I-81 weather conditions near Harrisburg, Pennsylvania
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 78°F 2025-06-23T04:56:00-04:00 
Today 2025-06-23, Hot. Sunny and hot, with a high near 99. Heat index values as high as 105. Calm wind becoming northwest around 6 mph in the morning.
Tonight 2025-06-23, Mostly Clear. Mostly clear, with a low around 77. Calm wind.- Tuesday 2025-06-24, Hot. Sunny and hot, with a high near 99. Heat index values as high as 104. Calm wind becoming northwest around 6 mph in the afternoon.
- Tuesday Night 2025-06-24, Mostly Clear. Mostly clear, with a low around 76. Light northwest wind.
Wednesday 2025-06-25, Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 95. Calm wind becoming northwest around 6 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night 2025-06-25, Chance T-storms. A chance of showers and thunderstorms, mainly before 8pm. Mostly cloudy, with a low around 74. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.Thursday 2025-06-26, Mostly Sunny then T-storms Likely. Showers and thunderstorms likely after 2pm. Mostly sunny, with a high near 91. Chance of precipitation is 60%.
Thursday Night 2025-06-26, T-storms Likely. Showers and thunderstorms likely before 2am, then a chance of showers. Mostly cloudy, with a low around 71. Chance of precipitation is 60%.Friday 2025-06-27, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Chance of precipitation is 50%.
Friday Night 2025-06-27, Chance T-storms. A chance of showers and thunderstorms. Mostly cloudy, with a low around 71. Chance of precipitation is 50%.Saturday 2025-06-28, Partly Sunny then Showers Likely. Showers likely. Partly sunny, with a high near 86. Chance of precipitation is 60%.
Saturday Night 2025-06-28, Showers Likely then Chance T-storms. Showers and thunderstorms likely. Mostly cloudy, with a low around 70. Chance of precipitation is 60%.
Sunday 2025-06-29, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 40%.