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

Pittsburgh/Butler Regional Airport (KBTP)

Lat: 40.78°NLon: 79.96°WElev: 1248ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Mc Grann PA

  • This Afternoon

    This Afternoon: Isolated showers before 2pm, then isolated showers and thunderstorms between 2pm and 3pm. Mostly sunny, with a high near 88. Calm wind. Chance of precipitation is 20%.

    High: 88 °F

    Isolated
    T-storms

  • Tonight

    Tonight: Patchy fog after midnight. Otherwise, partly cloudy, with a low around 67. Calm wind.

    Low: 67 °F

    Partly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Scattered showers and thunderstorms, mainly before 4pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 88. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Scattered
    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 67. Light southwest wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 67 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 83. Southwest wind 5 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.

    High: 83 °F

    Showers

  • Friday Night

    Friday Night: A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 20%.

    Low: 63 °F

    Slight Chance
    T-storms then
    Slight Chance
    Showers

  • Saturday

    Saturday: Mostly sunny, with a high near 85.

    High: 85 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 61.

    Low: 61 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 86.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Isolated showers before 2pm, then isolated showers and thunderstorms between 2pm and 3pm. Mostly sunny, with a high near 88. Calm wind. Chance of precipitation is 20%.
Tonight
Patchy fog after midnight. Otherwise, partly cloudy, with a low around 67. Calm wind.
Thursday
Scattered showers and thunderstorms, mainly before 4pm. Patchy fog before 10am. Otherwise, partly sunny, with a high near 88. Calm wind becoming west 5 to 7 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 67. Light southwest wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 83. Southwest wind 5 to 7 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Friday Night
A slight chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 20%.
Saturday
Mostly sunny, with a high near 85.
Saturday Night
Partly cloudy, with a low around 61.
Sunday
Mostly sunny, with a high near 86.
Sunday Night
Partly cloudy, with a low around 63.
Monday
Mostly sunny, with a high near 87.
Monday Night
Mostly clear, with a low around 64.
Tuesday
Sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Grann PA
 40.77°N 79.53°W (Elev. 801 ft)
Last Update:
7:01 am EDT Jul 8, 2026
Forecast Valid:
12pm EDT Jul 8, 2026-6pm EDT Jul 14, 2026
 
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