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.

Mostly Cloudy

62°F

17°C

Humidity 80%
Wind Speed N 9 mph
Barometer 30.09 in (1018.6 mb)
Dewpoint 56°F (13°C)
Visibility 10.00 mi
Last update 1 Apr 5:56 pm EDT
Extended Forecast for

Canonsburg PA

  • Tonight

    Tonight: Showers and possibly a thunderstorm before 11pm, then a chance of showers. Some of the storms could be severe. Low around 55. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 55 °F

    Severe
    Thunderstorms
    then Chance
    Showers

  • Thursday

    Thursday: A chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 80. Light and variable wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 80 °F

    Chance
    Showers then
    Slight Chance
    T-storms

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.

    Low: 63 °F

    Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Southwest wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 79 °F

    Partly Sunny
    then Chance
    T-storms

  • Friday Night

    Friday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. South wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 62 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 82 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: Showers, mainly after 8pm. Low around 48. Chance of precipitation is 90%.

    Low: 48 °F

    Showers

  • Sunday

    Sunday: Showers, mainly before 8am. High near 54. Chance of precipitation is 80%.

    High: 54 °F

    Showers then
    Chance
    Showers

  • Sunday Night

    Sunday Night: Mostly cloudy, with a low around 35.

    Low: 35 °F

    Mostly Cloudy

Detailed Forecast

Tonight
Showers and possibly a thunderstorm before 11pm, then a chance of showers. Some of the storms could be severe. Low around 55. North wind around 6 mph becoming calm in the evening. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A chance of showers and thunderstorms before 2pm, then a slight chance of showers and thunderstorms after 3pm. Partly sunny, with a high near 80. Light and variable wind becoming southwest 6 to 11 mph in the morning. Winds could gust as high as 21 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. South wind 7 to 10 mph, with gusts as high as 22 mph. Chance of precipitation is 30%.
Friday
A slight chance of showers before 8am, then a chance of showers and thunderstorms after 2pm. Mostly cloudy, with a high near 79. Southwest wind 11 to 16 mph, with gusts as high as 26 mph. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. South wind around 6 mph. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday
A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 82. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers, mainly after 8pm. Low around 48. Chance of precipitation is 90%.
Sunday
Showers, mainly before 8am. High near 54. Chance of precipitation is 80%.
Sunday Night
Mostly cloudy, with a low around 35.
Monday
Mostly sunny, with a high near 53.
Monday Night
Mostly cloudy, with a low around 36.
Tuesday
Mostly sunny, with a high near 48.
Tuesday Night
Mostly clear, with a low around 27.
Wednesday
Sunny, with a high near 55.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.27°N 80.18°W (Elev. 1030 ft)
Last Update:
5:47 pm EDT Apr 1, 2026
Forecast Valid:
6pm EDT Apr 1, 2026-6pm EDT Apr 8, 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