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

Significant Coastal Impacts to the Mid-Atlantic and Northeast; Tropical Storm Nolo to Impact Hawaii

A strong coastal storm will bring moderate to major coastal flooding, strong winds, heavy rainfall and high surf to the Mid-Atlantic and New England. Tropical Storm Nolo is expected to strengthen into a hurricane Thursday as it moves north toward the Big Island of Hawaii. Heavy rainfall will continue through Saturday, with locally catastrophic flooding possible. Hurricane Watch in effect. Read More >

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fair

55°F

13°C

Humidity 74%
Wind Speed E 8 mph
Barometer 30.37 in (1028.8 mb)
Dewpoint 47°F (8°C)
Visibility 10.00 mi
Wind Chill53°F (12°C)
Last update 24 Sep 12:53 am EDT
Extended Forecast for

Library PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 48. East wind around 9 mph.

    Low: 48 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, then gradually becoming sunny, with a high near 65. East wind 9 to 11 mph.

    High: 65 °F

    Decreasing
    Clouds

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 44. Northeast wind 3 to 8 mph.

    Low: 44 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 69. North wind 5 to 9 mph.

    High: 69 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 47. North wind 5 to 7 mph.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 71.

    High: 71 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 68.

    High: 68 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 48. East wind around 9 mph.
Thursday
Mostly cloudy, then gradually becoming sunny, with a high near 65. East wind 9 to 11 mph.
Thursday Night
Mostly clear, with a low around 44. Northeast wind 3 to 8 mph.
Friday
Sunny, with a high near 69. North wind 5 to 9 mph.
Friday Night
Mostly clear, with a low around 47. North wind 5 to 7 mph.
Saturday
Sunny, with a high near 71.
Saturday Night
Mostly clear, with a low around 49.
Sunday
Mostly sunny, with a high near 68.
Sunday Night
Partly cloudy, with a low around 51.
Monday
Mostly sunny, with a high near 67.
Monday Night
Partly cloudy, with a low around 51.
Tuesday
Sunny, with a high near 72.
Tuesday Night
Partly cloudy, with a low around 54.
Wednesday
Mostly sunny, with a high near 76.
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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:
12:57 am EDT Sep 24, 2026
Forecast Valid:
1am EDT Sep 24, 2026-6pm EDT Sep 30, 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