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

18°F

-8°C

Humidity 71%
Wind Speed SW 6 mph
Barometer 30.23 in (1026.3 mb)
Dewpoint 10°F (-12°C)
Visibility 10.00 mi
Wind Chill10°F (-12°C)
Last update 18 Mar 12:53 am EDT
Extended Forecast for

Cheswick PA

  • Overnight

    Overnight: Partly cloudy, with a low around 16. Calm wind.

    Low: 16 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Partly sunny, with a high near 39. Calm wind becoming south 5 to 7 mph in the afternoon.

    High: 39 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A slight chance of snow before 9pm. Mostly cloudy, with a low around 31. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.

    Low: 31 °F

    Slight Chance
    Snow then
    Mostly Cloudy

  • Thursday

    Thursday: A chance of rain after 2pm. Mostly cloudy, with a high near 52. South wind 3 to 7 mph. Chance of precipitation is 30%.

    High: 52 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday Night

    Thursday Night: A chance of rain, mainly before 2am. Mostly cloudy, with a low around 38. Light southwest wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Chance Rain

  • Friday

    Friday: Mostly cloudy, with a high near 56.

    High: 56 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: Mostly cloudy, with a high near 61.

    High: 61 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 43.

    Low: 43 °F

    Mostly Cloudy

Detailed Forecast

Overnight
Partly cloudy, with a low around 16. Calm wind.
Wednesday
Partly sunny, with a high near 39. Calm wind becoming south 5 to 7 mph in the afternoon.
Wednesday Night
A slight chance of snow before 9pm. Mostly cloudy, with a low around 31. Calm wind becoming south around 5 mph. Chance of precipitation is 20%.
Thursday
A chance of rain after 2pm. Mostly cloudy, with a high near 52. South wind 3 to 7 mph. Chance of precipitation is 30%.
Thursday Night
A chance of rain, mainly before 2am. Mostly cloudy, with a low around 38. Light southwest wind. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Mostly cloudy, with a high near 56.
Friday Night
A chance of rain. Mostly cloudy, with a low around 40. Chance of precipitation is 40%.
Saturday
Mostly cloudy, with a high near 61.
Saturday Night
Mostly cloudy, with a low around 43.
Sunday
A chance of rain after 2pm. Partly sunny, with a high near 67. Chance of precipitation is 30%.
Sunday Night
A chance of rain. Mostly cloudy, with a low around 36. Chance of precipitation is 30%.
Monday
Sunny, with a high near 48.
Monday Night
Mostly clear, with a low around 26.
Tuesday
Mostly sunny, with a high near 50.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Cheswick PA
 40.53°N 79.82°W (Elev. 886 ft)
Last Update:
11:46 pm EDT Mar 17, 2026
Forecast Valid:
1am EDT Mar 18, 2026-6pm EDT Mar 24, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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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