National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Light Rain Fog/Mist

64°F

18°C

Humidity 100%
Wind Speed Calm
Barometer 30.03 in (1016.7 mb)
Dewpoint 64°F (18°C)
Visibility 0.75 mi
Last update 25 May 1:53 am EDT
Extended Forecast for

Library PA

  • Overnight

    Overnight: A chance of showers, mainly before 5am. Cloudy, with a low around 61. Southwest wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 61 °F

    Chance
    Showers

  • Memorial Day

    Memorial Day: Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 76. North wind 5 to 7 mph.

    High: 76 °F

    Patchy Fog
    then Mostly
    Cloudy

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 57. Light north wind.

    Low: 57 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 81. Calm wind.

    High: 81 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Mostly Cloudy

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 80. Chance of precipitation is 30%.

    High: 80 °F

    Chance
    Showers

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 61.

    Low: 61 °F

    Mostly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 54.

    Low: 54 °F

    Mostly Clear

Detailed Forecast

Overnight
A chance of showers, mainly before 5am. Cloudy, with a low around 61. Southwest wind around 6 mph. Chance of precipitation is 50%. New precipitation amounts between a tenth and quarter of an inch possible.
Memorial Day
Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 76. North wind 5 to 7 mph.
Monday Night
Mostly cloudy, with a low around 57. Light north wind.
Tuesday
Partly sunny, with a high near 81. Calm wind.
Tuesday Night
Mostly cloudy, with a low around 62. Calm wind.
Wednesday
A chance of showers, with thunderstorms also possible after 5pm. Mostly cloudy, with a high near 80. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 61.
Thursday
Sunny, with a high near 79.
Thursday Night
Mostly clear, with a low around 54.
Friday
Sunny, with a high near 77.
Friday Night
Partly cloudy, with a low around 53.
Saturday
Mostly sunny, with a high near 74.
Saturday Night
Partly cloudy, with a low around 54.
Sunday
Mostly sunny, with a high near 74.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Library PA
 40.28°N 80.01°W (Elev. 1201 ft)
Last Update:
2:16 am EDT May 25, 2026
Forecast Valid:
2am EDT May 25, 2026-6pm EDT May 31, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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