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.

Fog/Mist

72°F

22°C

Humidity 100%
Wind Speed NA
Barometer 29.90 in (1011.9 mb)
Dewpoint 72°F (22°C)
Visibility 2.00 mi
Last update 17 Aug 4:53 am EDT
Extended Forecast for

Belle Vernon PA

  • Overnight

    Overnight: A slight chance of showers. Mostly cloudy, with a low around 70. West wind around 5 mph. Chance of precipitation is 20%.

    Low: 70 °F

    Slight Chance
    Showers

  • Monday

    Monday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 81. West wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 81 °F

    Slight Chance
    T-storms then
    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms likely, mainly before 8pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Showers
    Likely then
    Patchy Fog

  • Tuesday

    Tuesday: Areas of fog before 9am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming northwest around 6 mph in the afternoon.

    High: 81 °F

    Areas Fog
    then Mostly
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 60. Calm wind.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.

    High: 81 °F

    Mostly Sunny
    then Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.

    Low: 63 °F

    Chance
    T-storms then
    Showers
    Likely

  • Thursday

    Thursday: Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.

    High: 79 °F

    Showers
    Likely then
    Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.

    Low: 59 °F

    Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Overnight
A slight chance of showers. Mostly cloudy, with a low around 70. West wind around 5 mph. Chance of precipitation is 20%.
Monday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after 4pm. High near 81. West wind 5 to 7 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night
Showers and thunderstorms likely, mainly before 8pm. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 62. Calm wind. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday
Areas of fog before 9am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming northwest around 6 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 60. Calm wind.
Wednesday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 81. Chance of precipitation is 30%.
Wednesday Night
A chance of showers and thunderstorms before 11pm, then a chance of showers between 11pm and 2am, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Thursday
Showers likely and possibly a thunderstorm before 8am, then a chance of showers between 8am and 2pm, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Chance of precipitation is 60%.
Thursday Night
A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 59. Chance of precipitation is 30%.
Friday
A chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 30%.
Friday Night
A chance of showers. Partly cloudy, with a low around 61. Chance of precipitation is 30%.
Saturday
A chance of showers. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Saturday Night
A chance of showers. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
Sunday
A chance of showers and thunderstorms. Partly sunny, with a high near 79. Chance of precipitation is 40%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Belle Vernon PA
 40.11°N 79.86°W (Elev. 801 ft)
Last Update:
3:51 am EDT Aug 17, 2026
Forecast Valid:
5am EDT Aug 17, 2026-6pm EDT Aug 23, 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