the morning.
Saturday Night
A chance of showers, mainly after 2am. Partly cloudy, with a low around 57. South wind 8 to 11 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Showers likely, then showers and possibly a thunderstorm after 2pm. High near 72. Breezy. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before 8pm, then showers likely. Low around 45. Chance of precipitation is 80%.
Monday
A chance of showers before 8am. Mostly sunny, with a high near 61. Chance of precipitation is 30%.
Monday Night
Mostly clear, with a low around 42.
Tuesday
A chance of showers after 8am. Partly sunny, with a high near 65. Chance of precipitation is 50%.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 41. Chance of precipitation is 50%.
Wednesday
A chance of showers. Partly sunny, with a high near 54. Chance of precipitation is 30%.
Wednesday Night
Partly cloudy, with a low around 38.
Thursday
Partly sunny, with a high near 56.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Donora PA
 40.18°N 79.88°W (Elev. 1198 ft)
Last Update:
1:01 am EDT Oct 17, 2025
Forecast Valid:
1am EDT Oct 17, 2025-6pm EDT Oct 23, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation