Knoxville/ Weather & Environment

Knoxville Basks In Crisp, Sunny Weekend Before Heat Returns

AI Assisted Icon
Published on September 26, 2026
Knoxville Basks In Crisp, Sunny Weekend Before Heat ReturnsSource: Google Street View

Knoxville is starting Saturday with mostly clear skies and temperatures in the mid-50s, but a sunny afternoon will warm up quickly. The high should reach 77 degrees with a light northeast breeze and no rain expected.

Cool Nights, Sunny Weekend

Saturday night will be mostly clear and noticeably cooler, with temperatures falling to around 49 degrees. Sunday brings another sunny day with a high near 76, light winds and another crisp overnight low around 49.

Monday stays sunny with a high near 78, according to the National Weather Service in Morristown. The forecast remains dry through Tuesday, when temperatures climb to about 83 degrees under sunny skies.

Heat Builds Before Late Week Showers

Wednesday looks mostly sunny and warmer, with a high near 86. A slight chance of showers arrives after 2 a.m. Thursday, followed by a small 20% rain chance during the day as temperatures reach around 87.

Friday could bring a better chance of rain showers, though the forecast still calls for mostly sunny skies and a high near 87. For now, the weekend looks ideal for outdoor plans, with cool mornings, comfortable afternoons and no weather alerts listed for the Knoxville area.