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.

A Few Clouds

42°F

6°C

Humidity 45%
Wind Speed W 13 G 21 mph
Barometer 30.03 in (1017.5 mb)
Dewpoint 22°F (-6°C)
Visibility 10.00 mi
Wind Chill35°F (2°C)
Last update 17 Nov 12:56 pm EST
Extended Forecast for

Canonsburg PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 44. West wind 11 to 14 mph, with gusts as high as 24 mph.

    High: 44 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 27. West wind around 6 mph becoming calm in the evening.

    Low: 27 °F

    Mostly Clear

  • Tuesday

    Tuesday: A chance of rain and snow before noon, then rain. High near 40. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Chance
    Rain/Snow
    then Rain

  • Tuesday Night

    Tuesday Night: Rain before 4am, then a slight chance of rain and snow. Low around 33. Light and variable wind. Chance of precipitation is 80%. Little or no snow accumulation expected.

    Low: 33 °F

    Rain then
    Rain/Snow

  • Wednesday

    Wednesday: Partly sunny, with a high near 50. Light northeast wind.

    High: 50 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Mostly cloudy, with a low around 37.

    Low: 37 °F

    Mostly Cloudy

  • Thursday

    Thursday: Cloudy, with a high near 54.

    High: 54 °F

    Cloudy

  • Thursday Night

    Thursday Night: Rain likely, mainly after 1am. Cloudy, with a low around 44. Chance of precipitation is 70%.

    Low: 44 °F

    Chance Rain
    then Rain
    Likely

  • Friday

    Friday: Rain likely before 10am, then showers likely after 10am. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.

    High: 59 °F

    Rain Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 44. West wind 11 to 14 mph, with gusts as high as 24 mph.
Tonight
Mostly clear, with a low around 27. West wind around 6 mph becoming calm in the evening.
Tuesday
A chance of rain and snow before noon, then rain. High near 40. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Tuesday Night
Rain before 4am, then a slight chance of rain and snow. Low around 33. Light and variable wind. Chance of precipitation is 80%. Little or no snow accumulation expected.
Wednesday
Partly sunny, with a high near 50. Light northeast wind.
Wednesday Night
Mostly cloudy, with a low around 37.
Thursday
Cloudy, with a high near 54.
Thursday Night
Rain likely, mainly after 1am. Cloudy, with a low around 44. Chance of precipitation is 70%.
Friday
Rain likely before 10am, then showers likely after 10am. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.
Friday Night
Showers likely before 1am, then rain likely after 1am. Mostly cloudy, with a low around 39. Chance of precipitation is 70%.
Saturday
A chance of showers. Partly sunny, with a high near 50. Chance of precipitation is 40%.
Saturday Night
Partly cloudy, with a low around 33.
Sunday
Mostly sunny, with a high near 52.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.25°N 80.16°W (Elev. 1106 ft)
Last Update:
12:31 pm EST Nov 17, 2025
Forecast Valid:
1pm EST Nov 17, 2025-6pm EST Nov 23, 2025
 
Forecast Discussion
 
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Additional Resources

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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