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

Washington County Airport (KAFJ)

Lat: 40.14°NLon: 80.29°WElev: 1184ft.

Fair

60°F

16°C

Humidity 86%
Wind Speed Calm
Barometer 29.96 in (1014.1 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 30 Jul 1:56 am EDT
Extended Forecast for

Canonsburg PA

  • Overnight

    Overnight: Clear, with a low around 56. Northwest wind 3 to 5 mph.

    Low: 56 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 81. North wind 5 to 9 mph.

    High: 81 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 57. Northwest wind 5 to 7 mph becoming calm in the evening.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Increasing clouds, with a high near 85. Calm wind.

    High: 85 °F

    Increasing
    Clouds

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy, with a high near 84.

    High: 84 °F

    Mostly Cloudy

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.

    Low: 65 °F

    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 2pm. High near 79. Chance of precipitation is 80%.

    High: 79 °F

    Showers

  • Sunday Night

    Sunday Night: A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Overnight
Clear, with a low around 56. Northwest wind 3 to 5 mph.
Thursday
Sunny, with a high near 81. North wind 5 to 9 mph.
Thursday Night
Mostly clear, with a low around 57. Northwest wind 5 to 7 mph becoming calm in the evening.
Friday
Increasing clouds, with a high near 85. Calm wind.
Friday Night
Mostly cloudy, with a low around 64. Calm wind.
Saturday
Mostly cloudy, with a high near 84.
Saturday Night
Showers and possibly a thunderstorm. Low around 65. Chance of precipitation is 80%.
Sunday
Showers, with thunderstorms also possible after 2pm. High near 79. Chance of precipitation is 80%.
Sunday Night
A chance of thunderstorms before 8pm. Mostly cloudy, with a low around 63. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 82.
Monday Night
Mostly clear, with a low around 63.
Tuesday
Sunny, with a high near 85.
Tuesday Night
Partly cloudy, with a low around 66.
Wednesday
A chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.25°N 80.18°W (Elev. 997 ft)
Last Update:
2:21 am EDT Jul 30, 2026
Forecast Valid:
2am EDT Jul 30, 2026-6pm EDT Aug 5, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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