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

33°F

1°C

Humidity 45%
Wind Speed N 3 mph
Barometer 29.96 in (1015.3 mb)
Dewpoint 14°F (-10°C)
Visibility 10.00 mi
Last update 26 Feb 10:56 am EST
Extended Forecast for

Canonsburg PA

  • Today

    Today: Mostly sunny, with a high near 42. Calm wind becoming northwest around 5 mph in the afternoon.

    High: 42 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 24. Calm wind.

    Low: 24 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 54. Light southwest wind increasing to 5 to 9 mph in the morning.

    High: 54 °F

    Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 35. South wind 6 to 8 mph.

    Low: 35 °F

    Mostly Clear

  • Saturday

    Saturday: Partly sunny, with a high near 56. West wind around 7 mph.

    High: 56 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: A slight chance of rain before 10pm, then a slight chance of rain and snow between 10pm and 1am, then a chance of snow after 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 28 °F

    Slight Chance
    Rain/Snow
    then Chance
    Rain/Snow

  • Sunday

    Sunday: Mostly sunny, with a high near 37.

    High: 37 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A chance of snow after 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 50%.

    Low: 22 °F

    Mostly Cloudy
    then Chance
    Snow

  • Monday

    Monday: A chance of snow before 1pm. Mostly cloudy, with a high near 35. Chance of precipitation is 40%.

    High: 35 °F

    Chance Snow

Detailed Forecast

Today
Mostly sunny, with a high near 42. Calm wind becoming northwest around 5 mph in the afternoon.
Tonight
Mostly clear, with a low around 24. Calm wind.
Friday
Sunny, with a high near 54. Light southwest wind increasing to 5 to 9 mph in the morning.
Friday Night
Mostly clear, with a low around 35. South wind 6 to 8 mph.
Saturday
Partly sunny, with a high near 56. West wind around 7 mph.
Saturday Night
A slight chance of rain before 10pm, then a slight chance of rain and snow between 10pm and 1am, then a chance of snow after 1am. Mostly cloudy, with a low around 28. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Mostly sunny, with a high near 37.
Sunday Night
A chance of snow after 1am. Mostly cloudy, with a low around 22. Chance of precipitation is 50%.
Monday
A chance of snow before 1pm. Mostly cloudy, with a high near 35. Chance of precipitation is 40%.
Monday Night
A chance of rain after 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 30%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 40%.
Tuesday Night
A chance of rain. Mostly cloudy, with a low around 31. Chance of precipitation is 50%.
Wednesday
A chance of rain. Partly sunny, with a high near 48. Chance of precipitation is 30%.
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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:
10:22 am EST Feb 26, 2026
Forecast Valid:
11am EST Feb 26, 2026-6pm EST Mar 4, 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