National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Pittsburgh International Airport (KPIT)

Lat: 40.48°NLon: 80.21°WElev: 1203ft.

Mostly Cloudy

79°F

26°C

Humidity 65%
Wind Speed W 8 mph
Barometer 29.97 in (1014.6 mb)
Dewpoint 66°F (19°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 10 Sep 5:51 pm EDT
Extended Forecast for

McDonald PA

  • Tonight

    Tonight: A chance of showers and thunderstorms before 8pm, then a slight chance of showers. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 62. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    Showers and
    Patchy Fog

  • Friday

    Friday: Partly sunny, with a high near 79. Light northeast wind.

    High: 79 °F

    Partly Sunny

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 62. Light east wind.

    Low: 62 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 80. Light southeast wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 80 °F

    Chance
    Showers then
    Showers

  • Saturday Night

    Saturday Night: Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 67. Southwest wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Showers then
    Chance
    Showers

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 20%.

    High: 81 °F

    Partly Sunny
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Partly cloudy, with a low around 60.

    Low: 60 °F

    Partly Cloudy

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 8pm, then a slight chance of showers. Patchy fog after 1am. Otherwise, mostly cloudy, with a low around 62. West wind around 6 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
Partly sunny, with a high near 79. Light northeast wind.
Friday Night
Mostly cloudy, with a low around 62. Light east wind.
Saturday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 80. Light southeast wind becoming south 5 to 9 mph in the morning. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Saturday Night
Showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am. Low around 67. Southwest wind around 6 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
A slight chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Chance of precipitation is 20%.
Sunday Night
Mostly cloudy, with a low around 61.
Monday
Mostly sunny, with a high near 76.
Monday Night
Partly cloudy, with a low around 60.
Tuesday
Mostly sunny, with a high near 83.
Tuesday Night
A chance of showers. Partly cloudy, with a low around 65. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 81. Chance of precipitation is 50%.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 66. Chance of precipitation is 40%.
Thursday
Showers likely. Partly sunny, with a high near 79. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
McDonald PA
 40.37°N 80.26°W (Elev. 1096 ft)
Last Update:
2:21 pm EDT Sep 10, 2026
Forecast Valid:
6pm EDT Sep 10, 2026-6pm EDT Sep 17, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation