Knoxville Braces for Near-Record Heat This Week

Cloudy Sunday with showers before a warm-up and potential storms

Published on Mar. 8, 2026

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Knoxville is waking up to a gloomy, rainy Sunday, but the weather is set to take a dramatic turn this week. After a high near 70°F today, temperatures are expected to climb into the mid-70s on Monday and reach the upper 70s to low 80s by Wednesday - putting the region back into near-record territory for early March. A more dynamic weather system is expected to bring the potential for strong to severe storms on Wednesday night into Thursday.

Why it matters

The rapid warm-up and potential for severe storms could disrupt travel, outdoor activities, and daily routines for Knoxville residents. This weather pattern is also indicative of the broader climate changes impacting the region, with earlier and more extreme heat waves becoming more common.

The details

Sunday will see rain showers likely before 5 p.m., with less than a tenth of an inch of rainfall expected. Temperatures will peak near 70°F under light, 5 mph winds. The warm-up begins on Monday, with highs reaching the mid-70s. By Wednesday, temperatures are forecast to climb into the upper 70s to low 80s, putting the region at risk of near-record heat for early March. A more dynamic weather system is expected to arrive on Wednesday night, bringing the potential for strong to severe thunderstorms across parts of the eastern United States. On the backside of that system, higher elevations may briefly see light snow on Thursday morning.

  • On Sunday, March 8, rain showers are likely before 5 p.m.
  • Temperatures are expected to climb into the mid-70s on Monday, March 9.
  • By Wednesday, March 11, highs are forecast to reach the upper 70s to low 80s.
  • A dynamic weather system is expected to arrive on Wednesday night, March 11, bringing the potential for strong to severe storms.
  • On Thursday morning, March 12, higher elevations may briefly see light snow.

The players

NWS Morristown

The National Weather Service office serving the Knoxville area, which has been providing updates and forecasts for the upcoming weather patterns.

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What’s next

The NWS Morristown will continue to monitor the developing weather patterns and issue any necessary watches or warnings for the Knoxville area as the week progresses.

The takeaway

The rapid warm-up and potential for severe storms in Knoxville this week serve as a reminder of the increasing frequency and intensity of extreme weather events driven by climate change. Residents should stay vigilant, prepare for disruptions, and heed any warnings from local authorities.