Weather Forecast for Knoxville

Tennessee, United States of America

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Patchy light rain in area with thunder

Current Weather - Knoxville: 34°C

Tennessee, United States of America

Patchy light rain in area with thunder

Feels like 38°C

Wind

6 km/h WSW

Humidity

49%

Pressure

1021 mb

UV Index

9

Visibility

10 km

Sunny

Sunny

Saturday, August 15, 2026

High

36°C

Low

23°C

Rain Chance

57%

Hourly Forecast

Thundery outbreaks in nearby 30°C
19:00
Patchy rain nearby 28°C
20:00
Patchy rain nearby 27°C
21:00
Patchy rain nearby 26°C
22:00
Clear 25°C
23:00
Aug 16

Day Statistics

Maximum Wind

7 km/h

Humidity

75%

Precipitation

1 mm

UV Index

9

Visibility

10 km

Rain Chance

57%

Snow Chance

0%

Sun & Moon

Sunrise

06:54 AM

Sunset

08:26 PM

Moonrise

09:58 AM

Moonset

09:59 PM

Moon Phase

Waxing Crescent

Moon Illumination

11%

Air Quality

PM2.5

8.7

μg/m³

PM10

9.1

μg/m³

NO₂

7.6

μg/m³

O₃

74.4

μg/m³

SO₂

0.9

μg/m³

CO

174.3

μg/m³

US EPA Index: 1 GB DEFRA Index: 1

Solar Radiation Data

Shortwave Radiation

548.21

Diffuse Radiation

161.69

DNI

0

GTI

0

When to visit Knoxville?

Plan your perfect trip with our month-by-month weather guide

⭐ Best months: August September October

January

☀️
9°C
💧
16 Days of rain
❄️
Heavy snow expected
🥶 Coldest month

February

☀️
12°C
💧
16 Days of rain
❄️
Heavy snow expected

March

☀️
16°C
💧
18 Days of rain
❄️
Moderate snowfall
🌧 Wettest month,

April

☀️
22°C
💧
16 Days of rain
❄️
No snowfall

May

☀️
26°C
💧
14 Days of rain
❄️
No snowfall

June

☀️
30°C
💧
14 Days of rain
❄️
No snowfall

July

☀️
31°C
💧
18 Days of rain
❄️
No snowfall
🔥 Hottest month

August

☀️
31°C
💧
13 Days of rain
❄️
No snowfall
Best time to visit

September

☀️
28°C
💧
13 Days of rain
❄️
No snowfall
Best time to visit

October

☀️
22°C
💧
11 Days of rain
❄️
Light snow possible
Best time to visit
🌵 Driest month

November

☀️
16°C
💧
14 Days of rain
❄️
Light snow possible

December

☀️
11°C
💧
17 Days of rain
❄️
Moderate snowfall