I-79 weather conditions near Canonsburg, Pennsylvania
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Mostly Cloudy 85°F 2025-07-13T16:56:00-04:00
Tonight 2025-07-13, Chance T-storms and Patchy Dense Fog. A chance of showers and thunderstorms, mainly before 3am. Patchy dense fog after 1am. Otherwise, partly cloudy, with a low around 70. West wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday 2025-07-14, Slight Chance T-storms and Patchy Fog then Chance T-storms. A chance of showers and thunderstorms, mainly after noon. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 83. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night 2025-07-14, Partly Cloudy then Patchy Fog. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 68. Calm wind.
Tuesday 2025-07-15, Areas Fog then Chance T-storms. A chance of showers and thunderstorms after 2pm. Areas of fog before 9am. Otherwise, partly sunny, with a high near 88. Light southeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night 2025-07-15, Chance T-storms then Slight Chance Showers. A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday 2025-07-16, Chance Showers then T-storms Likely. A chance of showers, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 88. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night 2025-07-16, T-storms Likely. Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Thursday 2025-07-17, Chance Showers then Showers Likely. Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 70%.
Thursday Night 2025-07-17, Showers Likely then Chance T-storms. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Friday 2025-07-18, Chance T-storms then Showers Likely. A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Friday Night 2025-07-18, Showers Likely then Chance T-storms. Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday 2025-07-19, Chance Showers. A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Saturday Night 2025-07-19, Chance T-storms. A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Sunday 2025-07-20, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Current condition: Mostly Cloudy 85°F 2025-07-13T16:56:00-04:00 
Tonight 2025-07-13, Chance T-storms and Patchy Dense Fog. A chance of showers and thunderstorms, mainly before 3am. Patchy dense fog after 1am. Otherwise, partly cloudy, with a low around 70. West wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.Monday 2025-07-14, Slight Chance T-storms and Patchy Fog then Chance T-storms. A chance of showers and thunderstorms, mainly after noon. Patchy fog before 8am. Otherwise, mostly cloudy, with a high near 83. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 50%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Monday Night 2025-07-14, Partly Cloudy then Patchy Fog. Patchy fog after midnight. Otherwise, partly cloudy, with a low around 68. Calm wind.
Tuesday 2025-07-15, Areas Fog then Chance T-storms. A chance of showers and thunderstorms after 2pm. Areas of fog before 9am. Otherwise, partly sunny, with a high near 88. Light southeast wind. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tuesday Night 2025-07-15, Chance T-storms then Slight Chance Showers. A chance of showers and thunderstorms before 11pm, then a slight chance of showers between 11pm and 2am. Mostly cloudy, with a low around 71. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday 2025-07-16, Chance Showers then T-storms Likely. A chance of showers, then showers and thunderstorms likely after 11am. Partly sunny, with a high near 88. Chance of precipitation is 60%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night 2025-07-16, T-storms Likely. Showers and thunderstorms likely, mainly before 8pm. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.Thursday 2025-07-17, Chance Showers then Showers Likely. Showers likely and possibly a thunderstorm, mainly after 2pm. Mostly cloudy, with a high near 86. Chance of precipitation is 70%.
Thursday Night 2025-07-17, Showers Likely then Chance T-storms. Showers likely and possibly a thunderstorm before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.
Friday 2025-07-18, Chance T-storms then Showers Likely. A chance of showers and thunderstorms between 8am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 84. Chance of precipitation is 70%.
Friday Night 2025-07-18, Showers Likely then Chance T-storms. Showers and thunderstorms likely. Mostly cloudy, with a low around 68. Chance of precipitation is 60%.
Saturday 2025-07-19, Chance Showers. A chance of showers. Partly sunny, with a high near 84. Chance of precipitation is 40%.
Saturday Night 2025-07-19, Chance T-storms. A chance of showers and thunderstorms. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.Sunday 2025-07-20, Partly Sunny then Chance T-storms. A chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 40%.