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.

Partly Cloudy

60°F

16°C

Humidity 80%
Wind Speed S 9 mph
Barometer 29.65 in (1004.1 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 28 Dec 5:56 pm EST
Extended Forecast for

Canonsburg PA

Wind Advisory December 29, 01:00am until December 30, 01:00am
Click here for hazard details and duration
Wind Advisory

  • Tonight

    Tonight: Rain, mainly between 2am and 5am. Low around 39. Breezy, with a southwest wind 13 to 22 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.

    Low: 39 °F

    Slight Chance
    Rain then
    Rain and
    Breezy

  • Monday

    Monday: A chance of rain showers before noon, then a chance of snow showers. Mostly cloudy, with a temperature falling to around 27 by 5pm. Windy, with a west wind 22 to 26 mph, with gusts as high as 49 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.

    High: 43 °F⇓

    Windy. Chance
    Rain then
    Chance Snow
    Showers

  • Monday Night

    Monday Night: Snow showers, mainly between 7pm and 1am. Patchy blowing snow before 1am. Low around 21. Breezy, with a west wind around 23 mph, with gusts as high as 43 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.

    Low: 21 °F

    Snow Showers
    and Patchy
    Blowing Snow

  • Tuesday

    Tuesday: Mostly cloudy, with a high near 28. Breezy, with a west wind 16 to 20 mph, with gusts as high as 37 mph.

    High: 28 °F

    Mostly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Tuesday Night

    Tuesday Night: A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 21. West wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.

    Low: 21 °F

    Slight Chance
    Snow Showers
    then Chance
    Snow Showers

  • Wednesday

    Wednesday: A chance of snow showers. Patchy blowing snow between 11am and 3pm. Cloudy, with a high near 33. Chance of precipitation is 50%.

    High: 33 °F

    Chance Snow
    Showers and
    Patchy
    Blowing Snow

  • Wednesday Night

    Wednesday Night: Snow showers. Low around 18. Chance of precipitation is 80%.

    Low: 18 °F

    Snow Showers

  • New Year's Day

    New Year's Day: A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 40%.

    High: 27 °F

    Chance Snow
    Showers

  • Thursday Night

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

    Low: 14 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Rain, mainly between 2am and 5am. Low around 39. Breezy, with a southwest wind 13 to 22 mph, with gusts as high as 48 mph. Chance of precipitation is 100%. New precipitation amounts between a tenth and quarter of an inch possible.
Monday
A chance of rain showers before noon, then a chance of snow showers. Mostly cloudy, with a temperature falling to around 27 by 5pm. Windy, with a west wind 22 to 26 mph, with gusts as high as 49 mph. Chance of precipitation is 30%. New snow accumulation of less than one inch possible.
Monday Night
Snow showers, mainly between 7pm and 1am. Patchy blowing snow before 1am. Low around 21. Breezy, with a west wind around 23 mph, with gusts as high as 43 mph. Chance of precipitation is 80%. New snow accumulation of less than one inch possible.
Tuesday
Mostly cloudy, with a high near 28. Breezy, with a west wind 16 to 20 mph, with gusts as high as 37 mph.
Tuesday Night
A chance of snow showers, mainly after 1am. Mostly cloudy, with a low around 21. West wind around 15 mph, with gusts as high as 28 mph. Chance of precipitation is 50%. New snow accumulation of less than a half inch possible.
Wednesday
A chance of snow showers. Patchy blowing snow between 11am and 3pm. Cloudy, with a high near 33. Chance of precipitation is 50%.
Wednesday Night
Snow showers. Low around 18. Chance of precipitation is 80%.
New Year's Day
A chance of snow showers. Mostly cloudy, with a high near 27. Chance of precipitation is 40%.
Thursday Night
Mostly cloudy, with a low around 14.
Friday
Mostly sunny, with a high near 29.
Friday Night
Mostly cloudy, with a low around 18.
Saturday
Partly sunny, with a high near 35.
Saturday Night
Partly cloudy, with a low around 18.
Sunday
Partly sunny, with a high near 32.
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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:
1:38 pm EST Dec 28, 2025
Forecast Valid:
6pm EST Dec 28, 2025-6pm EST Jan 4, 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