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

Hazardous Weather Conditions

Current conditions at

Pittsburgh - Allegheny County Airport (KAGC)

Lat: 40.36°NLon: 79.92°WElev: 1237ft.

Fair

48°F

9°C

Humidity 50%
Wind Speed E 3 mph
Barometer 30.48 in (1033.0 mb)
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Last update 18 Oct 11:53 pm EDT
Extended Forecast for

McKeesport PA

Frost Advisory October 19, 01:00am until October 19, 09:00am
Click here for hazard details and duration
Frost Advisory

  • Overnight

    Overnight: Patchy fog after 3am. Otherwise, clear, with a low around 36. Calm wind.

    Low: 36 °F

    Patchy Fog

  • Monday

    Monday: Patchy fog before 9am. Areas of frost before 10am. Otherwise, sunny, with a high near 64. Calm wind.

    High: 64 °F

    Areas Frost
    and Patchy
    Fog then
    Sunny

  • Monday Night

    Monday Night: Patchy fog after 4am. Otherwise, clear, with a low around 37. Calm wind.

    Low: 37 °F

    Clear then
    Patchy Fog

  • Tuesday

    Tuesday: Patchy fog before 10am. Otherwise, sunny, with a high near 65. Calm wind becoming north 5 to 7 mph in the afternoon.

    High: 65 °F

    Patchy Fog
    then Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 38. Northeast wind around 5 mph.

    Low: 38 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 65.

    High: 65 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 37.

    Low: 37 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 64.

    High: 64 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 42.

    Low: 42 °F

    Mostly Clear

Detailed Forecast

Overnight
Patchy fog after 3am. Otherwise, clear, with a low around 36. Calm wind.
Monday
Patchy fog before 9am. Areas of frost before 10am. Otherwise, sunny, with a high near 64. Calm wind.
Monday Night
Patchy fog after 4am. Otherwise, clear, with a low around 37. Calm wind.
Tuesday
Patchy fog before 10am. Otherwise, sunny, with a high near 65. Calm wind becoming north 5 to 7 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 38. Northeast wind around 5 mph.
Wednesday
Sunny, with a high near 65.
Wednesday Night
Clear, with a low around 37.
Thursday
Sunny, with a high near 64.
Thursday Night
Mostly clear, with a low around 42.
Friday
Sunny, with a high near 62.
Friday Night
Mostly clear, with a low around 38.
Saturday
Sunny, with a high near 62.
Saturday Night
Mostly clear, with a low around 37.
Sunday
Mostly sunny, with a high near 64.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
McKeesport PA
 40.36°N 79.88°W (Elev. 997 ft)
Last Update:
10:16 pm EDT Oct 18, 2026
Forecast Valid:
12am EDT Oct 19, 2026-6pm EDT Oct 25, 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