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.

Overcast

46°F

8°C

Humidity 86%
Wind Speed Vrbl 6 mph
Barometer 29.91 in (1013.6 mb)
Dewpoint 42°F (6°C)
Visibility 8.00 mi
Wind Chill43°F (6°C)
Last update 14 May 11:53 am EDT
Extended Forecast for

Belle Vernon PA

  • This Afternoon

    This Afternoon: A slight chance of showers before 3pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 56. Northwest wind 11 to 13 mph. Chance of precipitation is 20%.

    High: 56 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: A chance of showers or sprinkles before 8pm, then a chance of sprinkles between 8pm and 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 41. West wind 5 to 8 mph. Chance of precipitation is 30%.

    Low: 41 °F

    Chance
    Showers then
    Partly Cloudy

  • Friday

    Friday: Increasing clouds, with a high near 70. West wind 3 to 6 mph.

    High: 70 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 49. Light and variable wind.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Southwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Partly Sunny
    then Chance
    T-storms

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 62. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 2pm. High near 82. Chance of precipitation is 80%.

    High: 82 °F

    Showers then
    Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 8pm. Partly cloudy, with a low around 61. Chance of precipitation is 30%.

    Low: 61 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Sunny and hot, with a high near 90.

    High: 90 °F

    Hot

Detailed Forecast

This Afternoon
A slight chance of showers before 3pm, then a slight chance of showers after 5pm. Mostly cloudy, with a high near 56. Northwest wind 11 to 13 mph. Chance of precipitation is 20%.
Tonight
A chance of showers or sprinkles before 8pm, then a chance of sprinkles between 8pm and 10pm. Mostly cloudy, then gradually becoming mostly clear, with a low around 41. West wind 5 to 8 mph. Chance of precipitation is 30%.
Friday
Increasing clouds, with a high near 70. West wind 3 to 6 mph.
Friday Night
Mostly cloudy, with a low around 49. Light and variable wind.
Saturday
A chance of showers and thunderstorms after 2pm. Partly sunny, with a high near 81. Southwest wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
A chance of showers and thunderstorms before 8pm, then showers likely and possibly a thunderstorm between 8pm and 2am, then showers after 2am. Low around 62. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers, with thunderstorms also possible after 2pm. High near 82. Chance of precipitation is 80%.
Sunday Night
A chance of thunderstorms before 8pm. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Monday
Sunny and hot, with a high near 90.
Monday Night
Mostly clear, with a low around 66.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Wednesday
Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 83. Chance of precipitation is 60%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Belle Vernon PA
 40.14°N 79.85°W (Elev. 899 ft)
Last Update:
7:01 am EDT May 14, 2026
Forecast Valid:
12pm EDT May 14, 2026-6pm EDT May 20, 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