Library, Pennsylvania Weather
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Weather Forecast for Library, Pennsylvania : Allegheny County
Issued: 12:29 pm EDT Apr 29, 2025 Latitude: 40.2897921 Longitude: -80.0097743 View on Google Maps

MouseOver for Detail Forecast
This Afternoon Tonight Wednesday Thursday Friday Saturday Sunday Monday
30% chance of thunderstorms on This Afternoon 70% chance of thunderstorms on Tonight Mostly Sunny on Wednesday 80% chance of thunderstorms on Thursday 80% chance of thunderstorms on Friday 50% chance of on Saturday Sunny on Sunday Sunny on Monday
High: 82°F Low: 50°F High: 69°F High: 79°F High: 73°F High: 60°F High: 66°F High: 70°F
Low: 54°F Low: 62°F Low: 50°F Low: 40°F Low: 43°F  
Thunderstorms Thunderstorms Mostly Sunny Thunderstorms Thunderstorms Partly Sunny Sunny Sunny
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Current Conditions at
ALLEGHENY COUNTY ARPT - (KAGC)
77°
Mostly Cloudy
as of 11:53 AM EDST
Rel. Humidity: 50%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.04 in.
Flight Rule: VFR
Wind Data
18 MPH
Gust: 26 MPH
220° Southwest
Cloud Level(s): Scattered at 4200ft, Scattered at 5000ft, Broken at 7000ft
Current Conditions at
WASHINGTON - (KAFJ)
77°
Mostly Cloudy
as of 11:56 AM EDST
Rel. Humidity: 57%
Dew Point: 61°F
Visibility: 10 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
15 MPH
Gust: 21 MPH
220° Southwest
Cloud Level(s): Few at 4000ft, Scattered at 6000ft, Broken at 7500ft
Current Conditions at
PITTSBURGH - (KPIT)
79°
Mostly Cloudy
as of 11:51 AM EDST
Rel. Humidity: 47%
Dew Point: 57°F
Visibility: 10 Miles
Pressure: 30.03 in.
Flight Rule: VFR
Wind Data
21 MPH
Gust: 32 MPH
210° Southwest
Cloud Level(s): Few at 4400ft, Scattered at 9000ft, Broken at 25000ft
Current Conditions at
LATROBE - (KLBE)
77°
Partly Cloudy
as of 11:47 AM EDST
Rel. Humidity: 50%
Dew Point: 57°F
Visibility: 20 Miles
Pressure: 30.08 in.
Flight Rule: VFR
Wind Data
21 MPH
Gust: 29 MPH
210° Southwest
Cloud Level(s): Scattered at 11000ft
30% chance of thunderstorms This Afternoon This Afternoon... A chance of showers and thunderstorms, mainly after 5pm. Partly sunny, with a high near 82. Southwest wind around 17 mph, with gusts as high as 29 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
70% chance of thunderstorms Tonight Tonight... Showers and thunderstorms likely before 2am, then a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 50. Southwest wind 8 to 14 mph becoming northwest after midnight. Winds could gust as high as 25 mph. Chance of precipitation is 70%. New precipitation amounts between a quarter and half of an inch possible.
Mostly Sunny on Wednesday Wednesday... Mostly sunny, with a high near 69. North wind 3 to 6 mph.
20% chance of rain Wednesday Night Wednesday Night... A slight chance of showers after 2am. Partly cloudy, with a low around 54. Light northeast wind. Chance of precipitation is 20%.
80% chance of thunderstorms Thursday Thursday... A chance of showers and thunderstorms before 2pm, then showers between 2pm and 5pm, then showers and possibly a thunderstorm after 5pm. High near 79. South wind 5 to 11 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
80% chance of thunderstorms Thursday Night Thursday Night... Showers and possibly a thunderstorm, mainly before 2am, then a chance of showers and thunderstorms after 2am. Low around 62. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
80% chance of thunderstorms Friday Friday... Showers, with thunderstorms also possible after 2pm. High near 73. Chance of precipitation is 80%.
60% chance of thunderstorms Friday Night Friday Night... Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
50% chance of Saturday Saturday... A chance of showers. Partly sunny, with a high near 60. Chance of precipitation is 50%.
Cloudy on Saturday Night Saturday Night... Partly cloudy, with a low around 40.
Sunny on Sunday Sunday... Sunny, with a high near 66.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 43.
Sunny on Monday Monday... Sunny, with a high near 70.
Current Radar Image


Sun Almanac for Library, Pennsylvania
Sunrise: 06:21 AM
Sunset: 8:13 PM
Civil Sunrise:05:52 AM
Civil Sunset: 8:43 PM
Nautical Sunrise: 05:16 AM
Nautical Sunset: 9:18 PM
Astro Sunrise: 04:38 AM
Astro Sunset: 9:57 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.