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.

Mostly Cloudy

75°F

24°C

Humidity 79%
Wind Speed S 6 mph
Barometer 30.02 in (1015.9 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 27 Aug 10:56 am EDT
Extended Forecast for

Canonsburg PA

  • Today

    Today: Scattered showers and thunderstorms, mainly between 2pm and 3pm. Mostly sunny, with a high near 81. West wind around 8 mph. Chance of precipitation is 40%.

    High: 81 °F

    Scattered
    T-storms

  • Tonight

    Tonight: Patchy fog after 1am. Otherwise, partly cloudy, with a low around 62. Calm wind.

    Low: 62 °F

    Partly Cloudy
    then Patchy
    Fog

  • Friday

    Friday: Areas of fog before 10am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming north around 5 mph in the afternoon.

    High: 81 °F

    Areas Fog
    then Mostly
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 59. North wind around 5 mph becoming calm after midnight.

    Low: 59 °F

    Partly Cloudy

  • Saturday

    Saturday: Patchy fog before 8am. Otherwise, sunny, with a high near 82. Light north wind.

    High: 82 °F

    Patchy Fog
    then 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

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 67.

    Low: 67 °F

    Partly Cloudy

  • Monday

    Monday: Partly sunny, with a high near 86.

    High: 86 °F

    Partly Sunny

Detailed Forecast

Today
Scattered showers and thunderstorms, mainly between 2pm and 3pm. Mostly sunny, with a high near 81. West wind around 8 mph. Chance of precipitation is 40%.
Tonight
Patchy fog after 1am. Otherwise, partly cloudy, with a low around 62. Calm wind.
Friday
Areas of fog before 10am. Otherwise, mostly sunny, with a high near 81. Calm wind becoming north around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 59. North wind around 5 mph becoming calm after midnight.
Saturday
Patchy fog before 8am. Otherwise, sunny, with a high near 82. Light north wind.
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 67.
Monday
Partly sunny, with a high near 86.
Monday Night
Mostly cloudy, with a low around 70.
Tuesday
Mostly sunny, with a high near 88.
Tuesday Night
A chance of showers. Mostly cloudy, with a low around 70. Chance of precipitation is 30%.
Wednesday
A chance of showers. Partly sunny, with a high near 86. Chance of precipitation is 50%.
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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:
10:13 am EDT Aug 27, 2026
Forecast Valid:
11am EDT Aug 27, 2026-6pm EDT Sep 2, 2026
 
Forecast Discussion
 
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Additional Resources

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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