Gretna, Pennsylvania Weather
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Weather Forecast for Gretna, Pennsylvania : Washington County
Issued: 10:05 am EDT Jun 21, 2025 Latitude: 40.2459039 Longitude: -80.3031169 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 30% chance of thunderstorms on Wednesday 50% chance of thunderstorms on Thursday 50% chance of thunderstorms on Friday
High: 88°F Low: 68°F High: 92°F High: 93°F High: 93°F High: 91°F High: 90°F High: 88°F
Low: 71°F Low: 72°F Low: 72°F Low: 71°F Low: 72°F  
Mostly Sunny Mostly Clear Sunny Sunny Sunny Thunderstorms Thunderstorms Thunderstorms
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Current Conditions at
PITTSBURGH - (KPIT)
81°
Mostly Cloudy
as of 10:51 AM EDST
Rel. Humidity: 57%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
8 MPH
250° West
Cloud Level(s): Few at 4000ft, Broken at 25000ft
Current Conditions at
WHEELING - (KHLG)
79°
Clear
as of 10:53 AM EDST
Rel. Humidity: 65%
Dew Point: 66°F
Visibility: 10 Miles
Pressure: 30.17 in.
Flight Rule: VFR
Wind Data
8 MPH
220° Southwest
Cloud Level(s): Clear
Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
81°
Mostly Clear
as of 10:53 AM EDST
Rel. Humidity: 57%
Dew Point: 64°F
Visibility: 10 Miles
Pressure: 30.16 in.
Flight Rule: VFR
Wind Data
10 MPH
Gust: 18 MPH
220° Southwest
Cloud Level(s): Few at 4500ft
Mostly Sunny on Today Today... Mostly sunny, with a high near 88. Southwest wind 8 to 10 mph.
Mostly Clear on Tonight Tonight... Mostly clear, with a low around 68. South wind around 7 mph.
Sunny on Sunday Sunday... Sunny and hot, with a high near 92. Heat index values as high as 100. Southwest wind 7 to 10 mph.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 71. Southwest wind 3 to 6 mph.
Sunny on Monday Monday... Sunny and hot, with a high near 93. West wind 3 to 7 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 72.
Sunny on Tuesday Tuesday... Sunny and hot, with a high near 93.
Cloudy on Tuesday Night Tuesday Night... Partly cloudy, with a low around 72.
30% 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 91. Chance of precipitation is 30%.
30% chance of thunderstorms Wednesday Night Wednesday Night... A chance of showers and thunderstorms before 8pm, then a chance of rain after 2am. Partly cloudy, with a low around 71. 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 90. 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 72. Chance of precipitation is 30%.
50% chance of thunderstorms Friday Friday... A chance of showers and thunderstorms. Mostly sunny, with a high near 88. Chance of precipitation is 50%.
Current Radar Image


Sun Almanac for Gretna, Pennsylvania
Sunrise: 05:52 AM
Sunset: 8:54 PM
Civil Sunrise:05:19 AM
Civil Sunset: 9:27 PM
Nautical Sunrise: 04:37 AM
Nautical Sunset: 10:09 PM
Astro Sunrise: 03:47 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.