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

Hazardous Weather Conditions

Current conditions at

Washington County Airport (KAFJ)

Lat: 40.14°NLon: 80.29°WElev: 1184ft.

Overcast

72°F

22°C

Humidity 97%
Wind Speed Calm
Barometer 30.13 in (1019.6 mb)
Dewpoint 71°F (22°C)
Visibility 9.00 mi
Last update 14 Aug 4:56 pm EDT
Extended Forecast for

Canonsburg PA

  • This Afternoon

    This Afternoon: A slight chance of showers. Partly sunny, with a high near 80. Light northeast wind. Chance of precipitation is 20%.

    High: 80 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Patchy fog after 4am. Otherwise, partly cloudy, with a low around 64. Calm wind.

    Low: 64 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, mostly sunny, with a high near 85. Light northeast wind.

    High: 85 °F

    Patchy Fog
    then Mostly
    Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms between 10pm and 5am, then showers and possibly a thunderstorm after 5am. Low around 69. Light southeast wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Chance
    Showers then
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 85. West wind 7 to 14 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 85 °F

    Showers

  • Sunday Night

    Sunday Night: Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 69. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 69 °F

    Showers

  • Monday

    Monday: Partly sunny, with a high near 80.

    High: 80 °F

    Partly Sunny

  • Monday Night

    Monday Night: Patchy fog after 3am. Otherwise, partly cloudy, with a low around 59.

    Low: 59 °F

    Partly Cloudy
    then Patchy
    Fog

  • Tuesday

    Tuesday: Patchy fog before 9am. Otherwise, sunny, with a high near 81.

    High: 81 °F

    Patchy Fog
    then Sunny

Detailed Forecast

This Afternoon
A slight chance of showers. Partly sunny, with a high near 80. Light northeast wind. Chance of precipitation is 20%.
Tonight
Patchy fog after 4am. Otherwise, partly cloudy, with a low around 64. Calm wind.
Saturday
Patchy fog before 9am. Otherwise, mostly sunny, with a high near 85. Light northeast wind.
Saturday Night
A chance of showers and thunderstorms between 10pm and 5am, then showers and possibly a thunderstorm after 5am. Low around 69. Light southeast wind. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday
Showers and possibly a thunderstorm. High near 85. West wind 7 to 14 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers and possibly a thunderstorm before 2am, then a slight chance of showers. Low around 69. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday
Partly sunny, with a high near 80.
Monday Night
Patchy fog after 3am. Otherwise, partly cloudy, with a low around 59.
Tuesday
Patchy fog before 9am. Otherwise, sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 60.
Wednesday
Mostly sunny, with a high near 83.
Wednesday Night
A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 50%.
Thursday
A chance of showers. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Thursday Night
Partly cloudy, with a low around 60.
Friday
Mostly sunny, with a high near 77.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.27°N 80.18°W (Elev. 1030 ft)
Last Update:
2:21 pm EDT Aug 14, 2026
Forecast Valid:
5pm EDT Aug 14, 2026-6pm EDT Aug 21, 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