I-26 weather conditions near Johnson City, Tennessee
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7 day weather forecast
Current condition: Thunderstorm Rain 73°F 2025-08-13T13:53:00-04:00
This Afternoon 2025-08-13, Showers. Showers and possibly a thunderstorm. High near 78. West wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Tonight 2025-08-13, Chance T-storms then Chance Showers and Patchy Fog. A chance of showers and thunderstorms. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.
Thursday 2025-08-14, Chance T-storms and Patchy Fog. A slight chance of showers, then a chance of showers and thunderstorms after 11am. Patchy fog before 10am. Otherwise, partly sunny, with a high near 85. Calm wind becoming northwest around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night 2025-08-14, Slight Chance T-storms then Patchy Fog. A 20 percent chance of showers and thunderstorms before 11pm. Patchy fog between 1am and 2am. Otherwise, partly cloudy, with a low around 67. Calm wind.
Friday 2025-08-15, Mostly Sunny then Chance T-storms. A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Calm wind.
Friday Night 2025-08-15, Chance T-storms then Mostly Clear. A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 66. Calm wind.
Saturday 2025-08-16, Sunny then Chance T-storms. A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 88. Calm wind.
Saturday Night 2025-08-16, Chance T-storms then Mostly Clear. A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 66.
Sunday 2025-08-17, Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89.
Sunday Night 2025-08-17, Mostly Clear. Mostly clear, with a low around 66.
Monday 2025-08-18, Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 90.
Monday Night 2025-08-18, Slight Chance T-storms then Mostly Clear. A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 66.
Tuesday 2025-08-19, Mostly Sunny then Chance T-storms. A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Current condition: Thunderstorm Rain 73°F 2025-08-13T13:53:00-04:00 
This Afternoon 2025-08-13, Showers. Showers and possibly a thunderstorm. High near 78. West wind around 5 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.Tonight 2025-08-13, Chance T-storms then Chance Showers and Patchy Fog. A chance of showers and thunderstorms. Patchy fog after 2am. Otherwise, mostly cloudy, with a low around 67. Calm wind. Chance of precipitation is 40%.
Thursday 2025-08-14, Chance T-storms and Patchy Fog. A slight chance of showers, then a chance of showers and thunderstorms after 11am. Patchy fog before 10am. Otherwise, partly sunny, with a high near 85. Calm wind becoming northwest around 5 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.Thursday Night 2025-08-14, Slight Chance T-storms then Patchy Fog. A 20 percent chance of showers and thunderstorms before 11pm. Patchy fog between 1am and 2am. Otherwise, partly cloudy, with a low around 67. Calm wind.
Friday 2025-08-15, Mostly Sunny then Chance T-storms. A 40 percent chance of showers and thunderstorms after 2pm. Mostly sunny, with a high near 87. Calm wind.
Friday Night 2025-08-15, Chance T-storms then Mostly Clear. A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 66. Calm wind.
Saturday 2025-08-16, Sunny then Chance T-storms. A 30 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 88. Calm wind.
Sunday 2025-08-17, Sunny then Slight Chance T-storms. A 20 percent chance of showers and thunderstorms after 2pm. Sunny, with a high near 89.
Sunday Night 2025-08-17, Mostly Clear. Mostly clear, with a low around 66.Monday Night 2025-08-18, Slight Chance T-storms then Mostly Clear. A 10 percent chance of showers and thunderstorms. Mostly clear, with a low around 66.
Tuesday 2025-08-19, Mostly Sunny then Chance T-storms. A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 88.