Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Mostly Cloudy

39°F

4°C

Humidity 79%
Wind Speed N 8 mph
Barometer 30.11 in (1020.8 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill33°F (1°C)
Last update 20 Apr 2:53 am EDT
Extended Forecast for

West Mifflin PA

Frost Advisory until April 20, 10:00am
Freeze Warning April 20, 11:00pm until April 21, 09:00am
Click here for hazard details and duration
Frost Advisory
Freeze Warning
  •  
    Frost Advisory until April 20, 10:00am

    NOW until 10:00am Mon

    Frost Advisory

  • Overnight

    Low: 34 °F

    Scattered
    Rain/Snow

  • Monday

    Monday: Mostly sunny, with a high near 48. Northwest wind 9 to 13 mph.

    High: 48 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 29. Northwest wind 5 to 7 mph becoming calm  in the evening.

    Low: 29 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 66. Southwest wind 5 to 11 mph, with gusts as high as 21 mph.

    High: 66 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Scattered showers, with thunderstorms also possible after 5am.  Mostly cloudy, with a low around 54. South wind around 8 mph.  Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Isolated
    Showers then
    Scattered
    Showers

  • Wednesday

    Wednesday: Scattered showers and thunderstorms before 8am, then scattered showers between 8am and 2pm, then scattered showers and thunderstorms after 2pm.  Partly sunny, with a high near 69. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 69 °F

    Scattered
    Showers

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 48.

    Low: 48 °F

    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 77.

    High: 77 °F

    Sunny

Detailed Forecast

Overnight
Scattered rain and snow showers. Mostly cloudy, with a low around 34. Northwest wind around 7 mph. Chance of precipitation is 30%. Little or no snow accumulation expected.
Monday
Mostly sunny, with a high near 48. Northwest wind 9 to 13 mph.
Monday Night
Mostly clear, with a low around 29. Northwest wind 5 to 7 mph becoming calm in the evening.
Tuesday
Sunny, with a high near 66. Southwest wind 5 to 11 mph, with gusts as high as 21 mph.
Tuesday Night
Scattered showers, with thunderstorms also possible after 5am. Mostly cloudy, with a low around 54. South wind around 8 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Scattered showers and thunderstorms before 8am, then scattered showers between 8am and 2pm, then scattered showers and thunderstorms after 2pm. Partly sunny, with a high near 69. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
Sunny, with a high near 77.
Thursday Night
Partly cloudy, with a low around 53.
Friday
Mostly sunny, with a high near 80.
Friday Night
A chance of showers. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
Saturday
Showers likely. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.
Saturday Night
Showers likely. Mostly cloudy, with a low around 51. Chance of precipitation is 60%.
Sunday
A chance of showers. Partly sunny, with a high near 69. Chance of precipitation is 40%.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
West Mifflin PA
 40.34°N 79.91°W (Elev. 1086 ft)
2:21 am EDT Apr 20, 2026
3am EDT Apr 20, 2026-6pm EDT Apr 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database