| NWS Forecast for: Johnson City TN Issued by: National Weather Service Morristown, TN Last Update: 7:06 am EDT Jul 17, 2026 |  |
Today: A 10 percent chance of showers and thunderstorms after 5pm. Sunny and hot, with a high near 94. Heat index values as high as 99. Calm wind. Tonight: A chance of showers and thunderstorms before 3am, then a slight chance of showers and thunderstorms after 4am. Mostly cloudy, with a low around 71. Southwest wind around 5 mph becoming calm. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms. Saturday: Showers and thunderstorms likely before 4pm, then showers and possibly a thunderstorm between 4pm and 5pm, then showers and thunderstorms likely after 5pm. High near 88. Light southwest wind becoming west 5 to 10 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms. Saturday Night: Showers and thunderstorms before 2am, then showers likely and possibly a thunderstorm between 2am and 5am, then showers likely after 5am. Low around 70. Southwest wind around 5 mph. Chance of precipitation is 80%. Sunday: Showers likely before 11am, then a chance of showers and thunderstorms between 11am and 2pm, then showers and possibly a thunderstorm after 2pm. High near 86. Southwest wind around 5 mph. Chance of precipitation is 90%. Sunday Night: Showers and possibly a thunderstorm before 8pm. Low around 68. Calm wind. Chance of precipitation is 80%. Monday: Sunny, with a high near 89. Calm wind becoming west around 5 mph in the afternoon. Monday Night: Partly cloudy, with a low around 70. Tuesday: A 20 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 90. Tuesday Night: A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 2am. Mostly cloudy, with a low around 71. Chance of precipitation is 60%. Wednesday: Showers and thunderstorms likely. Partly sunny, with a high near 88. Chance of precipitation is 60%. Wednesday Night: A 30 percent chance of showers and thunderstorms. Mostly clear, with a low around 63. Thursday: Sunny, with a high near 86. | |
| Johnson City TN 36.32°N 82.37°W (Elev. 1699 ft) | |
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