Hazardous Weather Conditions

Current conditions at

Pittsburgh/Butler Regional Airport (KBTP)

Lat: 40.78°NLon: 79.96°WElev: 1248ft.

Fair

72°F

22°C

Humidity 84%
Wind Speed Calm
Barometer 30.05 in (1017.4 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Last update 9 Aug 8:56 pm EDT
Extended Forecast for

Mc Grann PA

  • Tonight

    Tonight: A slight chance of showers, then a chance of showers and thunderstorms after 5am.  Patchy fog after 3am.  Otherwise, partly cloudy, with a low around 65. Calm wind.  Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 65 °F

    Mostly Clear
    then Chance
    T-storms and
    Patchy Fog

  • Monday

    Monday: Showers and thunderstorms likely before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm.  Mostly cloudy, with a high near 85. Southwest wind 7 to 11 mph, with gusts as high as 22 mph.  Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 85 °F

    Showers
    Likely

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 11pm, then a chance of showers after 11pm.  Patchy fog after 3am.  Otherwise, mostly cloudy, with a low around 65. Southwest wind 5 to 7 mph becoming calm  in the evening.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 65 °F

    Showers
    Likely and
    Patchy Fog

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm.  Patchy fog between 7am and 8am.  Otherwise, mostly cloudy, with a high near 82. West wind 3 to 7 mph.  Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Showers
    Likely and
    Patchy Fog

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 62. Light southwest wind.  Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Showers
    Likely

  • Wednesday

    Wednesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm.  Mostly cloudy, with a high near 82. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 82 °F

    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm.  Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers before 8am, then a chance of showers after 2pm.  Partly sunny, with a high near 80. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 8pm.  Mostly cloudy, with a low around 57. Chance of precipitation is 30%.

    Low: 57 °F

    Chance
    Showers then
    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers, then a chance of showers and thunderstorms after 5am. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms likely before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Mostly cloudy, with a high near 85. Southwest wind 7 to 11 mph, with gusts as high as 22 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely before 10pm, then showers likely and possibly a thunderstorm between 10pm and 11pm, then a chance of showers after 11pm. Patchy fog after 3am. Otherwise, mostly cloudy, with a low around 65. Southwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Tuesday
Showers likely and possibly a thunderstorm. Patchy fog between 7am and 8am. Otherwise, mostly cloudy, with a high near 82. West wind 3 to 7 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 62. Light southwest wind. Chance of precipitation is 60%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Thursday
A chance of showers before 8am, then a chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Thursday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 57. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 54.
Saturday
Mostly sunny, with a high near 78.
Saturday Night
A chance of showers. Partly cloudy, with a low around 57. Chance of precipitation is 30%.
Sunday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 30%.
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Grann PA
 40.77°N 79.53°W (Elev. 801 ft)
7:41 pm EDT Aug 9, 2026
9pm EDT Aug 9, 2026-6pm EDT Aug 16, 2026
 
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Additional Resources

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