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.

Overcast

66°F

19°C

Humidity 61%
Wind Speed NW 12 G 22 mph
Barometer 30.12 in (1019.8 mb)
Dewpoint 52°F (11°C)
Visibility 10.00 mi
Last update 28 Aug 5:56 pm EDT
Extended Forecast for

Canonsburg PA

  • Tonight

    Tonight: A chance of showers or sprinkles before 2am, then a chance of sprinkles with a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 55. Southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.

    Low: 55 °F

    Chance
    Showers

  • Friday

    Friday: Partly sunny, with a high near 72. Northwest wind 6 to 10 mph.

    High: 72 °F

    Partly Sunny

  • Friday Night

    Friday Night: Patchy fog after 5am. Otherwise, mostly clear, with a low around 46. North wind 5 to 7 mph becoming calm after midnight.

    Low: 46 °F

    Partly Cloudy
    then Patchy
    Fog

  • Saturday

    Saturday: Patchy fog before 9am. Otherwise, sunny, with a high near 73. Calm wind becoming north around 6 mph in the afternoon.

    High: 73 °F

    Patchy Fog
    then Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 49. North wind around 5 mph becoming calm in the evening.

    Low: 49 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 76.

    High: 76 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 53.

    Low: 53 °F

    Mostly Clear

  • Labor Day

    Labor Day: Sunny, with a high near 79.

    High: 79 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 55.

    Low: 55 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers or sprinkles before 2am, then a chance of sprinkles with a slight chance of showers between 2am and 3am. Mostly cloudy, with a low around 55. Southwest wind 6 to 10 mph, with gusts as high as 20 mph. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 72. Northwest wind 6 to 10 mph.
Friday Night
Patchy fog after 5am. Otherwise, mostly clear, with a low around 46. North wind 5 to 7 mph becoming calm after midnight.
Saturday
Patchy fog before 9am. Otherwise, sunny, with a high near 73. Calm wind becoming north around 6 mph in the afternoon.
Saturday Night
Mostly clear, with a low around 49. North wind around 5 mph becoming calm in the evening.
Sunday
Sunny, with a high near 76.
Sunday Night
Mostly clear, with a low around 53.
Labor Day
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 55.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
Partly cloudy, with a low around 57.
Wednesday
Mostly sunny, with a high near 78.
Wednesday Night
A chance of showers. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
Thursday
A chance of showers. Partly sunny, with a high near 76. Chance of precipitation is 50%.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.25°N 80.18°W (Elev. 997 ft)
Last Update:
4:27 pm EDT Aug 28, 2025
Forecast Valid:
6pm EDT Aug 28, 2025-6pm EDT Sep 4, 2025
 
Forecast Discussion
 
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Additional Resources

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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