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

8°F

-13°C

Humidity 60%
Wind Speed W 14 mph
Barometer 30.25 in (1026.4 mb)
Dewpoint -3°F (-19°C)
Visibility 10.00 mi
Wind Chill-9°F (-23°C)
Last update 19 Jan 9:56 pm EST
Extended Forecast for

Canonsburg PA

Cold Weather Advisory until January 20, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
  •  
    Cold Weather Advisory until January 20, 12:00pm

    NOW until 12:00pm Tue

    Cold Weather Advisory

  • Tonight

    Low: 4 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Partly sunny, then gradually becoming sunny, with a high near 18. Wind chill values as low as -10. West wind 10 to 14 mph.

    High: 18 °F

    Becoming
    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 10. Southwest wind around 6 mph.

    Low: 10 °F

    Mostly Clear

  • Wednesday

    Wednesday: A slight chance of snow before 1pm, then rain and snow likely between 1pm and 4pm, then rain likely after 4pm. Mostly cloudy, with a high near 40. Southwest wind 8 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    High: 40 °F

    Slight Chance
    Snow Showers
    then
    Rain/Snow
    Likely

  • Wednesday Night

    Wednesday Night: Rain and snow likely before 4am, then a chance of snow. Mostly cloudy, with a low around 29. Southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.

    Low: 29 °F

    Rain/Snow
    Likely

  • Thursday

    Thursday: Partly sunny, with a high near 36.

    High: 36 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 14.

    Low: 14 °F

    Mostly Cloudy

  • Friday

    Friday: Mostly cloudy, with a high near 23.

    High: 23 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 4. Wind chill values as low as -10. West wind 9 to 11 mph, with gusts as high as 22 mph.
Tuesday
Partly sunny, then gradually becoming sunny, with a high near 18. Wind chill values as low as -10. West wind 10 to 14 mph.
Tuesday Night
Mostly clear, with a low around 10. Southwest wind around 6 mph.
Wednesday
A slight chance of snow before 1pm, then rain and snow likely between 1pm and 4pm, then rain likely after 4pm. Mostly cloudy, with a high near 40. Southwest wind 8 to 18 mph, with gusts as high as 31 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Wednesday Night
Rain and snow likely before 4am, then a chance of snow. Mostly cloudy, with a low around 29. Southwest wind around 14 mph, with gusts as high as 26 mph. Chance of precipitation is 60%. New snow accumulation of less than a half inch possible.
Thursday
Partly sunny, with a high near 36.
Thursday Night
Mostly cloudy, with a low around 14.
Friday
Mostly cloudy, with a high near 23.
Friday Night
Mostly cloudy, with a low around 3.
Saturday
A chance of snow after 1pm. Mostly cloudy and cold, with a high near 13. Chance of precipitation is 30%.
Saturday Night
A chance of snow. Mostly cloudy, with a low around 3. Chance of precipitation is 30%.
Sunday
A chance of snow. Partly sunny, with a high near 17. Chance of precipitation is 40%.
Sunday Night
A chance of snow. Partly cloudy, with a low around 4. Chance of precipitation is 30%.
Monday
Partly sunny, with a high near 21.
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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:
7:51 pm EST Jan 19, 2026
Forecast Valid:
10pm EST Jan 19, 2026-6pm EST Jan 26, 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