Mostly sunny and muggy today with highs near 89°F and heat‑index values in the mid‑90s. Showers and thunderstorms become more likely Friday through Sunday.

Muggy morning in Knoxville with highs near 86°F. Scattered storms are possible after 2 p.m.; saturated ground raises isolated flood risk.

A Flood Watch covers Knoxville today with heavy storms likely this afternoon. Expect downpours and possible urban flooding during the commute.