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

34°F

1°C

Humidity 70%
Wind Speed W 9 G 16 mph
Barometer 29.95 in (1014.4 mb)
Dewpoint 25°F (-4°C)
Visibility 10.00 mi
Wind Chill27°F (-3°C)
Last update 21 Feb 3:56 am EST
Extended Forecast for

Canonsburg PA

  • Today

    Today: Mostly cloudy, then gradually becoming sunny, with a high near 47. West wind 8 to 10 mph.

    High: 47 °F

    Decreasing
    Clouds

  • Tonight

    Tonight: A chance of snow, mainly after midnight. Increasing clouds, with a low around 32. Light west wind. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.

    Low: 32 °F

    Chance Snow

  • Sunday

    Sunday: Snow. High near 37. Light west wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.

    High: 37 °F

    Snow

  • Sunday Night

    Sunday Night: Snow likely. Cloudy, with a low around 28. Northwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 28 °F

    Snow Likely

  • Monday

    Monday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 34. Northwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 34 °F

    Snow Likely

  • Monday Night

    Monday Night: A slight chance of snow before 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 20%.

    Low: 18 °F

    Slight Chance
    Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 32.

    High: 32 °F

    Mostly Cloudy

  • Tuesday Night

    Tuesday Night: A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.

    Low: 26 °F

    Chance Snow

  • Wednesday

    Wednesday: A chance of snow before 1pm, then a chance of rain. Mostly cloudy, with a high near 45. Chance of precipitation is 40%.

    High: 45 °F

    Chance Snow
    then Chance
    Rain/Snow

Detailed Forecast

Today
Mostly cloudy, then gradually becoming sunny, with a high near 47. West wind 8 to 10 mph.
Tonight
A chance of snow, mainly after midnight. Increasing clouds, with a low around 32. Light west wind. Chance of precipitation is 40%. New snow accumulation of less than a half inch possible.
Sunday
Snow. High near 37. Light west wind increasing to 5 to 10 mph in the morning. Chance of precipitation is 80%. New snow accumulation of less than a half inch possible.
Sunday Night
Snow likely. Cloudy, with a low around 28. Northwest wind 8 to 11 mph, with gusts as high as 21 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Monday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 34. Northwest wind 13 to 17 mph, with gusts as high as 28 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Monday Night
A slight chance of snow before 1am. Mostly cloudy, with a low around 18. Chance of precipitation is 20%.
Tuesday
Mostly cloudy, with a high near 32.
Tuesday Night
A chance of snow. Mostly cloudy, with a low around 26. Chance of precipitation is 40%.
Wednesday
A chance of snow before 1pm, then a chance of rain. Mostly cloudy, with a high near 45. Chance of precipitation is 40%.
Wednesday Night
Rain likely. Mostly cloudy, with a low around 32. Chance of precipitation is 70%.
Thursday
A chance of rain. Mostly cloudy, with a high near 45. Chance of precipitation is 50%.
Thursday Night
A chance of rain. Mostly cloudy, with a low around 26. Chance of precipitation is 30%.
Friday
Mostly sunny, with a high near 45.
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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:
2:11 am EST Feb 21, 2026
Forecast Valid:
4am EST Feb 21, 2026-6pm EST Feb 27, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation