I-81 weather conditions near Mechanicsburg, Pennsylvania
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Overcast 62°F 2025-06-15T03:56:00-04:00 
Overnight 2025-06-15, Showers Likely and Patchy Fog. Showers likely, mainly before 5am. Patchy fog. Otherwise, cloudy, with a low around 59. Light east wind. Chance of precipitation is 70%. New precipitation amounts of less than a tenth of an inch possible.
Sunday 2025-06-15, Scattered Showers and Patchy Fog. Scattered showers. Patchy fog before 8am. Otherwise, cloudy, with a high near 66. East wind 3 to 5 mph. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Sunday Night 2025-06-15, Chance Showers and Patchy Fog. A chance of showers. Patchy fog after 10pm. Otherwise, cloudy, with a low around 60. Calm wind. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday 2025-06-16, Chance Showers. A chance of showers. Cloudy, with a high near 70. East wind 3 to 5 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Monday Night 2025-06-16, Slight Chance Showers. A slight chance of showers. Cloudy, with a low around 63. Calm wind. Chance of precipitation is 20%.- Tuesday 2025-06-17, Chance Showers. A slight chance of showers before 9am, then a chance of showers after 2pm. Mostly cloudy, with a high near 76. Chance of precipitation is 40%. New precipitation amounts of less than a tenth of an inch possible.
Tuesday Night 2025-06-17, Chance T-storms. A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 50%.Wednesday 2025-06-18, Mostly Cloudy then Chance Showers. A chance of showers after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 40%.
Wednesday Night 2025-06-18, Chance T-storms. A chance of showers before 8pm, then a chance of showers and thunderstorms between 8pm and 2am. Partly cloudy, with a low around 71. Chance of precipitation is 30%.Juneteenth 2025-06-19, Chance Showers then Showers Likely. Showers likely, mainly after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 60%.
Thursday Night 2025-06-19, Showers Likely then Partly Cloudy. Showers likely. Partly cloudy, with a low around 65. Chance of precipitation is 60%.
Friday 2025-06-20, Sunny. Sunny, with a high near 82.
Friday Night 2025-06-20, Mostly Clear. Mostly clear, with a low around 63.- Saturday 2025-06-21, Sunny. Sunny, with a high near 87.