Knoxville woke up in a bit of a swamp this morning, May 28, with overcast skies, patchy fog, and humidity cranked up alongside temperatures near 72°F. Conditions should brighten a bit as the day goes on, with partial clearing and a high around 83°F, but there is still a slight chance of brief showers or isolated thunderstorms between about 11 a.m. and 5 p.m. Drivers should watch for reduced visibility in low-lying spots through mid-morning and give themselves extra time for school runs and the commute.
Morning Fog And Sticky Start
Patchy, and in some spots possibly dense, fog is expected through mid-morning, especially down in river valleys and other low-lying areas. With dew points hanging in the low 70s, once the temperature climbs, it will feel every bit as muggy as it sounds.
Afternoon Scattered Storms
From late morning into mid-afternoon, there is a slight chance of spotty showers or thunderstorms. Any that do bubble up should be short-lived, with only brief, localized downpours. The National Weather Service in Morristown expects most areas to stay dry, with new rainfall totals generally under a tenth of an inch. Winds will be light at 0 to 5 mph, so any storm that does form may creep along rather than race through. No watches or warnings are posted at this time.
Weekend Outlook
Rain chances start to climb Friday night into Saturday as a wetter air mass moves north. Saturday is shaping up as the most likely day for widespread showers and thunderstorms, with a high near 79°F. That is a shift from today’s isolated pop-up activity to a much wetter weekend setup. For some added background on how this pattern is evolving, see afternoon storms poised to drench Knoxville commute. Conditions should trend drier by early next week, with sunnier skies expected to return around Tuesday and Wednesday.
Plan Ahead
A light rain jacket is a smart grab for afternoon errands, just in case one of those quick-hit showers finds you. If you have outdoor plans on Saturday, sketch out a backup option now. Keep an eye on updated forecasts before heading out and build in a little extra time this morning wherever fog is cutting down visibility.
