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

Hazardous Weather Conditions

Current conditions at

Pittsburgh/Butler Regional Airport (KBTP)

Lat: 40.78°NLon: 79.96°WElev: 1248ft.

Partly Cloudy

35°F

2°C

Humidity 61%
Wind Speed N 10 G 16 mph
Barometer 30.28 in (1027.1 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 20 Apr 8:56 am EDT
Extended Forecast for

Mc Grann PA

Freeze Warning April 20, 11:00pm until April 21, 09:00am
Click here for hazard details and duration
Freeze Warning

  • Today

    Today: Partly sunny, with a high near 47. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.

    High: 47 °F

    Partly Sunny

  • Tonight

    Tonight: Widespread frost after 2am. Otherwise, mostly clear, with a low around 26. Northwest wind around 5 mph becoming calm in the evening.

    Low: 26 °F

    Mostly Clear
    then Frost

  • Tuesday

    Tuesday: Widespread frost before 8am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming southwest 5 to 9 mph in the morning.

    High: 64 °F

    Frost then
    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Scattered showers and thunderstorms. Mostly cloudy, with a low around 50. South wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 50 °F

    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers. Partly sunny, with a high near 70. Southwest wind 5 to 7 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    High: 70 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 76.

    High: 76 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Friday

    Friday: A chance of showers after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 30%.

    High: 79 °F

    Mostly Sunny
    then Chance
    Showers

Detailed Forecast

Today
Partly sunny, with a high near 47. Northwest wind 7 to 10 mph, with gusts as high as 20 mph.
Tonight
Widespread frost after 2am. Otherwise, mostly clear, with a low around 26. Northwest wind around 5 mph becoming calm in the evening.
Tuesday
Widespread frost before 8am. Otherwise, mostly sunny, with a high near 64. Calm wind becoming southwest 5 to 9 mph in the morning.
Tuesday Night
Scattered showers and thunderstorms. Mostly cloudy, with a low around 50. South wind around 5 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Scattered showers. Partly sunny, with a high near 70. Southwest wind 5 to 7 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday Night
Partly cloudy, with a low around 44.
Thursday
Mostly sunny, with a high near 76.
Thursday Night
Partly cloudy, with a low around 51.
Friday
A chance of showers after 2pm. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 56. Chance of precipitation is 50%.
Saturday
Showers likely. Mostly cloudy, with a high near 71. Chance of precipitation is 70%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 48. Chance of precipitation is 50%.
Sunday
A chance of showers. Partly sunny, with a high near 68. Chance of precipitation is 40%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Mc Grann PA
 40.77°N 79.53°W (Elev. 801 ft)
Last Update:
9:01 am EDT Apr 20, 2026
Forecast Valid:
9am EDT Apr 20, 2026-6pm EDT Apr 26, 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