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

43°F

6°C

Humidity 80%
Wind Speed Calm
Barometer 30.13 in (1021.0 mb)
Dewpoint 37°F (3°C)
Visibility 10.00 mi
Last update 9 Nov 6:56 pm EST
Extended Forecast for

Canonsburg PA

  • Tonight

    Tonight: Partly cloudy, with a low around 37. Calm wind becoming south 5 to 7 mph after midnight.

    Low: 37 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 62. West wind 10 to 15 mph.

    High: 62 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Increasing clouds, with a low around 37. West wind around 5 mph becoming calm in the evening.

    Low: 37 °F

    Increasing
    Clouds

  • Veterans Day

    Veterans Day: Partly sunny, with a high near 61. Calm wind becoming southwest around 5 mph.

    High: 61 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: A chance of rain after 1am. Mostly cloudy, with a low around 43. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 43 °F

    Mostly Cloudy
    then Chance
    Rain

  • Thursday

    Thursday: Rain likely. Mostly cloudy, with a high near 54. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    High: 54 °F

    Rain Likely

  • Thursday Night

    Thursday Night: Rain likely. Cloudy, with a low around 34. Chance of precipitation is 60%.

    Low: 34 °F

    Rain Likely

  • Friday

    Friday: Rain likely before 10am, then rain and snow likely between 10am and 1pm, then a chance of rain after 1pm. Cloudy, with a high near 42. Chance of precipitation is 60%.

    High: 42 °F

    Rain/Snow
    Likely

  • Friday Night

    Friday Night: A chance of rain and snow before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.

    Low: 30 °F

    Chance
    Rain/Snow

Detailed Forecast

Tonight
Partly cloudy, with a low around 37. Calm wind becoming south 5 to 7 mph after midnight.
Tuesday
Sunny, with a high near 62. West wind 10 to 15 mph.
Tuesday Night
Increasing clouds, with a low around 37. West wind around 5 mph becoming calm in the evening.
Veterans Day
Partly sunny, with a high near 61. Calm wind becoming southwest around 5 mph.
Wednesday Night
A chance of rain after 1am. Mostly cloudy, with a low around 43. Calm wind becoming southeast around 5 mph after midnight. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
Rain likely. Mostly cloudy, with a high near 54. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Thursday Night
Rain likely. Cloudy, with a low around 34. Chance of precipitation is 60%.
Friday
Rain likely before 10am, then rain and snow likely between 10am and 1pm, then a chance of rain after 1pm. Cloudy, with a high near 42. Chance of precipitation is 60%.
Friday Night
A chance of rain and snow before 1am. Mostly cloudy, with a low around 30. Chance of precipitation is 30%.
Saturday
Mostly cloudy, with a high near 43.
Saturday Night
Mostly cloudy, with a low around 30.
Sunday
Partly sunny, with a high near 46.
Sunday Night
Mostly cloudy, with a low around 31.
Monday
Mostly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.27°N 80.15°W (Elev. 1168 ft)
Last Update:
5:51 pm EST Nov 9, 2026
Forecast Valid:
7pm EST Nov 9, 2026-6pm EST Nov 16, 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