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 30.12 in
Dewpoint N/A
Visibility 10.00 mi
Last update 5 Jan 2:56 am EST
Extended Forecast for

Canonsburg PA

  • Overnight

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

    Low: 20 °F

    Mostly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 44. Calm wind becoming southwest 5 to 8 mph in the morning.

    High: 44 °F

    Partly Sunny

  • Monday Night

    Monday Night: Mostly cloudy, with a low around 33. Southwest wind 3 to 6 mph.

    Low: 33 °F

    Mostly Cloudy

  • Tuesday

    Tuesday: Rain, mainly after 1pm. High near 51. South wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.

    High: 51 °F

    Slight Chance
    Rain then
    Rain

  • Tuesday Night

    Tuesday Night: Rain likely, mainly before 1am. Cloudy, with a low around 38. West wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 38 °F

    Rain Likely

  • Wednesday

    Wednesday: Mostly cloudy, with a high near 46.

    High: 46 °F

    Mostly Cloudy

  • Wednesday Night

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

    Low: 34 °F

    Partly Cloudy

  • Thursday

    Thursday: A chance of rain after 1pm. Partly sunny, with a high near 55. Chance of precipitation is 30%.

    High: 55 °F

    Mostly Sunny
    then Chance
    Rain

  • Thursday Night

    Thursday Night: Rain likely. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.

    Low: 45 °F

    Rain Likely

Detailed Forecast

Overnight
Mostly cloudy, with a low around 20. Calm wind.
Monday
Partly sunny, with a high near 44. Calm wind becoming southwest 5 to 8 mph in the morning.
Monday Night
Mostly cloudy, with a low around 33. Southwest wind 3 to 6 mph.
Tuesday
Rain, mainly after 1pm. High near 51. South wind 6 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 80%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night
Rain likely, mainly before 1am. Cloudy, with a low around 38. West wind 7 to 11 mph, with gusts as high as 23 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Wednesday
Mostly cloudy, with a high near 46.
Wednesday Night
Partly cloudy, with a low around 34.
Thursday
A chance of rain after 1pm. Partly sunny, with a high near 55. Chance of precipitation is 30%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 45. Chance of precipitation is 70%.
Friday
Rain. High near 60. Chance of precipitation is 80%.
Friday Night
Rain. Low around 44. Chance of precipitation is 80%.
Saturday
Rain likely. Mostly cloudy, with a high near 54. Chance of precipitation is 60%.
Saturday Night
A chance of rain and snow. Mostly cloudy, with a low around 28. Chance of precipitation is 40%.
Sunday
A chance of snow. Partly sunny, with a high near 35. Chance of precipitation is 30%.
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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 am EST Jan 5, 2026
Forecast Valid:
3am EST Jan 5, 2026-6pm EST Jan 11, 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