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.

Fair

59°F

15°C

Humidity 100%
Wind Speed Calm
Barometer 30.09 in (1018.9 mb)
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Last update 4 Aug 1:56 am EDT
Extended Forecast for

Harrison Township PA

  • Overnight

    Overnight: Patchy fog. Otherwise, mostly clear, with a low around 55. Calm wind.

    Low: 55 °F

    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog between 9am and 10am. Otherwise, sunny, with a high near 86. Calm wind.

    High: 86 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 65. East wind around 5 mph becoming calm after midnight.

    Low: 65 °F

    Mostly Clear

  • Wednesday

    Wednesday: Scattered showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 88 °F

    Partly Sunny
    then
    Scattered
    T-storms

  • Wednesday Night

    Wednesday Night: Scattered showers and thunderstorms before 2am, then isolated showers. Mostly cloudy, with a low around 68. Light south wind. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Scattered
    T-storms then
    Scattered
    Showers

  • Thursday

    Thursday: 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. Partly sunny, with a high near 87. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 87 °F

    Chance
    Showers then
    Showers
    Likely

  • Thursday Night

    Thursday Night: Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.

    Low: 68 °F

    Showers
    Likely

  • Friday

    Friday: A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 85. Chance of precipitation is 80%.

    High: 85 °F

    Chance
    Showers then
    Showers

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm, mainly before 2am. Low around 66. Chance of precipitation is 80%.

    Low: 66 °F

    Showers

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly clear, with a low around 55. Calm wind.
Tuesday
Patchy fog between 9am and 10am. Otherwise, sunny, with a high near 86. Calm wind.
Tuesday Night
Mostly clear, with a low around 65. East wind around 5 mph becoming calm after midnight.
Wednesday
Scattered showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 88. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Scattered showers and thunderstorms before 2am, then isolated showers. Mostly cloudy, with a low around 68. Light south wind. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
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. Partly sunny, with a high near 87. Chance of precipitation is 70%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Showers likely and possibly a thunderstorm before 8pm, then a chance of showers. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Friday
A chance of showers, then showers and possibly a thunderstorm after 2pm. High near 85. Chance of precipitation is 80%.
Friday Night
Showers and possibly a thunderstorm, mainly before 2am. Low around 66. Chance of precipitation is 80%.
Saturday
Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 85. Chance of precipitation is 60%.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 87. Chance of precipitation is 30%.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Monday
A chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Harrison Township PA
 40.63°N 79.72°W (Elev. 997 ft)
Last Update:
2:21 am EDT Aug 4, 2026
Forecast Valid:
3am EDT Aug 4, 2026-6pm EDT Aug 10, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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