National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Washington County Airport (KAFJ)

Lat: 40.14°NLon: 80.29°WElev: 1184ft.

N/A

Humidity NA
Wind Speed NA
Barometer NA
Dewpoint N/A
Visibility NA
Last update *** Not a current observation ***
Extended Forecast for

Canonsburg PA

  • Overnight

    Overnight: A chance of showers and thunderstorms, mainly between 3am and 5am. Mostly cloudy, with a low around 68. Southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 68 °F

    Chance
    T-storms

  • Monday

    Monday: Showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. High near 84. Southwest wind 8 to 13 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 84 °F

    Chance
    T-storms then
    Showers

  • Monday Night

    Monday Night: Showers and thunderstorms likely before 4am, then a chance of showers. Mostly cloudy, with a low around 66. West wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

    Low: 66 °F

    Showers
    Likely then
    Chance
    T-storms

  • Tuesday

    Tuesday: Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 81. West wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Showers

  • Tuesday Night

    Tuesday Night: Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 64. Southwest wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 64 °F

    Showers

  • Wednesday

    Wednesday: A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.

    High: 81 °F

    Chance
    T-storms then
    Showers
    Likely

  • Wednesday Night

    Wednesday Night: Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.

    Low: 65 °F

    Showers
    Likely

  • Thursday

    Thursday: A chance of showers before 8am, then a chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.

    High: 80 °F

    Chance
    Showers

  • Thursday Night

    Thursday Night: A chance of showers before 8pm. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.

    Low: 60 °F

    Chance
    Showers then
    Mostly Cloudy

Detailed Forecast

Overnight
A chance of showers and thunderstorms, mainly between 3am and 5am. Mostly cloudy, with a low around 68. Southwest wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday
Showers and thunderstorms before 4pm, then a slight chance of showers and thunderstorms after 5pm. High near 84. Southwest wind 8 to 13 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Monday Night
Showers and thunderstorms likely before 4am, then a chance of showers. Mostly cloudy, with a low around 66. West wind 5 to 7 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday
Showers and thunderstorms likely, then showers and possibly a thunderstorm after noon. High near 81. West wind 6 to 9 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
Tuesday Night
Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 64. Southwest wind 3 to 5 mph. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Wednesday
A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 81. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible.
Wednesday Night
Showers likely and possibly a thunderstorm before 2am, then a chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 70%.
Thursday
A chance of showers before 8am, then a chance of showers after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Thursday Night
A chance of showers before 8pm. Mostly cloudy, with a low around 60. Chance of precipitation is 30%.
Friday
Partly sunny, with a high near 78.
Friday Night
Partly cloudy, with a low around 57.
Saturday
Mostly sunny, with a high near 77.
Saturday Night
Partly cloudy, with a low around 60.
Sunday
A chance of showers. Mostly sunny, with a high near 80. Chance of precipitation is 30%.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.27°N 80.18°W (Elev. 1030 ft)
Last Update:
12:11 am EDT Aug 10, 2026
Forecast Valid:
1am EDT Aug 10, 2026-6pm EDT Aug 16, 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