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 SW 5 mph
Barometer 29.81 in
Dewpoint N/A
Visibility 10.00 mi
Last update 7 Jan 5:56 am EST
Extended Forecast for

Canonsburg PA

  • Today

    Today: A slight chance of rain before 9am. Mostly cloudy, with a high near 46. West wind 7 to 10 mph. Chance of precipitation is 20%.

    High: 46 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Tonight

    Tonight: Patchy fog between midnight and 4am. Otherwise, mostly cloudy, with a low around 34. Light southwest wind.

    Low: 34 °F

    Mostly Cloudy
    then Patchy
    Fog

  • Thursday

    Thursday: Partly sunny, with a high near 55. Calm wind becoming south around 6 mph in the morning.

    High: 55 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: A chance of rain after 1am. Mostly cloudy, with a low around 46. South wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 46 °F

    Mostly Cloudy
    then Chance
    Rain

  • Friday

    Friday: Rain. High near 63. Southwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.

    High: 63 °F

    Rain

  • Friday Night

    Friday Night: Rain likely, mainly after 1am. Cloudy, with a low around 49. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 49 °F

    Rain Likely

  • Saturday

    Saturday: Rain. High near 60. Chance of precipitation is 90%.

    High: 60 °F

    Rain

  • Saturday Night

    Saturday Night: A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.

    Low: 32 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Sunday

    Sunday: A chance of snow. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.

    High: 37 °F

    Chance Snow

Detailed Forecast

Today
A slight chance of rain before 9am. Mostly cloudy, with a high near 46. West wind 7 to 10 mph. Chance of precipitation is 20%.
Tonight
Patchy fog between midnight and 4am. Otherwise, mostly cloudy, with a low around 34. Light southwest wind.
Thursday
Partly sunny, with a high near 55. Calm wind becoming south around 6 mph in the morning.
Thursday Night
A chance of rain after 1am. Mostly cloudy, with a low around 46. South wind 6 to 10 mph, with gusts as high as 23 mph. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Rain. High near 63. Southwest wind 10 to 14 mph, with gusts as high as 25 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible.
Friday Night
Rain likely, mainly after 1am. Cloudy, with a low around 49. Chance of precipitation is 70%. New precipitation amounts between a tenth and quarter of an inch possible.
Saturday
Rain. High near 60. Chance of precipitation is 90%.
Saturday Night
A chance of rain before 1am, then a chance of rain and snow. Mostly cloudy, with a low around 32. Chance of precipitation is 50%.
Sunday
A chance of snow. Mostly cloudy, with a high near 37. Chance of precipitation is 40%.
Sunday Night
A chance of snow before 1am. Mostly cloudy, with a low around 23. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 36.
Monday Night
Partly cloudy, with a low around 26.
Tuesday
Partly sunny, with a high near 41.
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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:
6:03 am EST Jan 7, 2026
Forecast Valid:
6am EST Jan 7, 2026-6pm EST Jan 13, 2026
 
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