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.

Overcast

46°F

8°C

Humidity 61%
Wind Speed W 17 G 23 mph
Barometer 30.05 in (1017.6 mb)
Dewpoint 33°F (1°C)
Visibility 10.00 mi
Wind Chill39°F (4°C)
Last update 5 Apr 2:56 pm EDT
Extended Forecast for

Canonsburg PA

  • This Afternoon

    This Afternoon: Mostly cloudy, with a high near 50. West wind around 16 mph, with gusts as high as 28 mph.

    High: 50 °F

    Mostly Cloudy

  • Tonight

    Tonight: Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 34. West wind 7 to 13 mph, with gusts as high as 23 mph.

    Low: 34 °F

    Mostly Cloudy
    then Areas
    Frost

  • Monday

    Monday: A chance of showers before 2pm, then a slight chance of showers after 3pm. Areas of frost before 7am. Otherwise, increasing clouds, with a high near 53. West wind 6 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    High: 53 °F

    Areas Frost
    then Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 32. West wind around 10 mph, with gusts as high as 21 mph.

    Low: 32 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 44. Northwest wind around 11 mph, with gusts as high as 22 mph.

    High: 44 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 26.

    Low: 26 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 61.

    High: 61 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 40.

    Low: 40 °F

    Partly Cloudy

  • Thursday

    Thursday: Mostly sunny, with a high near 70.

    High: 70 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly cloudy, with a high near 50. West wind around 16 mph, with gusts as high as 28 mph.
Tonight
Areas of frost after 5am. Otherwise, mostly cloudy, with a low around 34. West wind 7 to 13 mph, with gusts as high as 23 mph.
Monday
A chance of showers before 2pm, then a slight chance of showers after 3pm. Areas of frost before 7am. Otherwise, increasing clouds, with a high near 53. West wind 6 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night
Partly cloudy, with a low around 32. West wind around 10 mph, with gusts as high as 21 mph.
Tuesday
Mostly sunny, with a high near 44. Northwest wind around 11 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 26.
Wednesday
Sunny, with a high near 61.
Wednesday Night
Partly cloudy, with a low around 40.
Thursday
Mostly sunny, with a high near 70.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 74.
Friday Night
Mostly cloudy, with a low around 52.
Saturday
Partly sunny, with a high near 73.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.25°N 80.18°W (Elev. 997 ft)
Last Update:
2:21 pm EDT Apr 5, 2026
Forecast Valid:
3pm EDT Apr 5, 2026-6pm EDT Apr 11, 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