Saturday, May 23, 2026 — Knoxville is starting the day in a gray blanket of thick fog and mist, with McGhee‑Tyson (KDKX) reporting about 66°F and very high humidity. Visibility in spots is down to roughly three‑quarters of a mile, which may make early travel feel a bit like driving through soup. The fog should lift by mid‑morning as the sun fights its way out, but the break will be short-lived. Multiple rounds of showers and thunderstorms are expected later today into the evening, with lightning and brief heavy downpours in the mix.
Afternoon Storms And What To Expect
The most active window for showers and thunderstorms runs from about 8 a.m. to 3 p.m. on Saturday, May 23, 2026, with coverage peaking from late morning into the early afternoon. Forecast highs are near 80°F, and new rainfall totals are expected to land around a tenth to a quarter of an inch. Isolated heavier bursts could briefly overwhelm drains and ditches, leading to minor urban or roadside flooding. Forecasters at the National Weather Service in Morristown say the unsettled pattern is set to hang around through the holiday weekend.
Commute And Holiday Plans
Heavier cells could slow commutes, with standing water and pooled lanes on low-lying city streets acting as the usual trouble spots. If you are banking on outdoor fun today or for Memorial Day (Monday, May 25, 2026), make sure you have an indoor backup and keep an eye on radar. Lightning can shut down pools, campgrounds and fairs in a hurry. Waterproof gear and a little extra travel time are your best bets to avoid getting caught in a sudden downpour.
Mountain Gusts And Wind Advisory
A Wind Advisory remains in effect for portions of the East Tennessee mountains and foothills through about 8 a.m. Saturday, May 23, 2026, where ridge‑top gusts of 40–50 mph have been reported. Camp Creek has already clocked gusts near 50 mph, according to the forecast discussion. Valley locations and downtown Knoxville should see mostly light winds, but any thunderstorm could still kick out strong, damaging gusts. Secure loose outdoor furniture and use caution on exposed roads.
We ran an earlier update on Friday about the soggy pattern; this post adds the mountain wind advisory and the latest timing for storms. See our storm roulette forecast for background; we will update again if warnings change.
