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Undercliff, Pennsylvania Weather Forecast
Undercliff, Pennsylvania Weather
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Weather Forecast for Undercliff, Pennsylvania : Allegheny County
Issued: 6:14 pm EST Jan 22, 2026 Latitude: 40.512013 Longitude: -79.9467191 View on Google Maps

MouseOver for Detail Forecast
Tonight Friday Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Cloudy on Tonight Partly Sunny on Friday 20% chance of snow on Saturday 100% chance of snow on Sunday 60% chance of snow on Monday Partly Sunny on Tuesday 40% chance of snow on Wednesday 40% chance of snow on Thursday
Low: 17°F High: 12 °F High: 15°F High: 25°F High: 19°F High: 18°F High: 23°F High: 18°F
Low: 0 °F Low: 11°F Low: 13°F Low: -2°F Low: 9°F Low: 7 °F  
Mostly Cloudy Partly Sunny Snow Snow Snow Partly Sunny Snow Snow
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Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
28°
Feels like 18°F
Clear
as of 6:53 PM EST
Rel. Humidity: 39%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.12 in.
Flight Rule: VFR
Wind Data
12 MPH
250° West
Cloud Level(s): Clear
Current Conditions at
PITTSBURGH - (KPIT)
28°
Feels like 19°F
Mostly Cloudy
as of 6:51 PM EST
Rel. Humidity: 39%
Dew Point: 7°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
10 MPH
240° Southwest
Cloud Level(s): Broken at 22000ft
Current Conditions at
BUTLER COUNTY - (KBTP)
27°
Feels like 15°F
Clear
as of 6:56 PM EST
Rel. Humidity: 45%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.13 in.
Flight Rule: VFR
Wind Data
13 MPH
240° Southwest
Cloud Level(s): Clear
Current Conditions at
LATROBE - (KLBE)
28°
Feels like 19°F
Clear
as of 6:55 PM EST
Rel. Humidity: 42%
Dew Point: 9°F
Visibility: 10 Miles
Pressure: 30.15 in.
Flight Rule: VFR
Wind Data
10 MPH
220° Southwest
Cloud Level(s): Clear
Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 17. West wind around 8 mph.
Partly Sunny on Friday Friday... Partly sunny, with a temperature falling to around 12 by 5pm. Wind chill values as low as -2. West wind 10 to 15 mph, with gusts as high as 25 mph.
Cloudy on Friday Night Friday Night... Partly cloudy, with a low around 0. Wind chill values as low as -8. Northwest wind 5 to 10 mph becoming light north after midnight.
20% chance of snow Saturday Saturday... A slight chance of snow after 1pm. Mostly cloudy and cold, with a high near 15. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 20%.
90% chance of snow Saturday Night Saturday Night... Snow. Low around 11. East wind 7 to 9 mph. Chance of precipitation is 90%. New snow accumulation of 2 to 4 inches possible.
100% chance of snow Sunday Sunday... Snow. The snow could be heavy at times. High near 25. Chance of precipitation is 100%.
90% chance of snow Sunday Night Sunday Night... Snow. Low around 13. Chance of precipitation is 90%.
60% chance of snow Monday Monday... Snow likely, mainly before 1pm. Mostly cloudy, with a high near 19. Chance of precipitation is 60%.
Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around -2.
Partly Sunny on Tuesday Tuesday... Partly sunny, with a high near 18.
Mostly Cloudy on Tuesday Night Tuesday Night... Mostly cloudy, with a low around 9.
40% chance of snow Wednesday Wednesday... A chance of snow. Mostly cloudy, with a high near 23. Chance of precipitation is 40%.
40% chance of snow Wednesday Night Wednesday Night... A chance of snow. Mostly cloudy, with a low around 7. Chance of precipitation is 40%.
40% chance of snow Thursday Thursday... A chance of snow. Mostly cloudy, with a high near 18. Chance of precipitation is 40%.
Current Radar Image


Sun Almanac for Undercliff, Pennsylvania
Sunrise: 07:37 AM
Sunset: 5:26 PM
Civil Sunrise:07:08 AM
Civil Sunset: 5:55 PM
Nautical Sunrise: 06:34 AM
Nautical Sunset: 6:28 PM
Astro Sunrise: 06:02 AM
Astro Sunset: 7:01 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.