Knoxville rolled into Monday under clear skies at McGhee-Tyson Airport, waking up to about 72°F and the kind of muggy air that already feels like a wet blanket. That thick humidity will crank up the discomfort later, making it feel several degrees hotter during any storm bursts and turning outdoor plans into a sweaty slog.
A band of showers and thunderstorms is expected this afternoon, with the chance of rain near 80 percent and the risk of brief heavy downpours and localized flooding. The high should top out near 88°F, with heat index values pushing up to about 96°F and generally light southwest winds. Most spots are projected to see between a tenth and a quarter of an inch of rain, although any stronger storm could dump heavier pockets of water, according to the National Weather Service Morristown.
When To Expect Rain
The morning hours look mostly dry, with only a slight chance of a passing shower. After about 1 p.m., though, rain chances jump, peaking roughly between 2 p.m. and 5 p.m. That mid- to late-afternoon window is the prime time for sudden downpours, lightning, and slow-going traffic where water collects quickly on roads.
Heat And Where To Cool Off
Temperatures are set to hang out in the upper 80s through early next week, and overnight lows will only slip into the low 70s, so it will not cool off much after dark. The city has expanded its cooling options, including Knox Area Rescue Ministries, the Volunteer Ministry Center, and public libraries and recreation centers, and officials recommend calling 2-1-1 to confirm hours before you head out, per WOKI.
Midweek Watch
Forecasters are also eyeing Tuesday into Wednesday, when a stronger frontal system could bring another round of storms capable of gusty winds and localized flooding. For more context on the pattern, see our earlier coverage of sticky Knoxville mornings and pop-up storms.
