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 75°F 2025-06-22T01:56:00-04:00 
Overnight 2025-06-22, Mostly Clear. Mostly clear, with a low around 69. Light south wind.Sunday 2025-06-22, Sunny then Slight Chance T-storms. A slight chance of showers and thunderstorms before 3pm, then a slight chance of showers and thunderstorms after 5pm. Mostly sunny and hot, with a high near 96. Heat index values as high as 101. West wind 5 to 8 mph. Chance of precipitation is 20%.
Sunday Night 2025-06-22, Slight Chance T-storms then Mostly Clear. A slight chance of showers and thunderstorms between 8pm and 9pm. Partly cloudy, with a low around 76. West wind 3 to 5 mph. Chance of precipitation is 20%.
Monday 2025-06-23, Hot. Sunny and hot, with a high near 99. Heat index values as high as 108. Calm wind becoming northwest around 6 mph in the afternoon.- Monday Night 2025-06-23, Mostly Clear. Mostly clear, with a low around 76. Light west wind.
- Tuesday 2025-06-24, Hot. Sunny and hot, with a high near 98.
- Tuesday Night 2025-06-24, Mostly Clear. Mostly clear, with a low around 76.
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. Chance of precipitation is 30%.
Wednesday Night 2025-06-25, Chance T-storms then Partly Cloudy. A chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 73. Chance of precipitation is 30%.
Thursday 2025-06-26, Mostly Sunny then Chance Showers. A chance of showers after 2pm. Mostly sunny and hot, with a high near 92. Chance of precipitation is 50%.
Thursday Night 2025-06-26, Chance T-storms. A chance of showers and thunderstorms. Mostly cloudy, with a low around 72. Chance of precipitation is 40%.
Friday 2025-06-27, Chance Showers. A chance of showers. Partly sunny, with a high near 86. 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 70. Chance of precipitation is 50%.
Saturday 2025-06-28, Chance Showers. A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40%.