I-81 weather conditions near Harford, Pennsylvania
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Seasoned Weather Conditions
Current Weather Conditions
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7 day weather forecast
Current condition: Overcast 77°F 2025-07-11T23:54:00-04:00
Overnight 2025-07-12, Slight Chance T-storms and Patchy Fog. A slight chance of showers and thunderstorms after 1am. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 66. Calm wind. Chance of precipitation is 20%.
Saturday 2025-07-12, Chance T-storms and Areas Fog then Showers Likely. A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Areas of fog before 10am. Otherwise, partly sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night 2025-07-12, Slight Chance T-storms. A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 66. South wind 3 to 5 mph. Chance of precipitation is 20%.
Sunday 2025-07-13, Chance Showers then Showers Likely. A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. South wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night 2025-07-13, Showers Likely. Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. Light south wind. Chance of precipitation is 70%.
Monday 2025-07-14, Chance T-storms then Showers Likely. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Monday Night 2025-07-14, Showers Likely then Partly Cloudy. Showers likely before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 60%.
Tuesday 2025-07-15, Mostly Sunny. Mostly sunny, with a high near 86.
Tuesday Night 2025-07-15, Mostly Clear. Mostly clear, with a low around 64.
Wednesday 2025-07-16, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Wednesday Night 2025-07-16, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Thursday 2025-07-17, Showers Likely. Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Thursday Night 2025-07-17, Showers Likely. Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.
Friday 2025-07-18, Chance Showers then Chance T-storms. A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 50%.
Current condition: Overcast 77°F 2025-07-11T23:54:00-04:00 
Overnight 2025-07-12, Slight Chance T-storms and Patchy Fog. A slight chance of showers and thunderstorms after 1am. Patchy fog after 2am. Otherwise, partly cloudy, with a low around 66. Calm wind. Chance of precipitation is 20%.Saturday 2025-07-12, Chance T-storms and Areas Fog then Showers Likely. A chance of showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. Areas of fog before 10am. Otherwise, partly sunny, with a high near 85. Calm wind becoming south around 5 mph in the afternoon. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night 2025-07-12, Slight Chance T-storms. A slight chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 66. South wind 3 to 5 mph. Chance of precipitation is 20%.Sunday 2025-07-13, Chance Showers then Showers Likely. A chance of showers before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 83. South wind around 6 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday Night 2025-07-13, Showers Likely. Showers likely and possibly a thunderstorm before 2am, then a chance of showers and thunderstorms after 2am. Mostly cloudy, with a low around 66. Light south wind. Chance of precipitation is 70%.Monday 2025-07-14, Chance T-storms then Showers Likely. A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2pm. Mostly cloudy, with a high near 82. Chance of precipitation is 60%.
Monday Night 2025-07-14, Showers Likely then Partly Cloudy. Showers likely before 8pm. Partly cloudy, with a low around 62. Chance of precipitation is 60%.
Tuesday 2025-07-15, Mostly Sunny. Mostly sunny, with a high near 86.
Tuesday Night 2025-07-15, Mostly Clear. Mostly clear, with a low around 64.Wednesday 2025-07-16, Mostly Sunny then Chance T-storms. A chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 88. Chance of precipitation is 30%.
Wednesday Night 2025-07-16, Chance T-storms then Chance Showers. A chance of showers and thunderstorms. Mostly cloudy, with a low around 69. Chance of precipitation is 30%.
Thursday 2025-07-17, Showers Likely. Showers likely and possibly a thunderstorm. Partly sunny, with a high near 87. Chance of precipitation is 60%.
Thursday Night 2025-07-17, Showers Likely. Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 66. Chance of precipitation is 60%.Friday 2025-07-18, Chance Showers then Chance T-storms. A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 50%.