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.

Partly Cloudy

37°F

3°C

Humidity 46%
Wind Speed W 9 G 17 mph
Barometer 30.60 in (1037.3 mb)
Dewpoint 18°F (-8°C)
Visibility 10.00 mi
Wind Chill30°F (-1°C)
Last update 28 Mar 12:56 pm EDT
Extended Forecast for

Canonsburg PA

  • This Afternoon

    This Afternoon: Sunny, with a high near 45. Northwest wind around 9 mph.

    High: 45 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 30. Light and variable wind.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Partly sunny, with a high near 59. Southwest wind 5 to 11 mph.

    High: 59 °F

    Partly Sunny

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 47. South wind 6 to 9 mph.

    Low: 47 °F

    Mostly Cloudy

  • Monday

    Monday: Mostly cloudy, with a high near 66. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.

    High: 66 °F

    Mostly Cloudy

  • Monday Night

    Monday Night: A chance of rain. Mostly cloudy, with a low around 57. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 57 °F

    Chance Rain

  • Tuesday

    Tuesday: Partly sunny, with a high near 77.

    High: 77 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: A chance of rain after 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.

    Low: 51 °F

    Chance Rain

  • Wednesday

    Wednesday: Rain likely. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.

    High: 63 °F

    Rain Likely

Detailed Forecast

This Afternoon
Sunny, with a high near 45. Northwest wind around 9 mph.
Tonight
Mostly clear, with a low around 30. Light and variable wind.
Sunday
Partly sunny, with a high near 59. Southwest wind 5 to 11 mph.
Sunday Night
Mostly cloudy, with a low around 47. South wind 6 to 9 mph.
Monday
Mostly cloudy, with a high near 66. Southwest wind 10 to 14 mph, with gusts as high as 24 mph.
Monday Night
A chance of rain. Mostly cloudy, with a low around 57. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday
Partly sunny, with a high near 77.
Tuesday Night
A chance of rain after 8pm. Mostly cloudy, with a low around 51. Chance of precipitation is 50%.
Wednesday
Rain likely. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.
Wednesday Night
A chance of rain. Mostly cloudy, with a low around 39. Chance of precipitation is 50%.
Thursday
Rain likely. Mostly cloudy, with a high near 59. Chance of precipitation is 60%.
Thursday Night
Rain likely. Mostly cloudy, with a low around 47. Chance of precipitation is 70%.
Friday
Rain likely. Mostly cloudy, with a high near 61. Chance of precipitation is 60%.
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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:
11:36 am EDT Mar 28, 2026
Forecast Valid:
1pm EDT Mar 28, 2026-6pm EDT Apr 3, 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