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.

Fair

60°F

16°C

Humidity 96%
Wind Speed S 7 mph
Barometer 30.04 in (1017.2 mb)
Dewpoint 59°F (15°C)
Visibility 9.00 mi
Last update 17 May 1:53 am EDT
Extended Forecast for

Mount Oliver PA

  • Overnight

    Overnight: Mostly cloudy, with a low around 60. Southwest wind around 7 mph.

    Low: 60 °F

    Mostly Cloudy

  • Sunday

    Sunday: A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Southwest wind around 8 mph. Chance of precipitation is 20%.

    High: 83 °F

    Mostly Cloudy
    then Slight
    Chance
    T-storms

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 64. South wind around 5 mph.

    Low: 64 °F

    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 91. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 91 °F

    Hot

  • Monday Night

    Monday Night: Partly cloudy, with a low around 70. Southwest wind around 8 mph.

    Low: 70 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Chance of precipitation is 20%.

    High: 90 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A chance of showers after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 50%.

    Low: 70 °F

    Partly Cloudy
    then Chance
    Showers

  • Wednesday

    Wednesday: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 80. Chance of precipitation is 90%.

    High: 80 °F

    Showers

  • Wednesday Night

    Wednesday Night: Showers likely before 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.

    Low: 50 °F

    Showers
    Likely then
    Mostly Cloudy

Detailed Forecast

Overnight
Mostly cloudy, with a low around 60. Southwest wind around 7 mph.
Sunday
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 83. Southwest wind around 8 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 64. South wind around 5 mph.
Monday
Sunny and hot, with a high near 91. Southwest wind 7 to 11 mph, with gusts as high as 21 mph.
Monday Night
Partly cloudy, with a low around 70. Southwest wind around 8 mph.
Tuesday
A slight chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Chance of precipitation is 20%.
Tuesday Night
A chance of showers after 2am. Mostly cloudy, with a low around 70. Chance of precipitation is 50%.
Wednesday
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after 8am. High near 80. Chance of precipitation is 90%.
Wednesday Night
Showers likely before 8pm. Mostly cloudy, with a low around 50. Chance of precipitation is 60%.
Thursday
Partly sunny, with a high near 69.
Thursday Night
Mostly cloudy, with a low around 53.
Friday
A chance of showers. Mostly cloudy, with a high near 71. Chance of precipitation is 50%.
Friday Night
A chance of showers. Mostly cloudy, with a low around 57. Chance of precipitation is 50%.
Saturday
A chance of showers. Mostly cloudy, with a high near 75. Chance of precipitation is 50%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Mount Oliver PA
 40.41°N 79.99°W (Elev. 1191 ft)
Last Update:
2:21 am EDT May 17, 2026
Forecast Valid:
2am EDT May 17, 2026-6pm EDT May 23, 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