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Current weather in Knoxville is broken clouds.

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This page shows hourly weather forecast for Knoxville, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Knoxville updated regularly?

Weather data for Knoxville is updated regularly with the latest available observations and forecasts.

Now · 8:06 PM

Knoxville Weather & Hourly Forecast

United States · Tennessee · 37920

71°F

Mostly cloudy night

Feels like: 76°F

💧 Humidity 94% 🌡 Pressure 30.03 inHg 💨 Wind 4 mph 👁 Visibility 10.7 mi ☁ Clouds 88% ☀️ UV index 0.0 · Low 🌅 Sunrise 7:22 AM 🌇 Sunset 7:34 PM

Hourly Forecast for Knoxville

Today

9:00 PM

Partly cloudy night

71° 💧 0.001 in 💨 5 mph H 94%30.06 inHg

Tomorrow

12:00 AM

Mostly clear night

69° 💧 0.002 in 💨 6 mph H 96%30.06 inHg

3:00 AM

Clear night

68° 💧 None 💨 4 mph H 98%30.06 inHg

6:00 AM

Partly cloudy night

67° 💧 0.010 in 💨 3 mph H 98%30.09 inHg

9:00 AM

Light rain

68° 💧 0.058 in 💨 3 mph H 92%30.15 inHg

12:00 PM

Light thunderstorms

70° 💧 0.131 in 💨 1 mph H 89%30.15 inHg

3:00 PM

Light rain

75° 💧 0.124 in 💨 3 mph H 77%30.09 inHg

6:00 PM

Light thunderstorms

71° 💧 0.217 in 💨 5 mph H 86%30.09 inHg

9:00 PM

Light thunderstorms

66° 💧 0.100 in 💨 5 mph H 97%30.12 inHg

Thursday

12:00 AM

Mostly cloudy night

66° 💧 0.002 in 💨 1 mph H 98%30.15 inHg

3:00 AM

Light rain

65° 💧 0.090 in 💨 4 mph H 98%30.12 inHg

6:00 AM

Light rain

63° 💧 0.013 in 💨 4 mph H 97%30.15 inHg

9:00 AM

Light rain

64° 💧 0.030 in 💨 4 mph H 96%30.18 inHg

12:00 PM

Light rain

68° 💧 0.017 in 💨 6 mph H 83%30.18 inHg

3:00 PM

Mostly cloudy

73° 💧 0.002 in 💨 7 mph H 67%30.12 inHg

6:00 PM

Mostly sunny

73° 💧 None 💨 7 mph H 65%30.09 inHg

Today

9:00 PM

Partly cloudy night

71° 💧 0.000 in 💨 5 mph H 94%30.06 inHg

10:00 PM

Mostly clear night

70° 💧 0.000 in 💨 5 mph H 95%30.06 inHg

11:00 PM

Mostly clear night

70° 💧 None 💨 5 mph H 96%30.06 inHg

Tomorrow

12:00 AM

Mostly clear night

69° 💧 0.001 in 💨 6 mph H 96%30.06 inHg

1:00 AM

Mostly clear night

69° 💧 0.000 in 💨 5 mph H 96%30.06 inHg

2:00 AM

Mostly clear night

68° 💧 0.001 in 💨 5 mph H 97%30.06 inHg

3:00 AM

Clear night

68° 💧 None 💨 4 mph H 98%30.06 inHg

4:00 AM

Mostly clear night

67° 💧 None 💨 3 mph H 98%30.06 inHg

5:00 AM

Mostly clear night

67° 💧 None 💨 3 mph H 98%30.09 inHg

6:00 AM

Partly cloudy night

67° 💧 None 💨 3 mph H 98%30.09 inHg

7:00 AM

Light rain

67° 💧 0.006 in 💨 5 mph H 97%30.12 inHg

8:00 AM

Light rain

67° 💧 0.004 in 💨 1 mph H 95%30.12 inHg

9:00 AM

Light rain

68° 💧 0.012 in 💨 3 mph H 92%30.15 inHg

10:00 AM

Light thunderstorms

69° 💧 0.031 in 💨 2 mph H 90%30.15 inHg

11:00 AM

Light rain

71° 💧 0.014 in 💨 1 mph H 87%30.15 inHg

12:00 PM

Light thunderstorms

70° 💧 0.030 in 💨 1 mph H 89%30.15 inHg

1:00 PM

Light thunderstorms

70° 💧 0.070 in 💨 2 mph H 92%30.15 inHg

2:00 PM

Light thunderstorms

73° 💧 0.031 in 💨 2 mph H 81%30.12 inHg

3:00 PM

Light rain

75° 💧 0.014 in 💨 3 mph H 77%30.09 inHg

4:00 PM

Light thunderstorms

75° 💧 0.023 in 💨 1 mph H 79%30.09 inHg

5:00 PM

Light thunderstorms

73° 💧 0.086 in 💨 1 mph H 85%30.09 inHg

6:00 PM

Light thunderstorms

71° 💧 0.044 in 💨 5 mph H 86%30.09 inHg

7:00 PM

Thunderstorms

68° 💧 0.100 in 💨 1 mph H 94%30.12 inHg

8:00 PM

Light thunderstorms

66° 💧 0.073 in 💨 4 mph H 97%30.12 inHg

9:00 PM

Light thunderstorms

66° 💧 0.083 in 💨 5 mph H 97%30.12 inHg

10:00 PM

Light rain

66° 💧 0.012 in 💨 5 mph H 98%30.15 inHg

11:00 PM

Light rain

66° 💧 0.005 in 💨 4 mph H 98%30.12 inHg

Thursday

12:00 AM

Mostly cloudy night

66° 💧 0.001 in 💨 1 mph H 98%30.15 inHg

1:00 AM

Overcast night

65° 💧 0.001 in 💨 1 mph H 98%30.12 inHg

2:00 AM

Overcast night

65° 💧 None 💨 4 mph H 98%30.12 inHg

3:00 AM

Light rain

65° 💧 0.025 in 💨 4 mph H 98%30.12 inHg

4:00 AM

Light rain

64° 💧 0.041 in 💨 4 mph H 99%30.12 inHg

5:00 AM

Light rain

63° 💧 0.023 in 💨 5 mph H 98%30.15 inHg

6:00 AM

Light rain

63° 💧 0.008 in 💨 4 mph H 97%30.15 inHg

7:00 AM

Overcast night

63° 💧 0.002 in 💨 4 mph H 98%30.15 inHg

8:00 AM

Mostly cloudy

63° 💧 0.002 in 💨 4 mph H 98%30.18 inHg

9:00 AM

Light rain

64° 💧 0.007 in 💨 4 mph H 96%30.18 inHg

10:00 AM

Light rain

65° 💧 0.010 in 💨 5 mph H 91%30.18 inHg

11:00 AM

Light rain

66° 💧 0.013 in 💨 6 mph H 87%30.18 inHg

12:00 PM

Light rain

68° 💧 0.011 in 💨 6 mph H 83%30.18 inHg

1:00 PM

Light rain

69° 💧 0.006 in 💨 6 mph H 77%30.18 inHg

2:00 PM

Mostly cloudy

71° 💧 None 💨 7 mph H 71%30.15 inHg

3:00 PM

Mostly cloudy

73° 💧 None 💨 7 mph H 67%30.12 inHg

4:00 PM

Mostly sunny

73° 💧 0.002 in 💨 7 mph H 65%30.12 inHg

5:00 PM

Mostly sunny

73° 💧 0.001 in 💨 8 mph H 64%30.09 inHg

6:00 PM

Mostly sunny

73° 💧 None 💨 7 mph H 65%30.09 inHg

7:00 PM

Mostly sunny

71° 💧 None 💨 5 mph H 70%30.12 inHg

8:00 PM

Mostly clear night

68° 💧 None 💨 5 mph H 77%30.12 inHg

9:00 PM

Mostly clear night

67° 💧 None 💨 5 mph H 79%30.12 inHg

10:00 PM

Clear night

66° 💧 None 💨 7 mph H 81%30.15 inHg

11:00 PM

Clear night

66° 💧 None 💨 7 mph H 81%30.15 inHg

Friday

12:00 AM

Clear night

65° 💧 None 💨 6 mph H 83%30.15 inHg

1:00 AM

Clear night

63° 💧 None 💨 5 mph H 87%30.15 inHg

2:00 AM

Mostly clear night

62° 💧 None 💨 6 mph H 88%30.12 inHg

3:00 AM

Mostly clear night

61° 💧 None 💨 5 mph H 88%30.12 inHg

4:00 AM

Clear night

60° 💧 None 💨 4 mph H 90%30.12 inHg

5:00 AM

Clear night

59° 💧 None 💨 5 mph H 90%30.12 inHg

6:00 AM

Clear night

58° 💧 None 💨 6 mph H 91%30.15 inHg

7:00 AM

Clear night

58° 💧 None 💨 6 mph H 91%30.15 inHg

8:00 AM

Sunny

58° 💧 None 💨 6 mph H 90%30.18 inHg

11:00 AM

Sunny

66° 💧 None 💨 5 mph H 64%30.18 inHg

2:00 PM

Mostly sunny

73° 💧 None 💨 5 mph H 55%30.12 inHg

5:00 PM

Sunny

75° 💧 None 💨 7 mph H 48%30.06 inHg

8:00 PM

Clear night

67° 💧 None 💨 7 mph H 63%30.06 inHg

11:00 PM

Clear night

62° 💧 None 💨 8 mph H 69%30.12 inHg

Saturday

2:00 AM

Clear night

57° 💧 None 💨 6 mph H 75%30.12 inHg

5:00 AM

Clear night

54° 💧 None 💨 6 mph H 82%30.09 inHg

8:00 AM

Sunny

52° 💧 None 💨 5 mph H 87%30.12 inHg

11:00 AM

Sunny

64° 💧 None 💨 5 mph H 59%30.15 inHg

2:00 PM

Partly cloudy

72° 💧 None 💨 3 mph H 43%30.09 inHg

5:00 PM

Mostly sunny

75° 💧 None 💨 4 mph H 36%30.03 inHg

8:00 PM

Clear night

66° 💧 None 💨 3 mph H 62%30.03 inHg

11:00 PM

Mostly clear night

61° 💧 None 💨 6 mph H 71%30.03 inHg

Sunday

2:00 AM

Mostly clear night

57° 💧 None 💨 5 mph H 83%30.03 inHg

5:00 AM

Overcast night

54° 💧 None 💨 5 mph H 90%30.00 inHg

8:00 AM

Partly cloudy

53° 💧 None 💨 5 mph H 92%30.03 inHg

11:00 AM

Mostly sunny

67° 💧 None 💨 6 mph H 54%30.00 inHg

2:00 PM

Mostly cloudy

74° 💧 None 💨 4 mph H 42%29.97 inHg

5:00 PM

Mostly cloudy

75° 💧 None 💨 5 mph H 36%29.88 inHg

8:00 PM

Clear night

67° 💧 None 💨 4 mph H 54%29.88 inHg

11:00 PM

Mostly clear night

61° 💧 None 💨 4 mph H 74%29.91 inHg

Monday

2:00 AM

Clear night

58° 💧 None 💨 5 mph H 74%29.91 inHg

5:00 AM

Clear night

56° 💧 None 💨 4 mph H 83%29.91 inHg

8:00 AM

Mostly sunny

55° 💧 None 💨 5 mph H 86%29.94 inHg

2:00 PM

Sunny

76° 💧 None 💨 4 mph H 34%29.91 inHg

8:00 PM

Clear night

68° 💧 None 💨 5 mph H 50%29.88 inHg

Tuesday

2:00 AM

Clear night

58° 💧 None 💨 5 mph H 82%29.91 inHg

8:00 AM

Sunny

55° 💧 None 💨 5 mph H 89%29.97 inHg

2:00 PM

Sunny

81° 💧 None 💨 3 mph H 27%29.91 inHg

8:00 PM

Clear night

73° 💧 None 💨 3 mph H 45%29.85 inHg

Wednesday

2:00 AM

Clear night

64° 💧 None 💨 1 mph H 75%29.88 inHg

8:00 AM

Mostly cloudy

60° 💧 None 💨 2 mph H 85%29.91 inHg

2:00 PM

Partly cloudy

90° 💧 None 💨 10 mph H 28%29.83 inHg

8:00 PM

Overcast night

80° 💧 None 💨 10 mph H 47%29.83 inHg

Thursday

2:00 AM

Overcast night

70° 💧 None 💨 3 mph H 84%29.85 inHg

8:00 AM

Overcast

68° 💧 None 💨 2 mph H 90%29.88 inHg

2:00 PM

Overcast

84° 💧 None 💨 11 mph H 47%29.88 inHg

8:00 PM

Partly cloudy night

77° 💧 None 💨 5 mph H 59%29.88 inHg

Friday

2:00 AM

Mostly clear night

71° 💧 None 💨 6 mph H 82%29.94 inHg

8:00 AM

Light rain

68° 💧 None 💨 5 mph H 95%29.97 inHg

2:00 PM

Mostly cloudy

82° 💧 None 💨 8 mph H 59%29.94 inHg

8:00 PM

Mostly clear night

74° 💧 None 💨 2 mph H 82%29.88 inHg

Saturday

2:00 AM

Mostly clear night

68° 💧 None 💨 6 mph H 96%29.91 inHg

8:00 AM

Moderate rain

66° 💧 None 💨 4 mph H 99%29.94 inHg

2:00 PM

Light rain

78° 💧 None 💨 8 mph H 73%29.85 inHg

8:00 PM

Mostly clear night

74° 💧 None 💨 7 mph H 78%29.80 inHg

Sunday

2:00 AM

Partly cloudy night

65° 💧 None 💨 8 mph H 98%29.83 inHg

8:00 AM

Overcast

62° 💧 None 💨 5 mph H 100%29.88 inHg

2:00 PM

Mostly sunny

73° 💧 None 💨 9 mph H 49%29.88 inHg

8:00 PM

Clear night

64° 💧 None 💨 4 mph H 65%29.88 inHg

Monday

2:00 AM

Clear night

56° 💧 None 💨 4 mph H 83%29.94 inHg

8:00 AM

Sunny

53° 💧 None 💨 2 mph H 88%30.00 inHg

2:00 PM

Sunny

70° 💧 None 💨 3 mph H 45%29.97 inHg

8:00 PM

Clear night

64° 💧 None 💨 5 mph H 64%29.94 inHg

Tuesday

2:00 AM

Mostly cloudy night

56° 💧 None 💨 2 mph H 85%30.00 inHg

8:00 AM

Overcast

54° 💧 None 💨 3 mph H 92%30.03 inHg

2:00 PM

Overcast

70° 💧 None 💨 1 mph H 47%29.97 inHg

8:00 PM

Overcast night

64° 💧 None 💨 1 mph H 72%29.94 inHg

Wednesday

2:00 AM

Overcast night

58° 💧 None 💨 6 mph H 73%29.97 inHg

8:00 AM

Mostly sunny

53° 💧 None 💨 7 mph H 78%30.00 inHg

In Knoxville and, more broadly, across the state of Tennessee: This morning will start with mostly cloudy skies, and temperatures will be warm, ranging from the mid-70s to the low 90s. Light southwest winds at around 6 mph will bring occasional gusts up to 13 mph. As the day progresses, conditions will remain quite hot, with temperatures staying in the 70s to the low 90s. There’s a possibility of light rain, with an accumulation of about 0.16 inches, and the highest likelihood of rain will be later in the afternoon. The winds will continue to be gentle, mostly southwest at 6 mph, with some gusts. Overall, it will be a warm and partly cloudy day with a chance of brief showers in the afternoon.

15-Day Weather Outlook for Knoxville

TomorrowTomorrow

Light thunderstorms 75°/66° 💧 None 💨 6 mph

Thursday, Sep 24Thu Sep 24

Mostly cloudy 73°/63° 💧 None 💨 8 mph

Friday, Sep 25Fri Sep 25

Mostly sunny 75°/58° 💧 0.876 in 💨 8 mph

Saturday, Sep 26Sat Sep 26

Partly cloudy 75°/52° 💧 None 💨 6 mph

Sunday, Sep 27Sun Sep 27

Mostly sunny 75°/53° 💧 None 💨 6 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 76°/55° 💧 None 💨 5 mph

Tuesday, Sep 29Tue Sep 29

Sunny 81°/55° 💧 None 💨 5 mph

Wednesday, Sep 30Wed Sep 30

Mostly cloudy 90°/60° 💧 None 💨 10 mph

Thursday, Oct 1Thu Oct 1

Overcast 84°/68° 💧 0.024 in 💨 11 mph

Friday, Oct 2Fri Oct 2

Light rain 82°/68° 💧 0.130 in 💨 8 mph

Saturday, Oct 3Sat Oct 3

Moderate rain 78°/66° 💧 0.348 in 💨 8 mph

Sunday, Oct 4Sun Oct 4

Partly cloudy 73°/62° 💧 0.120 in 💨 9 mph

Monday, Oct 5Mon Oct 5

Sunny 70°/53° 💧 None 💨 5 mph

Tuesday, Oct 6Tue Oct 6

Mostly cloudy 70°/54° 💧 None 💨 3 mph

Wednesday, Oct 7Wed Oct 7

Overcast 58°/53° 💧 None 💨 7 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Knoxville

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Knoxville

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 9:00 PM

PM2.5 Fine particles Good 8,5µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 12,8µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Good 29,6µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 3,0µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is favorable for outdoor activities.

UV & HEALTH

UV, Sun & Health Outlook in Knoxville

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 6,0High 😊Good

Tomorrow UV 5,3Moderate 😊Good

Thursday UV 4,9Moderate 🙂Fair

Friday UV 7,0High 🙂Fair

Saturday UV 6,7High 🙂Fair

Sunday UV 6,0High —Unavailable

Monday UV 6,0High —Unavailable

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Good air quality

Air quality is good and outdoor activities can be enjoyed normally.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Knoxville

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · KNOXVILLE, TENNESSEE

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 3:00 AM–4:00 AM.

83/100Best-hour score

BEST TIME TONIGHT 3:00 AM–4:00 AM Astronomical darkness: 8:58 PM–5:59 AM

☁ Cloud cover 11% Real hourly forecast for the best viewing hour.

☾ Moonlight 88% Waxing Gibbous · Moon about 12° above the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 57° high at the best hour.

✦ Estimated visible meteors 0–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min41%

UPCOMING METEOR PERIODSStart, peak and end dates · weather should be checked closer to the peak.

SEP 20–NOV 20

Southern TauridsStart SEP 20 · Peak NOV 5 · End NOV 20 · ZHR 7 · 20% Moon at peak

ACTIVE NOW

OCT 2–NOV 7

OrionidsStart OCT 2 · Peak OCT 21 · End NOV 7 · ZHR 20 · 77% Moon at peak

UPCOMING

OCT 20–DEC 10

Northern TauridsStart OCT 20 · Peak NOV 12 · End DEC 10 · ZHR 5 · 7% Moon at peak

UPCOMING

NOV 6–NOV 30

LeonidsStart NOV 6 · Peak NOV 17 · End NOV 30 · ZHR 15 · 52% Moon at peak

UPCOMING

Experimental local observing estimate. Weather values come from the hourly forecast already used on this page. Moon position and astronomical darkness are calculated locally from time and coordinates. Meteor-shower ZHR describes ideal conditions and is not the number of meteors a person should expect to see locally.

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Forecast data for Knoxville were last refreshed today at 8:06 PM. The current forecast period extends through 24/09/2026 at 6:00 PM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.