| NWS Forecast for: Knoxville TN Issued by: National Weather Service Morristown, TN Last Update: 1:37 am EDT Jul 20, 2025 |  |
Today: Showers and thunderstorms likely, mainly between 2pm and 3pm. Mostly sunny and hot, with a high near 32. Heat index values as high as 37. Southwest wind around 10 km/h. Chance of precipitation is 60%. New rainfall amounts between 7.5 mm and 1 cm possible. Tonight: A chance of showers and thunderstorms before 1am, then a slight chance of thunderstorms after 5am. Partly cloudy, with a low around 23. Calm wind. Chance of precipitation is 30%. Monday: Showers and thunderstorms likely, mainly after 2pm. Partly sunny and hot, with a high near 34. Heat index values as high as 39. Southwest wind 5 to 10 km/h. Chance of precipitation is 60%. New rainfall amounts between 2.5 and 5 mm possible. Monday Night: Showers and thunderstorms likely before 2am, then a slight chance of showers. Mostly cloudy, with a low around 23. Calm wind. Chance of precipitation is 60%. Tuesday: A slight chance of showers before 11am, then a slight chance of showers and thunderstorms between 11am and 2pm, then showers likely and possibly a thunderstorm after 2pm. Mostly sunny and hot, with a high near 34. Calm wind. Chance of precipitation is 60%. Tuesday Night: Showers likely and possibly a thunderstorm before 8pm. Partly cloudy, with a low around 23. Calm wind. Chance of precipitation is 60%. Wednesday: A 30 percent chance of showers and thunderstorms after 2pm. Mostly sunny and hot, with a high near 34. Calm wind. Wednesday Night: A 30 percent chance of showers and thunderstorms before 8pm. Partly cloudy, with a low around 23. Thursday: A 30 percent chance of showers and thunderstorms after 2pm. Sunny and hot, with a high near 34. Thursday Night: A 30 percent chance of showers and thunderstorms before 8pm. Mostly clear, with a low around 23. Friday: A 40 percent chance of showers and thunderstorms. Sunny and hot, with a high near 34. Friday Night: A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 23. Saturday: A 40 percent chance of showers and thunderstorms. Mostly sunny and hot, with a high near 34. | |
| Knoxville TN 35.98°N 83.94°W (Elev. 942 m) | |
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