Knoxville is starting Tuesday clear, calm and around 72 degrees, but the quiet morning is the opening act for a punishing stretch of heat. The high is expected to reach 95 degrees, with the heat index near 100 under sunny skies and almost no wind.
Heat Peaks Wednesday Through Friday
The hottest stretch arrives Wednesday through Friday, when highs are forecast to reach 98 degrees Wednesday, 99 Thursday and 98 Friday. The National Weather Service says heat index values could climb to about 104 Wednesday, urging people outdoors to take frequent breaks and drink plenty of water, according to the National Weather Service.
Overnight temperatures will offer limited relief, staying in the low to mid-70s through the week. Winds should remain light, generally around 0 mph, meaning there will be little breeze to take the edge off afternoon heat.
Rain Chances Hold Off Until The Weekend
Sunny and mostly clear conditions dominate through Friday, with rain chances staying at 11% or lower. A slight chance of showers and thunderstorms returns Saturday afternoon, with a 20% chance and a high near 95.
Sunday brings another mostly sunny day with a high near 93 and a 20% chance of afternoon storms. Labor Day looks somewhat cooler at 90 degrees, but a 20% chance of afternoon showers and thunderstorms remains in the forecast.
Stay Ahead Of The Heat
The latest outlook extends and intensifies the hot pattern described in Hoodline's earlier forecast, especially for the middle of the week. With no active watches or warnings listed, the main concern is still cumulative heat: drink water regularly, schedule strenuous outdoor work earlier or later, and check on children, older adults and pets.
