Allegheny, Pennsylvania Weather
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Weather Forecast for Allegheny, Pennsylvania : Allegheny County
Issued: 10:05 am EDT Jun 21, 2025 Latitude: 40.4506247 Longitude: -80.0161648 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Sunday Monday Tuesday Wednesday Thursday Friday
Mostly Sunny on Today Mostly Clear on Tonight Sunny on Sunday Sunny on Monday Sunny on Tuesday 40% chance of thunderstorms on Wednesday 50% chance of thunderstorms on Thursday 60% chance of thunderstorms on Friday
High: 90°F Low: 70°F High: 95°F High: 96°F High: 96°F High: 94°F High: 92°F High: 91°F
Low: 73°F Low: 74°F Low: 74°F Low: 73°F Low: 74°F  
Mostly Sunny Mostly Clear Sunny Sunny Sunny Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
BUTLER COUNTY - (KBTP)
79°
Clear
as of 10:06 AM EDST
Rel. Humidity: 74%
Dew Point: 70°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
7 MPH
210° Southwest
Cloud Level(s): Clear
Mostly Sunny on Today Today... Mostly sunny and hot, with a high near 90. Southwest wind 6 to 9 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 70. South wind 3 to 6 mph.
Sunny on Sunday Sunday... Sunny and hot, with a high near 95. Heat index values as high as 105. Southwest wind 5 to 9 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 73. Southwest wind around 5 mph becoming calm in the evening.
Sunny on Monday Monday... Sunny and hot, with a high near 96. Calm wind becoming southwest 5 to 7 mph in the afternoon.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 74.
Sunny on Tuesday Tuesday... Sunny and hot, with a high near 96.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 74.
40% chance of thunderstorms Wednesday Wednesday... A chance of rain before 2pm, then a chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 94. Chance of precipitation is 40%.
30% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers and thunderstorms before 8pm, then a chance of rain after 2am. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
50% chance of thunderstorms Thursday Thursday... A chance of rain and thunderstorms. Mostly sunny and hot, with a high near 92. Chance of precipitation is 50%.
30% chance of thunderstorms Thursday Night Thursday Night... A chance of showers and thunderstorms. Mostly cloudy, with a low around 74. Chance of precipitation is 30%.
60% chance of thunderstorms Friday Friday... Showers likely and possibly a thunderstorm. Mostly sunny and hot, with a high near 91. Chance of precipitation is 60%.
Sun Almanac for Allegheny, Pennsylvania
Sunrise: 05:50 AM
Sunset: 8:54 PM
Civil Sunrise:05:17 AM
Civil Sunset: 9:27 PM
Nautical Sunrise: 04:35 AM
Nautical Sunset: 10:09 PM
Astro Sunrise: 03:45 AM
Astro Sunset: 10:59 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.