- Clothing
- Light layers work well; a jacket for the evening.
Tomorrow's Weather Forecast - Knoxville
Tomorrow's weather in Knoxville. high 31°C (88°F), low 22°C (72°F). Overcast.
Tomorrow’s Outlook
Tomorrow will be 4°C cooler than today. Light rain is possible, though a 36% peak chance means much of the day could stay dry. That risk lines up with humidity averaging 72% through the day the more moisture in the air, the more readily clouds build into showers. Humidity stays high near 72%, so it will feel muggier and stickier than the temperature alone suggests. A light breeze near 16 km/h is expected. Sunrise is at 7:15 AM and sunset at 7:47 PM, for about 12h 31m of daylight.
- Tomorrow
- 31°/ 22°
- Today35° / 21°
Tomorrow’s Hourly Weather Outlook
Morning6 AM – Noon24°
- Rain probability
- 26%
- Wind speed
- 9 km/h
AfternoonNoon – 6 PM30°
- Rain probability
- 36%
- Wind speed
- 14 km/h
Evening6 PM – Midn25°
- Rain probability
- 34%
- Wind speed
- 16 km/h
NightMidn – 6 AM25°
- Rain probability
- 5%
- Wind speed
- 12 km/h
24-Hour Rain & Temperature Forecast
Tomorrow12 Sep
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Planning Advice for Tomorrow
- Outdoor
- Good conditions for outdoor activities.
- Travel
- Standard travel conditions expected.
Sunrise & Sunset
Sunrise
Dawn 6:45 AMTotal Daylight
Full day forecastSolar noon 1:31 PM
Sunset
Dusk 8:17 PMvs today-2 min daylight
Sunrise shiftSame time
Sunset shift1 min earlier
5-Day Weather Forecast
Full 15-Day ForecastWeather Insight
Knoxville is forecast to reach a high of 31°C tomorrow, with an overnight low around 22°C. That's 2° above the long-term average high of 29°C for this time of year. Expect a low chance of rain (36% probability) and a gentle breeze averaging 16 km/h. Air quality is currently Moderate (AQI 73), driven mainly by PM2.5 at 17 μg/m³.
Today vs Normal
35°C+6° above normal
The long-term average high for today is 29°C.
14 of the last 28 days with published data ran above normal.
That's a break from the pattern - today's forecast runs above normal even though the recent stretch mostly ran below.
Red = above normal, blue = at or below · last 12 days
Air Quality
Air Quality
Moderate
Air quality is acceptable for most people. Unusually sensitive individuals should consider reducing prolonged or heavy outdoor exertion.