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.

Partly Cloudy

76°F

24°C

Humidity 40%
Wind Speed S 6 mph
Barometer 29.92 in (1013.1 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 4 Nov 2:56 pm EST
Extended Forecast for

Mc Grann PA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 81. South wind around 7 mph, with gusts as high as 20 mph.

    High: 81 °F

    Partly Sunny

  • Tonight

    Tonight: Rain. Low around 60. South wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 60 °F

    Rain

  • Thursday

    Thursday: A chance of rain between 8am and 9am. Mostly cloudy, then gradually becoming sunny, with a high near 70. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Chance Rain
    then Mostly
    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 46. Light southwest wind.

    Low: 46 °F

    Partly Cloudy

  • Friday

    Friday: A chance of rain after 1pm. Mostly cloudy, with a high near 62. Calm wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 30%.

    High: 62 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday Night

    Friday Night: A chance of rain, mainly before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.

    Low: 38 °F

    Chance Rain

  • Saturday

    Saturday: A chance of rain. Mostly cloudy, with a high near 53. Chance of precipitation is 50%.

    High: 53 °F

    Chance Rain

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 56.

    High: 56 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 81. South wind around 7 mph, with gusts as high as 20 mph.
Tonight
Rain. Low around 60. South wind 6 to 8 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Thursday
A chance of rain between 8am and 9am. Mostly cloudy, then gradually becoming sunny, with a high near 70. Southwest wind 7 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Partly cloudy, with a low around 46. Light southwest wind.
Friday
A chance of rain after 1pm. Mostly cloudy, with a high near 62. Calm wind becoming west 5 to 8 mph in the morning. Chance of precipitation is 30%.
Friday Night
A chance of rain, mainly before 1am. Mostly cloudy, with a low around 38. Chance of precipitation is 30%.
Saturday
A chance of rain. Mostly cloudy, with a high near 53. Chance of precipitation is 50%.
Saturday Night
Mostly cloudy, with a low around 34.
Sunday
Mostly sunny, with a high near 56.
Sunday Night
Partly cloudy, with a low around 32.
Monday
Mostly sunny, with a high near 58.
Monday Night
Mostly clear, with a low around 33.
Tuesday
Mostly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mc Grann PA
 40.77°N 79.53°W (Elev. 801 ft)
Last Update:
3:21 pm EST Nov 4, 2026
Forecast Valid:
3pm EST Nov 4, 2026-6pm EST Nov 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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