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

38°F

3°C

Humidity 76%
Wind Speed Calm
Barometer 30.22 in (1024.5 mb)
Dewpoint 31°F (-1°C)
Visibility 10.00 mi
Last update 14 Nov 8:56 am EST
Extended Forecast for

Canonsburg PA

  • Today

    Today: Partly sunny, with a high near 54. Southwest wind 5 to 8 mph.

    High: 54 °F

    Partly Sunny

  • Tonight

    Tonight: A slight chance of rain after 1am. Mostly cloudy, with a low around 41. Southwest wind around 6 mph becoming calm. Chance of precipitation is 20%.

    Low: 41 °F

    Mostly Cloudy
    then Slight
    Chance Rain

  • Saturday

    Saturday: Rain, with thunderstorms also possible after 4pm. High near 62. Southwest wind 6 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Rain

  • Saturday Night

    Saturday Night: Rain and possibly a thunderstorm before 1am, then a chance of rain. Low around 41. West wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 41 °F

    Rain

  • Sunday

    Sunday: Mostly sunny, with a high near 49. West wind 14 to 18 mph, with gusts as high as 32 mph.

    High: 49 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 30.

    Low: 30 °F

    Partly Cloudy

  • Monday

    Monday: Sunny, with a high near 45.

    High: 45 °F

    Sunny

  • Monday Night

    Monday Night: A chance of snow after 1am. Partly cloudy, with a low around 27. Chance of precipitation is 30%.

    Low: 27 °F

    Partly Cloudy
    then Chance
    Snow

  • Tuesday

    Tuesday: A chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 50%.

    High: 44 °F

    Chance Rain

Detailed Forecast

Today
Partly sunny, with a high near 54. Southwest wind 5 to 8 mph.
Tonight
A slight chance of rain after 1am. Mostly cloudy, with a low around 41. Southwest wind around 6 mph becoming calm. Chance of precipitation is 20%.
Saturday
Rain, with thunderstorms also possible after 4pm. High near 62. Southwest wind 6 to 15 mph, with gusts as high as 26 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Rain and possibly a thunderstorm before 1am, then a chance of rain. Low around 41. West wind 14 to 16 mph, with gusts as high as 29 mph. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Mostly sunny, with a high near 49. West wind 14 to 18 mph, with gusts as high as 32 mph.
Sunday Night
Partly cloudy, with a low around 30.
Monday
Sunny, with a high near 45.
Monday Night
A chance of snow after 1am. Partly cloudy, with a low around 27. Chance of precipitation is 30%.
Tuesday
A chance of rain. Mostly cloudy, with a high near 44. Chance of precipitation is 50%.
Tuesday Night
A chance of rain before 1am. Partly cloudy, with a low around 27. Chance of precipitation is 30%.
Wednesday
Partly sunny, with a high near 47.
Wednesday Night
Mostly cloudy, with a low around 29.
Thursday
A chance of rain. Mostly cloudy, with a high near 50. Chance of precipitation is 40%.
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ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.25°N 80.18°W (Elev. 997 ft)
Last Update:
6:33 am EST Nov 14, 2025
Forecast Valid:
9am EST Nov 14, 2025-6pm EST Nov 20, 2025
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation