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

47°F

8°C

Humidity 61%
Wind Speed Calm
Barometer 30.10 in (1020.0 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 8 Jan 6:56 pm EST
Extended Forecast for

Canonsburg PA

  • Tonight

    Tonight: A slight chance of rain between 10pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 48. South wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.

    Low: 48 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Friday

    Friday: Rain, mainly after 9am. 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 showers likely before 1am, then a slight chance of rain and snow showers between 1am and 4am, then a slight chance of snow showers after 4am. Mostly cloudy, with a low around 31. West wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 31 °F

    Showers
    Likely then
    Rain/Snow
    Likely

  • Sunday

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

    High: 35 °F

    Snow Showers
    Likely and
    Breezy

  • 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

  • Monday Night

    Monday Night: Partly cloudy, with a low around 28.

    Low: 28 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of rain between 10pm and 11pm. Cloudy, then gradually becoming partly cloudy, with a low around 48. South wind 5 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
Friday
Rain, mainly after 9am. 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 showers likely before 1am, then a slight chance of rain and snow showers between 1am and 4am, then a slight chance of snow showers after 4am. Mostly cloudy, with a low around 31. West wind 8 to 10 mph, with gusts as high as 21 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Sunday
Snow showers likely, mainly after 1pm. Mostly cloudy, with a high near 35. Breezy. 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
Showers likely. Mostly cloudy, with a high near 41. Chance of precipitation is 60%.
Wednesday Night
Rain and snow showers likely. Mostly cloudy, with a low around 24. Chance of precipitation is 60%.
Thursday
A chance of snow showers. Mostly cloudy, with a high near 31. 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:
7:21 pm EST Jan 8, 2026
Forecast Valid:
7pm EST Jan 8, 2026-6pm EST Jan 15, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation