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

N/A

Humidity NA
Wind Speed Calm
Barometer 30.01 in
Dewpoint N/A
Visibility 10.00 mi
Last update 3 Jan 10:56 pm EST
Extended Forecast for

Canonsburg PA

  • Tonight

    Tonight: Scattered flurries between 1am and 2am. Mostly cloudy, with a low around 18. Calm wind.

    Low: 18 °F

    Scattered
    Flurries

  • Sunday

    Sunday: Partly sunny, with a high near 31. Calm wind becoming west 5 to 7 mph in the morning.

    High: 31 °F

    Partly Sunny

  • Sunday Night

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

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 42. Calm wind becoming south 5 to 7 mph in the morning.

    High: 42 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 30. Southwest wind 3 to 5 mph.

    Low: 30 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: A chance of rain after 1pm. Mostly cloudy, with a high near 48. Chance of precipitation is 40%.

    High: 48 °F

    Mostly Cloudy
    then Chance
    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 1am. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.

    Low: 41 °F

    Rain Likely

  • Wednesday

    Wednesday: A chance of rain before 1pm. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.

    High: 51 °F

    Chance Rain

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 34.

    Low: 34 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Scattered flurries between 1am and 2am. Mostly cloudy, with a low around 18. Calm wind.
Sunday
Partly sunny, with a high near 31. Calm wind becoming west 5 to 7 mph in the morning.
Sunday Night
Mostly cloudy, with a low around 20. Calm wind.
Monday
Partly sunny, with a high near 42. Calm wind becoming south 5 to 7 mph in the morning.
Monday Night
Mostly cloudy, with a low around 30. Southwest wind 3 to 5 mph.
Tuesday
A chance of rain after 1pm. Mostly cloudy, with a high near 48. Chance of precipitation is 40%.
Tuesday Night
Rain likely, mainly before 1am. Mostly cloudy, with a low around 41. Chance of precipitation is 60%.
Wednesday
A chance of rain before 1pm. Mostly cloudy, with a high near 51. Chance of precipitation is 30%.
Wednesday Night
Mostly cloudy, with a low around 34.
Thursday
A chance of rain after 1pm. Mostly cloudy, with a high near 53. Chance of precipitation is 30%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 44. Chance of precipitation is 60%.
Friday
Rain likely. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.
Friday Night
A chance of rain. Mostly cloudy, with a low around 43. Chance of precipitation is 50%.
Saturday
A chance of rain. Partly sunny, with a high near 53. 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:
9:23 pm EST Jan 3, 2026
Forecast Valid:
11pm EST Jan 3, 2026-6pm EST Jan 10, 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