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

20°F

-7°C

Humidity 55%
Wind Speed NE 6 mph
Barometer 30.27 in (1027.0 mb)
Dewpoint 6°F (-14°C)
Visibility 10.00 mi
Wind Chill12°F (-11°C)
Last update 8 Dec 7:56 pm EST
Extended Forecast for

Canonsburg PA

  • Tonight

    Tonight: Partly cloudy, with a low around 15. Northeast wind around 5 mph becoming calm in the evening.

    Low: 15 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 36. South wind 6 to 15 mph, with gusts as high as 25 mph.

    High: 36 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain after 1am, mixing with snow after 4am. Mostly cloudy, with a low around 31. Southwest wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Wednesday

    Wednesday: Rain, possibly mixed with snow, becoming all rain after 10am. High near 42. Southwest wind 16 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.

    High: 42 °F

    Rain/Snow
    then Rain

  • Wednesday Night

    Wednesday Night: Snow, possibly mixed with rain, becoming all snow after 10pm. Low around 26. West wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.

    Low: 26 °F

    Rain/Snow
    then Snow

  • Thursday

    Thursday: A chance of snow. Cloudy, with a high near 30. Chance of precipitation is 40%.

    High: 30 °F

    Chance Snow

  • Thursday Night

    Thursday Night: A chance of snow. Mostly cloudy, with a low around 20. Chance of precipitation is 40%.

    Low: 20 °F

    Chance Snow

  • Friday

    Friday: Snow likely, mainly after 1pm. Mostly cloudy, with a high near 31. Chance of precipitation is 60%.

    High: 31 °F

    Snow Likely

  • Friday Night

    Friday Night: Snow likely, mainly before 1am. Mostly cloudy, with a low around 17. Chance of precipitation is 70%.

    Low: 17 °F

    Snow Likely

Detailed Forecast

Tonight
Partly cloudy, with a low around 15. Northeast wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 36. South wind 6 to 15 mph, with gusts as high as 25 mph.
Tuesday Night
A chance of rain after 1am, mixing with snow after 4am. Mostly cloudy, with a low around 31. Southwest wind 11 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Wednesday
Rain, possibly mixed with snow, becoming all rain after 10am. High near 42. Southwest wind 16 to 18 mph, with gusts as high as 32 mph. Chance of precipitation is 100%. New snow accumulation of less than a half inch possible.
Wednesday Night
Snow, possibly mixed with rain, becoming all snow after 10pm. Low around 26. West wind around 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New snow accumulation of less than a half inch possible.
Thursday
A chance of snow. Cloudy, with a high near 30. Chance of precipitation is 40%.
Thursday Night
A chance of snow. Mostly cloudy, with a low around 20. Chance of precipitation is 40%.
Friday
Snow likely, mainly after 1pm. Mostly cloudy, with a high near 31. Chance of precipitation is 60%.
Friday Night
Snow likely, mainly before 1am. Mostly cloudy, with a low around 17. Chance of precipitation is 70%.
Saturday
A chance of snow. Mostly cloudy, with a high near 26. Chance of precipitation is 40%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 14. Chance of precipitation is 30%.
Sunday
Mostly cloudy, with a high near 23.
Sunday Night
Mostly cloudy, with a low around 11.
Monday
Mostly cloudy, with a high near 31.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.25°N 80.18°W (Elev. 997 ft)
Last Update:
12:48 pm EST Dec 8, 2025
Forecast Valid:
8pm EST Dec 8, 2025-6pm EST Dec 15, 2025
 
Forecast Discussion
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation