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.

Fair

58°F

14°C

Humidity 32%
Wind Speed S 3 mph
Barometer 30.52 in (1034.9 mb)
Dewpoint 28°F (-2°C)
Visibility 10.00 mi
Last update 18 Oct 5:56 pm EDT
Extended Forecast for

Mc Grann PA

  • Tonight

    Tonight: Patchy fog after 1am. Areas of frost after 3am. Otherwise, clear, with a low around 33. Calm wind.

    Low: 33 °F

    Clear then
    Areas Frost
    and Patchy
    Fog

  • Monday

    Monday: Patchy dense fog before 10am. Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 66. Calm wind.

    High: 66 °F

    Frost and
    Patchy Dense
    Fog then
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 2am. Patchy frost after 5am. Otherwise, clear, with a low around 35. Calm wind.

    Low: 35 °F

    Clear then
    Patchy Frost
    and Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Patchy frost before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 67. Calm wind becoming north around 5 mph in the afternoon.

    High: 67 °F

    Patchy Frost
    and Patchy
    Fog then
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 34. North wind around 5 mph becoming calm after midnight.

    Low: 34 °F

    Mostly Clear

  • Wednesday

    Wednesday: Patchy frost before 9am. Otherwise, sunny, with a high near 66.

    High: 66 °F

    Patchy Frost
    then Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 34.

    Low: 34 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 66.

    High: 66 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 39.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
Patchy fog after 1am. Areas of frost after 3am. Otherwise, clear, with a low around 33. Calm wind.
Monday
Patchy dense fog before 10am. Widespread frost, mainly before 8am. Otherwise, sunny, with a high near 66. Calm wind.
Monday Night
Patchy fog after 2am. Patchy frost after 5am. Otherwise, clear, with a low around 35. Calm wind.
Tuesday
Patchy fog before 10am. Patchy frost before 9am. Otherwise, partly sunny, then gradually becoming sunny, with a high near 67. Calm wind becoming north around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 34. North wind around 5 mph becoming calm after midnight.
Wednesday
Patchy frost before 9am. Otherwise, sunny, with a high near 66.
Wednesday Night
Clear, with a low around 34.
Thursday
Sunny, with a high near 66.
Thursday Night
Mostly clear, with a low around 39.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 35.
Saturday
Sunny, with a high near 61.
Saturday Night
Mostly clear, with a low around 35.
Sunday
Mostly sunny, with a high near 64.
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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:
2:21 pm EDT Oct 18, 2026
Forecast Valid:
6pm EDT Oct 18, 2026-6pm EDT Oct 25, 2026
 
Forecast Discussion
 
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