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.

Fair

56°F

13°C

Humidity 100%
Wind Speed Calm
Barometer 30.12 in (1019.3 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 26 Aug 4:56 am EDT
Extended Forecast for

Canonsburg PA

  • Today

    Today: Areas of fog before 10am. Otherwise, partly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.

    High: 81 °F

    Areas Fog
    then Partly
    Sunny

  • Tonight

    Tonight: Increasing clouds, with a low around 62. Light south wind.

    Low: 62 °F

    Increasing
    Clouds

  • Thursday

    Thursday: Scattered showers and thunderstorms after 3pm. Increasing clouds, with a high near 82. Light southwest wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Mostly Sunny
    then
    Scattered
    T-storms

  • Thursday Night

    Thursday Night: Scattered showers and thunderstorms before 8pm. Mostly cloudy, with a low around 62. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 62 °F

    Scattered
    T-storms then
    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 80. Calm wind becoming north around 6 mph in the afternoon.

    High: 80 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Mostly clear, with a low around 58.

    Low: 58 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 81.

    High: 81 °F

    Sunny

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 61.

    Low: 61 °F

    Mostly Clear

  • Sunday

    Sunday: Mostly sunny, with a high near 84.

    High: 84 °F

    Mostly Sunny

Detailed Forecast

Today
Areas of fog before 10am. Otherwise, partly sunny, with a high near 81. Calm wind becoming southwest around 6 mph in the afternoon.
Tonight
Increasing clouds, with a low around 62. Light south wind.
Thursday
Scattered showers and thunderstorms after 3pm. Increasing clouds, with a high near 82. Light southwest wind increasing to 5 to 9 mph in the morning. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday Night
Scattered showers and thunderstorms before 8pm. Mostly cloudy, with a low around 62. Light and variable wind. Chance of precipitation is 30%. New precipitation amounts between a quarter and half of an inch possible.
Friday
Mostly sunny, with a high near 80. Calm wind becoming north around 6 mph in the afternoon.
Friday Night
Mostly clear, with a low around 58.
Saturday
Sunny, with a high near 81.
Saturday Night
Mostly clear, with a low around 61.
Sunday
Mostly sunny, with a high near 84.
Sunday Night
Partly cloudy, with a low around 66.
Monday
Mostly sunny, with a high near 86.
Monday Night
A chance of showers. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Tuesday
Partly sunny, with a high near 86.
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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:
5:26 am EDT Aug 26, 2026
Forecast Valid:
5am EDT Aug 26, 2026-6pm EDT Sep 1, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation