I-79 weather conditions near Harmony, Pennsylvania
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Fair 86°F 2025-08-15T17:56:00-04:00
Tonight 2025-08-15, Mostly Clear. Mostly clear, with a low around 63. Calm wind.
Saturday 2025-08-16, Patchy Fog then Sunny. Patchy fog before 9am. Otherwise, sunny and hot, with a high near 91. Calm wind.
Saturday Night 2025-08-16, Partly Cloudy then Patchy Fog. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 66. Calm wind.
Sunday 2025-08-17, Chance Showers and Patchy Fog then Chance T-storms. A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 88. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night 2025-08-17, Chance T-storms then Patchy Fog. A chance of thunderstorms before 8pm. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday 2025-08-18, Patchy Fog then Mostly Sunny. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 88.
Monday Night 2025-08-18, Partly Cloudy. Partly cloudy, with a low around 64.
Tuesday 2025-08-19, Chance Showers then Chance T-storms. A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Tuesday Night 2025-08-19, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Wednesday 2025-08-20, Chance Showers then Chance T-storms. A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Wednesday Night 2025-08-20, Chance T-storms then Partly Cloudy. A chance of thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Thursday 2025-08-21, Mostly Sunny. Mostly sunny, with a high near 82.
Thursday Night 2025-08-21, Mostly Clear then Patchy Fog. Patchy fog. Otherwise, mostly clear, with a low around 57.
Friday 2025-08-22, Patchy Fog then Sunny. Patchy fog. Otherwise, sunny, with a high near 85.
Current condition: Fair 86°F 2025-08-15T17:56:00-04:00 
Tonight 2025-08-15, Mostly Clear. Mostly clear, with a low around 63. Calm wind.Saturday 2025-08-16, Patchy Fog then Sunny. Patchy fog before 9am. Otherwise, sunny and hot, with a high near 91. Calm wind.
Saturday Night 2025-08-16, Partly Cloudy then Patchy Fog. Patchy fog after 3am. Otherwise, partly cloudy, with a low around 66. Calm wind.
Sunday 2025-08-17, Chance Showers and Patchy Fog then Chance T-storms. A chance of showers, with thunderstorms also possible after 2pm. Patchy fog before 9am. Otherwise, partly sunny, with a high near 88. Calm wind becoming northwest 5 to 7 mph in the afternoon. Chance of precipitation is 40%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Sunday Night 2025-08-17, Chance T-storms then Patchy Fog. A chance of thunderstorms before 8pm. Patchy fog after 1am. Otherwise, partly cloudy, with a low around 63. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Monday 2025-08-18, Patchy Fog then Mostly Sunny. Patchy fog before 7am. Otherwise, mostly sunny, with a high near 88.
Monday Night 2025-08-18, Partly Cloudy. Partly cloudy, with a low around 64.Tuesday 2025-08-19, Chance Showers then Chance T-storms. A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 85. Chance of precipitation is 50%.
Tuesday Night 2025-08-19, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 50%.
Wednesday 2025-08-20, Chance Showers then Chance T-storms. A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 80. Chance of precipitation is 40%.
Wednesday Night 2025-08-20, Chance T-storms then Partly Cloudy. A chance of thunderstorms. Partly cloudy, with a low around 60. Chance of precipitation is 30%.
Thursday Night 2025-08-21, Mostly Clear then Patchy Fog. Patchy fog. Otherwise, mostly clear, with a low around 57.