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

52°F

11°C

Humidity 61%
Wind Speed S 6 mph
Barometer 30.16 in (1021.7 mb)
Dewpoint 39°F (4°C)
Visibility 10.00 mi
Wind Chill50°F (10°C)
Last update 8 Jan 11:56 am EST
Extended Forecast for

Canonsburg PA

  • This Afternoon

    This Afternoon: Partly sunny, with a high near 54. Southeast wind 3 to 6 mph.

    High: 54 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of rain after 4am. Cloudy, then gradually becoming partly cloudy, with a low around 45. South wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Friday

    Friday: Rain. High near 62. South wind 14 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 62 °F

    Rain

  • Friday Night

    Friday Night: A chance of rain. Cloudy, with a low around 40. West wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 40 °F

    Chance Rain

  • Saturday

    Saturday: Rain. High near 53. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 53 °F

    Rain

  • Saturday Night

    Saturday Night: Rain likely before 1am, then a slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 31. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 31 °F

    Rain Likely
    then
    Rain/Snow
    Likely

  • Sunday

    Sunday: Snow likely, mainly after 1pm. Mostly cloudy, with a high near 35. Chance of precipitation is 60%.

    High: 35 °F

    Snow Likely

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 24.

    Low: 24 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 37.

    High: 37 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Partly sunny, with a high near 54. Southeast wind 3 to 6 mph.
Tonight
A slight chance of rain after 4am. Cloudy, then gradually becoming partly cloudy, with a low around 45. South wind 7 to 11 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Friday
Rain. High near 62. South wind 14 to 16 mph, with gusts as high as 31 mph. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
A chance of rain. Cloudy, with a low around 40. West wind 5 to 9 mph becoming calm after midnight. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Rain. High near 53. Calm wind becoming south 5 to 7 mph in the afternoon. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday Night
Rain likely before 1am, then a slight chance of rain and snow between 1am and 4am, then a slight chance of snow after 4am. Mostly cloudy, with a low around 31. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Sunday
Snow likely, mainly after 1pm. Mostly cloudy, with a high near 35. Chance of precipitation is 60%.
Sunday Night
Mostly cloudy, with a low around 24.
Monday
Partly sunny, with a high near 37.
Monday Night
Partly cloudy, with a low around 28.
Tuesday
Mostly sunny, with a high near 44.
Tuesday Night
Mostly cloudy, with a low around 32.
Wednesday
Rain likely. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.25°N 80.18°W (Elev. 997 ft)
Last Update:
12:18 pm EST Jan 8, 2026
Forecast Valid:
12pm EST Jan 8, 2026-6pm EST Jan 14, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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