Todays weather in Knoxville TN - Monday - 25 May 2026

Thunderstorms are dominating the Knoxville, TN forecast this Memorial Day, and they're not letting up anytime soon. Today's high reaches near 80°F with showers and storms likely through the afternoon — rain chances sit at 73% — and tonight ramps up even further with an 82% chance of overnight storms and a low around 65°F. No active severe weather alerts are in place, but conditions warrant attention if you have outdoor plans.This episode breaks down exactly what you need to know before stepping outside: umbrella is non-negotiable, humidity is high, and winds are calm — meaning the heat and moisture will just hang there. If you're heading to a cookout or Memorial Day gathering, know your covered backup before the skies open up.Looking ahead at the week, Tuesday brings another round of showers and thunderstorms with an 80% rain chance and a high near 81°F. Wednesday is the peak — a 90% probability of precipitation makes it the wettest day of the stretch, with a high around 82°F. Thursday backs off slightly to 62%, Friday offers a brief morning window before storms return at night, and the weekend stays unsettled. Saturday's high drops to 77°F, while Sunday falls to around a 54% storm chance.The bottom line for Knoxville this week: pack rain gear, budget extra commute time every day, and treat any dry spell as a bonus. This is a full wet-week briefing — practical, specific, and under three minutes.This episode includes AI-generated content.