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 24%
Wind Speed SW 8 mph
Barometer 30.22 in (1024.4 mb)
Dewpoint 23°F (-5°C)
Visibility 10.00 mi
Last update 29 Mar 6:53 pm EDT
Extended Forecast for

Cheswick PA

  • Tonight

    Tonight: Mostly cloudy, with a low around 48. South wind 5 to 7 mph.

    Low: 48 °F

    Mostly Cloudy

  • Monday

    Monday: Scattered showers before 11am, then isolated showers after 5pm. Mostly cloudy, with a high near 66. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 66 °F

    Scattered
    Showers then
    Mostly Cloudy

  • Monday Night

    Monday Night: Scattered showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 2am, then rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 57. Southwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 57 °F

    Scattered
    T-storms then
    Showers
    Likely

  • Tuesday

    Tuesday: Rain likely and possibly a thunderstorm before 2pm, then a slight chance of rain and thunderstorms between 2pm and 5pm, then a slight chance of rain after 5pm. Mostly cloudy, with a high near 77. Southwest wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 77 °F

    Rain Likely
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: A slight chance of rain, then a chance of rain and thunderstorms after 8pm. Mostly cloudy, with a low around 59. Southwest wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain, with thunderstorms also possible after 2pm. High near 72. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 72 °F

    Rain

  • Wednesday Night

    Wednesday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.

    Low: 52 °F

    Rain Likely

  • Thursday

    Thursday: Rain likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.

    High: 76 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.

    Low: 58 °F

    Rain Likely

Detailed Forecast

Tonight
Mostly cloudy, with a low around 48. South wind 5 to 7 mph.
Monday
Scattered showers before 11am, then isolated showers after 5pm. Mostly cloudy, with a high near 66. Southwest wind 10 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Scattered showers and thunderstorms before midnight, then showers likely and possibly a thunderstorm between midnight and 2am, then rain likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 57. Southwest wind around 9 mph, with gusts as high as 20 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Tuesday
Rain likely and possibly a thunderstorm before 2pm, then a slight chance of rain and thunderstorms between 2pm and 5pm, then a slight chance of rain after 5pm. Mostly cloudy, with a high near 77. Southwest wind 10 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night
A slight chance of rain, then a chance of rain and thunderstorms after 8pm. Mostly cloudy, with a low around 59. Southwest wind around 11 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday
Rain, with thunderstorms also possible after 2pm. High near 72. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 52. Chance of precipitation is 60%.
Thursday
Rain likely, with thunderstorms also possible after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 70%.
Thursday Night
Rain likely and possibly a thunderstorm. Mostly cloudy, with a low around 58. Chance of precipitation is 60%.
Friday
Rain likely, mainly after 8am. Mostly cloudy, with a high near 74. Chance of precipitation is 60%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 53. Chance of precipitation is 40%.
Saturday
Rain likely. Mostly cloudy, with a high near 77. Chance of precipitation is 60%.
Saturday Night
Rain likely. Mostly cloudy, with a low around 59. Chance of precipitation is 60%.
Sunday
Rain likely. Mostly cloudy, with a high near 75. Chance of precipitation is 70%.
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ABOUT THIS FORECAST

 
Point Forecast:
Cheswick PA
 40.55°N 79.79°W (Elev. 1066 ft)
Last Update:
7:06 pm EDT Mar 29, 2026
Forecast Valid:
7pm EDT Mar 29, 2026-6pm EDT Apr 5, 2026
 
Forecast Discussion
 
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Additional Resources

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High Temperature

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Chance of Precipitation