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.

Fair

15°F

-9°C

Humidity 56%
Wind Speed S 8 mph
Barometer 30.32 in (1028.8 mb)
Dewpoint 2°F (-17°C)
Visibility 10.00 mi
Wind Chill4°F (-16°C)
Last update 21 Jan 6:56 am EST
Extended Forecast for

Canonsburg PA

  • Today

    Today: Snow, mainly after noon. High near 38. Southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.

    High: 38 °F

    Mostly Cloudy
    then Snow

  • Tonight

    Tonight: Rain and snow likely before midnight, then a chance of snow. Mostly cloudy, with a low around 30. Southwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.

    Low: 30 °F

    Rain/Snow
    Likely then
    Chance Snow

  • Thursday

    Thursday: Partly sunny, with a high near 35. West wind 13 to 16 mph, with gusts as high as 28 mph.

    High: 35 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 17. West wind around 6 mph.

    Low: 17 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 24. West wind 8 to 14 mph.

    High: 24 °F

    Mostly Cloudy

  • Friday Night

    Friday Night: Mostly cloudy, with a low around 1.

    Low: 1 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy and cold, with a high near 13.

    High: 13 °F

    Cold

  • Saturday Night

    Saturday Night: Snow likely, mainly after 1am. Mostly cloudy, with a low around 8. Chance of precipitation is 70%.

    Low: 8 °F

    Snow Likely

  • Sunday

    Sunday: Snow likely, mainly before 1pm. Mostly cloudy, with a high near 20. Chance of precipitation is 70%.

    High: 20 °F

    Snow Likely

Detailed Forecast

Today
Snow, mainly after noon. High near 38. Southwest wind 7 to 12 mph increasing to 13 to 18 mph in the afternoon. Winds could gust as high as 31 mph. Chance of precipitation is 80%. Total daytime snow accumulation of less than one inch possible.
Tonight
Rain and snow likely before midnight, then a chance of snow. Mostly cloudy, with a low around 30. Southwest wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 70%. New snow accumulation of less than a half inch possible.
Thursday
Partly sunny, with a high near 35. West wind 13 to 16 mph, with gusts as high as 28 mph.
Thursday Night
Mostly cloudy, with a low around 17. West wind around 6 mph.
Friday
Mostly cloudy, with a high near 24. West wind 8 to 14 mph.
Friday Night
Mostly cloudy, with a low around 1.
Saturday
Mostly cloudy and cold, with a high near 13.
Saturday Night
Snow likely, mainly after 1am. Mostly cloudy, with a low around 8. Chance of precipitation is 70%.
Sunday
Snow likely, mainly before 1pm. Mostly cloudy, with a high near 20. Chance of precipitation is 70%.
Sunday Night
A chance of snow. Mostly cloudy, with a low around 6. Chance of precipitation is 40%.
Monday
Mostly cloudy, with a high near 20.
Monday Night
Partly cloudy, with a low around 6.
Tuesday
Mostly sunny, with a high near 23.
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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:
7:26 am EST Jan 21, 2026
Forecast Valid:
7am EST Jan 21, 2026-6pm EST Jan 27, 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