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

45°F

7°C

Humidity 66%
Wind Speed S 7 mph
Barometer 30.09 in (1019.7 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Wind Chill41°F (5°C)
Last update 27 Feb 10:56 am EST
Extended Forecast for

Canonsburg PA

  • Today

    Today: Sunny, with a high near 54. Southwest wind around 7 mph.

    High: 54 °F

    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 39. South wind 6 to 9 mph.

    Low: 39 °F

    Increasing
    Clouds

  • Saturday

    Saturday: Partly sunny, then gradually becoming sunny, with a high near 58. Southwest wind 6 to 8 mph becoming northwest in the afternoon.

    High: 58 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: A chance of rain and snow between 1am and 4am, then a chance of snow after 4am. Increasing clouds, with a low around 32. North wind around 6 mph becoming east in the evening. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Mostly Clear
    then Chance
    Rain/Snow

  • Sunday

    Sunday: Partly sunny, with a high near 40. North wind 8 to 11 mph.

    High: 40 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 20.

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: A chance of snow before 1pm, then a chance of rain and snow. Partly sunny, with a high near 38. Chance of precipitation is 30%.

    High: 38 °F

    Chance Snow
    then Chance
    Rain/Snow

  • Monday Night

    Monday Night: A chance of snow after 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.

    Low: 28 °F

    Mostly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: Rain likely. Mostly cloudy, with a high near 49. Chance of precipitation is 70%.

    High: 49 °F

    Rain Likely

Detailed Forecast

Today
Sunny, with a high near 54. Southwest wind around 7 mph.
Tonight
Increasing clouds, with a low around 39. South wind 6 to 9 mph.
Saturday
Partly sunny, then gradually becoming sunny, with a high near 58. Southwest wind 6 to 8 mph becoming northwest in the afternoon.
Saturday Night
A chance of rain and snow between 1am and 4am, then a chance of snow after 4am. Increasing clouds, with a low around 32. North wind around 6 mph becoming east in the evening. Chance of precipitation is 30%. New snow accumulation of less than a half inch possible.
Sunday
Partly sunny, with a high near 40. North wind 8 to 11 mph.
Sunday Night
Mostly cloudy, with a low around 20.
Monday
A chance of snow before 1pm, then a chance of rain and snow. Partly sunny, with a high near 38. Chance of precipitation is 30%.
Monday Night
A chance of snow after 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Tuesday
Rain likely. Mostly cloudy, with a high near 49. Chance of precipitation is 70%.
Tuesday Night
Rain. Low around 40. Chance of precipitation is 80%.
Wednesday
A chance of rain. Mostly cloudy, with a high near 57. Chance of precipitation is 40%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 46. Chance of precipitation is 50%.
Thursday
Rain likely. Mostly cloudy, with a high near 65. Chance of precipitation is 60%.
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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:
10:56 am EST Feb 27, 2026
Forecast Valid:
11am EST Feb 27, 2026-6pm EST Mar 5, 2026
 
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Additional Resources

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation