Knoxville is starting Monday with mostly clear skies and temperatures around 43 degrees, but the day will warm quickly. Sunshine will push the afternoon high near 72, with light northeast winds and no rain expected.
The mild afternoons will come with distinctly chilly mornings and nights. Tonight will drop to around 43 degrees, so early risers may want a jacket even as the afternoon feels comfortably warm.
Afternoons Reach The Low To Mid-70s
Tuesday and Wednesday look like the warmest days of the week, with highs near 74 under sunny skies. Overnight lows will stay in the low to mid-40s, while winds remain light at around 5 mph or less.
Dry Weather Holds Through The Weekend
Sunny and mostly clear conditions continue Thursday through Sunday, with highs ranging from 72 to 73 degrees. The National Weather Service forecast shows no measurable precipitation through the weekend, and the region should remain notably dry with low humidity.
There are no weather alerts posted for the area. The forecast discussion does note that patchy frost could develop in some colder mountain, plateau and outlying areas during the next couple of mornings, though Knoxville itself is expected to see a quiet, increasingly warm stretch.
A Frost-Date Reference, Not a Temperature Normal
The forecast’s highs and overnight lows cannot be compared with typical temperatures using the available climate reference, which lists a frost date rather than temperature averages. The National Weather Service Morristown gives October 24th as Knoxville’s median first-frost date. That is a climatological marker, not a prediction of frost in the city this week.
What Long-Term Climate Records Show
The 2022 Tennessee State Climate Summary reports that statewide temperatures have risen by 0.5°F since the beginning of the 20th century. That broad figure does not isolate autumn temperatures or quantify changes in the length of the frost-free season. The Knoxville reference above gives a median first-frost date, not a range of first-freeze dates.
