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.

Overcast

69°F

21°C

Humidity 100%
Wind Speed Calm
Barometer 30.01 in (1015.5 mb)
Dewpoint 69°F (21°C)
Visibility 10.00 mi
Last update 27 Jun 11:56 pm EDT
Extended Forecast for

Canonsburg PA

  • Overnight

    Overnight: Scattered showers, mainly before 1am. Widespread fog. Otherwise, mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%.

    Low: 66 °F

    Scattered
    Showers and
    Fog

  • Sunday

    Sunday: Scattered showers and thunderstorms, mainly after 2pm. Widespread fog, mainly before 9am. Otherwise, partly sunny, with a high near 82. Calm wind. Chance of precipitation is 40%.

    High: 82 °F

    Fog then
    Scattered
    T-storms

  • Sunday Night

    Sunday Night: Scattered showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 30%.

    Low: 65 °F

    Scattered
    T-storms then
    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 87. Light and variable wind.

    High: 87 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 70. Calm wind.

    Low: 70 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 92.

    High: 92 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 94.

    High: 94 °F

    Hot

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

Detailed Forecast

Overnight
Scattered showers, mainly before 1am. Widespread fog. Otherwise, mostly cloudy, with a low around 66. Calm wind. Chance of precipitation is 30%.
Sunday
Scattered showers and thunderstorms, mainly after 2pm. Widespread fog, mainly before 9am. Otherwise, partly sunny, with a high near 82. Calm wind. Chance of precipitation is 40%.
Sunday Night
Scattered showers and thunderstorms before 8pm. Partly cloudy, with a low around 65. Calm wind. Chance of precipitation is 30%.
Monday
Mostly sunny, with a high near 87. Light and variable wind.
Monday Night
Mostly clear, with a low around 70. Calm wind.
Tuesday
Sunny and hot, with a high near 92.
Tuesday Night
Mostly clear, with a low around 74.
Wednesday
Sunny and hot, with a high near 94.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Sunny and hot, with a high near 95.
Thursday Night
Mostly clear, with a low around 76.
Friday
A chance of showers and thunderstorms. Mostly sunny and hot, with a high near 94. Chance of precipitation is 40%.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 73. Chance of precipitation is 30%.
Independence Day
Showers likely and possibly a thunderstorm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
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ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.25°N 80.18°W (Elev. 997 ft)
Last Update:
8:21 pm EDT Jun 27, 2026
Forecast Valid:
12am EDT Jun 28, 2026-6pm EDT Jul 4, 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