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Severe Thunderstorms and Heavy Rainfall; Typhoon Watch in Guam and CNMI

Heavy to excessive rainfall will continue through tonight from the Texas Big Bend region into southern Oklahoma. Scattered damaging wind gusts and a few tornadoes may accompany a line of severe thunderstorms that is expected across the Mid-Atlantic into New England Friday. A Typhoon Watch continues for Guam and CNMI as Tropical Storm Champi will strengthen and approach the islands this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Washington County Airport (KAFJ)

Lat: 40.14°NLon: 80.29°WElev: 1184ft.

Overcast

61°F

16°C

Humidity 97%
Wind Speed SW 6 mph
Barometer 30.03 in (1016.8 mb)
Dewpoint 60°F (16°C)
Visibility 10.00 mi
Last update 15 Oct 8:56 pm EDT
Extended Forecast for

Canonsburg PA

  • Tonight

    Tonight: A chance of showers and thunderstorms, mainly before 4am, then a slight chance of thunderstorms after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 64. Southwest wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.

    Low: 64 °F

    Slight Chance
    T-storms then
    Chance
    Showers

  • Friday

    Friday: Showers, mainly before 5pm. Temperature rising to near 72 by 11am, then falling to around 59 during the remainder of the day. Breezy, with a southwest wind 16 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.

    High: 72 °F⇓

    Showers and
    Breezy

  • Friday Night

    Friday Night: Showers likely, mainly between 11pm and 1am. Mostly cloudy, with a low around 39. West wind around 15 mph becoming north after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 39 °F

    Showers
    Likely then
    Chance
    Showers

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 50. North wind 14 to 16 mph.

    High: 50 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Widespread frost, mainly after 5am. Otherwise, clear, with a low around 32. North wind around 5 mph becoming calm in the evening.

    Low: 32 °F

    Frost

  • Sunday

    Sunday: Widespread frost before 9am. Otherwise, sunny, with a high near 59.

    High: 59 °F

    Frost then
    Sunny

  • Sunday Night

    Sunday Night: Patchy frost after 5am. Otherwise, clear, with a low around 35.

    Low: 35 °F

    Clear then
    Patchy Frost

  • Monday

    Monday: Patchy frost before 9am. Otherwise, sunny, with a high near 64.

    High: 64 °F

    Patchy Frost
    then Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 38.

    Low: 38 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms, mainly before 4am, then a slight chance of thunderstorms after 5am. Cloudy, then gradually becoming partly cloudy, with a low around 64. Southwest wind 6 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 40%.
Friday
Showers, mainly before 5pm. Temperature rising to near 72 by 11am, then falling to around 59 during the remainder of the day. Breezy, with a southwest wind 16 to 21 mph, with gusts as high as 32 mph. Chance of precipitation is 90%. New precipitation amounts of less than a tenth of an inch possible.
Friday Night
Showers likely, mainly between 11pm and 1am. Mostly cloudy, with a low around 39. West wind around 15 mph becoming north after midnight. Winds could gust as high as 26 mph. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 50. North wind 14 to 16 mph.
Saturday Night
Widespread frost, mainly after 5am. Otherwise, clear, with a low around 32. North wind around 5 mph becoming calm in the evening.
Sunday
Widespread frost before 9am. Otherwise, sunny, with a high near 59.
Sunday Night
Patchy frost after 5am. Otherwise, clear, with a low around 35.
Monday
Patchy frost before 9am. Otherwise, sunny, with a high near 64.
Monday Night
Mostly clear, with a low around 38.
Tuesday
Mostly sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 40.
Wednesday
Mostly sunny, with a high near 66.
Wednesday Night
Mostly clear, with a low around 40.
Thursday
Sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Canonsburg PA
 40.27°N 80.18°W (Elev. 1030 ft)
Last Update:
7:03 pm EDT Oct 15, 2026
Forecast Valid:
9pm EDT Oct 15, 2026-6pm EDT Oct 22, 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