Knoxville

Mixed Bag of Sunshine and Showers Ahead for Knoxville, Says National Weather Service

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Published on September 26, 2025
Mixed Bag of Sunshine and Showers Ahead for Knoxville, Says National Weather ServiceSource: Unsplash/Stephen Ellis

The National Weather Service in Knoxville has issued a detailed forecast and hazardous weather outlook for the region as we head into the last week of September, with a mix of sun, clouds, and potential showers on the horizon, according to their latest release. Today, Knoxville can expect a 30% chance of showers and thunderstorms, mainly cropping up after 4 p.m., with calm winds turning north and temperatures reaching a comfortable high near 80°F.

As the sun sets, the chance of rainfall persists with a similar likelihood of precipitation, skies remain mostly cloudy and low temperatures hovering around 64°F despite the calm wind, tonight, the humidity sitting high at 94% during the early morning might have left a mist in the air with visibility reduced to three quarters of a mile however it's lifting as the day warms. The weekend forecasts up the odds to a 50% chance of showers on Saturday, with potential thunderstorms after 11 a.m., and a partly cloudy Sunday night with a low close to 63°F.

Sunday through Thursday, the outlook looks generally upbeat, with mostly sunny days and clear nights, albeit there's a slight chance for showers and thunderstorms at the outset of the new week. Daytime highs are expected to be consistently around the low 80s, and nighttime lows in the mid-60s, which is typical for this time of year in east Tennessee. The National Weather Service in Morristown TN, also reminds residents that while there are no significant threats expected, a few storms that may arise today could bring gusty winds—not uncommon for September.

For anyone seeking to plan ahead, the NWS outlook from Saturday through next Thursday signals low probability for hazardous weather, so activities should continue uninterrupted, make sure to stay updated on any changes to the forecast the area covers portions of southwest North Carolina, east Tennessee and southwest Virginia; In the meantime, while no spotter activation is needed at this time, local weather enthusiasts and spotters should remain vigilant and ready to report any significant weather occurrences as they happen. Remember, being prepared is always your best defense against the whims of the weather.