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

26°F

-3°C

Humidity 63%
Wind Speed SW 20 G 28 mph
Barometer 29.93 in (1015.1 mb)
Dewpoint 15°F (-9°C)
Visibility 9.00 mi
Wind Chill12°F (-11°C)
Last update 19 Jan 10:56 am EST
Extended Forecast for

Canonsburg PA

Cold Weather Advisory January 19, 09:00pm until January 20, 12:00pm
Snow Squall Warning January 19, 11:47am until January 19, 12:00pm
Click here for hazard details and duration
Cold Weather Advisory
Snow Squall Warning
  •  
    Snow Squall Warning January 19, 11:47am until January 19, 12:00pm

    NOW until 12:00pm Mon

    Snow Squall Warning

  • M.L.King Day

    High: 26 °F⇓

    Chance Snow
    and Breezy

  • Tonight

    Tonight: Partly cloudy, with a low around 4. Wind chill values as low as -11. West wind 11 to 18 mph, with gusts as high as 31 mph.

    Low: 4 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 18. Wind chill values as low as -12. West wind 10 to 15 mph.

    High: 18 °F

    Mostly Sunny

  • Tuesday Night

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

    Low: 10 °F

    Mostly Clear

  • Wednesday

    Wednesday: A chance of snow after 1pm, mixing with rain after 4pm. Mostly cloudy, with a high near 38. South wind 8 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 38 °F

    Mostly Cloudy
    then Chance
    Rain/Snow

  • Wednesday Night

    Wednesday Night: A chance of rain before 1am, then a chance of rain and snow between 1am and 4am, then a chance of snow after 4am. Mostly cloudy, with a low around 29. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 29 °F

    Chance Rain
    then Chance
    Rain/Snow

  • Thursday

    Thursday: A chance of snow, mixing with rain after 7am, then gradually ending. Partly sunny, with a high near 35. Chance of precipitation is 30%.

    High: 35 °F

    Chance
    Rain/Snow

  • Thursday Night

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

    Low: 14 °F

    Partly Cloudy

Detailed Forecast

M.L.King Day
A chance of snow, mainly before 2pm. Mostly cloudy, with a temperature falling to around 16 by 5pm. Wind chill values as low as -2. Breezy, with a west wind 21 to 23 mph, with gusts as high as 38 mph. Chance of precipitation is 30%. Total daytime snow accumulation of less than a half inch possible.
Tonight
Partly cloudy, with a low around 4. Wind chill values as low as -11. West wind 11 to 18 mph, with gusts as high as 31 mph.
Tuesday
Mostly sunny, with a high near 18. Wind chill values as low as -12. West wind 10 to 15 mph.
Tuesday Night
Mostly clear, with a low around 10. South wind around 6 mph.
Wednesday
A chance of snow after 1pm, mixing with rain after 4pm. Mostly cloudy, with a high near 38. South wind 8 to 17 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Wednesday Night
A chance of rain before 1am, then a chance of rain and snow between 1am and 4am, then a chance of snow after 4am. Mostly cloudy, with a low around 29. Chance of precipitation is 50%. New precipitation amounts of less than a tenth of an inch possible.
Thursday
A chance of snow, mixing with rain after 7am, then gradually ending. Partly sunny, with a high near 35. Chance of precipitation is 30%.
Thursday Night
Partly cloudy, with a low around 14.
Friday
Mostly cloudy, with a high near 26.
Friday Night
Mostly cloudy, with a low around 3.
Saturday
Partly sunny and cold, with a high near 13.
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 19. Chance of precipitation is 40%.
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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:
5:47 am EST Jan 19, 2026
Forecast Valid:
11am EST Jan 19, 2026-6pm EST Jan 25, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation