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

86°F

30°C

Humidity 53%
Wind Speed SW 8 G 16 mph
Barometer 30.10 in (1018.9 mb)
Dewpoint 67°F (19°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 21 Jun 4:56 pm EDT
Extended Forecast for

Portersville PA

Extreme Heat Warning June 22, 11:00am until June 25, 08:00pm
Click here for hazard details and duration
Extreme Heat Warning

  • Tonight

    Tonight: Mostly clear, with a low around 69. South wind around 7 mph.

    Low: 69 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny and hot, with a high near 92. Heat index values as high as 101. West wind 6 to 8 mph.

    High: 92 °F

    Hot

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 71. Light southwest wind.

    Low: 71 °F

    Mostly Clear

  • Monday

    Monday: Sunny and hot, with a high near 93. Heat index values as high as 100. Calm wind becoming west around 6 mph in the afternoon.

    High: 93 °F

    Hot

  • Monday Night

    Monday Night: Mostly clear, with a low around 72. Calm wind.

    Low: 72 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 71.

    Low: 71 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Chance of precipitation is 40%.

    High: 90 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.

    Low: 70 °F

    Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
Mostly clear, with a low around 69. South wind around 7 mph.
Sunday
Sunny and hot, with a high near 92. Heat index values as high as 101. West wind 6 to 8 mph.
Sunday Night
Mostly clear, with a low around 71. Light southwest wind.
Monday
Sunny and hot, with a high near 93. Heat index values as high as 100. Calm wind becoming west around 6 mph in the afternoon.
Monday Night
Mostly clear, with a low around 72. Calm wind.
Tuesday
Sunny and hot, with a high near 92.
Tuesday Night
Partly cloudy, with a low around 71.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 70. Chance of precipitation is 30%.
Thursday
A chance of showers, then showers likely and possibly a thunderstorm after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Thursday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 70. Chance of precipitation is 60%.
Friday
Showers likely and possibly a thunderstorm. Mostly sunny, with a high near 87. Chance of precipitation is 60%.
Friday Night
Showers and thunderstorms likely. Partly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday
A chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portersville PA
 40.91°N 80.15°W (Elev. 1309 ft)
Last Update:
4:05 pm EDT Jun 21, 2025
Forecast Valid:
5pm EDT Jun 21, 2025-6pm EDT Jun 28, 2025
 
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