Knoxville

Knoxville Braces for Mixed Weather: Sunny Skies and Thunderstorm Chances Ahead, NWS Reports

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Published on August 07, 2025
Knoxville Braces for Mixed Weather: Sunny Skies and Thunderstorm Chances Ahead, NWS ReportsSource: Google Street View

The National Weather Service in Knoxville is predicting a somewhat unsettled weather pattern over the coming days, with varying chances of showers and thunderstorms, interspersed with periods of mostly sunny skies; the theme is calm winds throughout, and temperatures consistently hovering in the high 80s, according to the latest forecast.

Starting today, Knoxvillians can expect a mild 20 percent chance of rain after 2pm following a short stint of patchy fog in the morning, the skies should remain mostly sunny with the highs reaching near 87 degrees, and similar patterns are forecast for the following days, though the likelihood of evening thunderstorms slightly increases tonight at a 30 percent chance mainly before 7pm, tonight's low will settle around a comfortable 67 degrees.

The forecast for the weekend maintains this narrative of gentle meteorological fluctuations: Saturday should be sunny with the thermometer pushing slightly higher to a peak of 88 degrees, while the night brings partial cloud cover and a low of 69 with the same calm conditions as before.

As Sunday arrives, in classic Tennessee summer fashion, temperatures are expected to touch a sweltering high of 90 degrees, a mostly sunny day might again see a 20 percent chance of afternoon showers and thunderstorms, while the onset of next week marks a more noticeable increase in precipitation probabilities, with Monday seeing a 40 percent chance of rain after 2pm continuing the trend of warm sunny mornings giving way to a potential for passing storms later in the day, and a consistent temperature pattern sees evening lows hovering around 70 degrees.

Into Tuesday and Wednesday, the National Weather Service cautions against a continuing 40 percent chance of daytime thunderstorms amidst partly sunny conditions, as highs persist near the 88 to 89-degree mark, indicating that those in Knoxville may want to keep their umbrellas close at hand as they navigate the capricious nature of the regional summertime climate.