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Current weather in Knoxville is broken clouds.

Where can I find the hourly weather forecast for Knoxville?

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 · 2:55 AM

Knoxville Weather & Hourly Forecast

United States · Tennessee · 37920

71°F

Mostly cloudy night

Feels like: 77°F

💧 Humidity 93% 🌡 Pressure 29.94 inHg 💨 Wind 2 mph 👁 Visibility 10.3 mi ☁ Clouds 92% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Knoxville

Today

3:00 AM

Mostly cloudy night

71° 💧 0.005 in 💨 2 mph H 93%29.94 inHg

6:00 AM

Clear night

70° 💧 0.001 in 💨 3 mph H 97%29.97 inHg

9:00 AM

Partly cloudy

73° 💧 0.007 in 💨 2 mph H 90%30.03 inHg

12:00 PM

Mostly cloudy

81° 💧 0.006 in 💨 2 mph H 70%30.03 inHg

3:00 PM

Light rain

85° 💧 0.012 in 💨 4 mph H 62%30.00 inHg

6:00 PM

Light rain

78° 💧 0.054 in 💨 5 mph H 81%30.00 inHg

9:00 PM

Mostly clear night

75° 💧 None 💨 2 mph H 93%30.06 inHg

Tomorrow

12:00 AM

Mostly clear night

73° 💧 None 💨 2 mph H 93%30.12 inHg

3:00 AM

Mostly clear night

70° 💧 None 💨 2 mph H 89%30.12 inHg

6:00 AM

Clear night

67° 💧 None 💨 2 mph H 93%30.15 inHg

9:00 AM

Sunny

72° 💧 None 💨 2 mph H 81%30.21 inHg

12:00 PM

Sunny

82° 💧 0.006 in 💨 1 mph H 58%30.24 inHg

3:00 PM

Mostly sunny

86° 💧 0.004 in 💨 4 mph H 48%30.15 inHg

6:00 PM

Mostly cloudy

85° 💧 None 💨 7 mph H 48%30.15 inHg

9:00 PM

Overcast night

78° 💧 None 💨 2 mph H 68%30.15 inHg

Wednesday

12:00 AM

Mostly cloudy night

75° 💧 None 💨 4 mph H 72%30.21 inHg

Today

3:00 AM

Mostly cloudy night

71° 💧 0.000 in 💨 2 mph H 93%29.94 inHg

4:00 AM

Partly cloudy night

71° 💧 0.001 in 💨 2 mph H 95%29.94 inHg

5:00 AM

Mostly clear night

70° 💧 0.003 in 💨 4 mph H 96%29.94 inHg

6:00 AM

Clear night

70° 💧 0.000 in 💨 3 mph H 97%29.97 inHg

7:00 AM

Clear night

69° 💧 0.000 in 💨 2 mph H 97%29.97 inHg

8:00 AM

Partly cloudy

70° 💧 0.001 in 💨 3 mph H 96%30.00 inHg

9:00 AM

Partly cloudy

73° 💧 0.002 in 💨 2 mph H 90%30.03 inHg

10:00 AM

Partly cloudy

76° 💧 0.004 in 💨 2 mph H 83%30.03 inHg

11:00 AM

Mostly sunny

79° 💧 0.001 in 💨 1 mph H 76%30.03 inHg

12:00 PM

Mostly cloudy

81° 💧 0.001 in 💨 2 mph H 70%30.03 inHg

1:00 PM

Overcast

83° 💧 0.001 in 💨 3 mph H 65%30.03 inHg

2:00 PM

Mostly cloudy

83° 💧 0.003 in 💨 4 mph H 64%30.03 inHg

3:00 PM

Light rain

85° 💧 0.004 in 💨 4 mph H 62%30.00 inHg

4:00 PM

Overcast

86° 💧 0.001 in 💨 3 mph H 59%30.00 inHg

5:00 PM

Light rain

83° 💧 0.007 in 💨 4 mph H 64%30.00 inHg

6:00 PM

Light rain

78° 💧 0.049 in 💨 5 mph H 81%30.00 inHg

7:00 PM

Light rain

78° 💧 0.004 in 💨 1 mph H 79%30.03 inHg

8:00 PM

Partly cloudy night

76° 💧 0.000 in 💨 1 mph H 88%30.03 inHg

9:00 PM

Mostly clear night

75° 💧 None 💨 2 mph H 93%30.06 inHg

10:00 PM

Clear night

74° 💧 None 💨 3 mph H 92%30.09 inHg

11:00 PM

Clear night

74° 💧 None 💨 2 mph H 93%30.12 inHg

Tomorrow

12:00 AM

Mostly clear night

73° 💧 None 💨 2 mph H 93%30.12 inHg

1:00 AM

Partly cloudy night

72° 💧 None 💨 2 mph H 92%30.12 inHg

2:00 AM

Mostly clear night

71° 💧 None 💨 2 mph H 90%30.12 inHg

3:00 AM

Mostly clear night

70° 💧 None 💨 2 mph H 89%30.12 inHg

4:00 AM

Mostly clear night

69° 💧 None 💨 1 mph H 91%30.12 inHg

5:00 AM

Mostly clear night

68° 💧 None 💨 2 mph H 92%30.15 inHg

6:00 AM

Clear night

67° 💧 None 💨 2 mph H 93%30.15 inHg

7:00 AM

Clear night

66° 💧 None 💨 2 mph H 93%30.18 inHg

8:00 AM

Sunny

68° 💧 None 💨 3 mph H 91%30.21 inHg

9:00 AM

Sunny

72° 💧 None 💨 2 mph H 81%30.21 inHg

10:00 AM

Sunny

76° 💧 None 💨 1 mph H 70%30.24 inHg

11:00 AM

Sunny

79° 💧 None 💨 0 mph H 64%30.24 inHg

12:00 PM

Sunny

82° 💧 None 💨 1 mph H 58%30.24 inHg

1:00 PM

Mostly sunny

84° 💧 0.001 in 💨 2 mph H 52%30.21 inHg

2:00 PM

Light rain

86° 💧 0.005 in 💨 3 mph H 48%30.18 inHg

3:00 PM

Mostly sunny

86° 💧 0.002 in 💨 4 mph H 48%30.15 inHg

4:00 PM

Partly cloudy

86° 💧 0.001 in 💨 6 mph H 47%30.15 inHg

5:00 PM

Partly cloudy

86° 💧 None 💨 7 mph H 47%30.15 inHg

6:00 PM

Mostly cloudy

85° 💧 None 💨 7 mph H 48%30.15 inHg

7:00 PM

Overcast

83° 💧 None 💨 4 mph H 55%30.15 inHg

8:00 PM

Overcast night

79° 💧 None 💨 3 mph H 63%30.15 inHg

9:00 PM

Overcast night

78° 💧 None 💨 2 mph H 68%30.15 inHg

10:00 PM

Overcast night

77° 💧 None 💨 2 mph H 72%30.18 inHg

11:00 PM

Overcast night

76° 💧 None 💨 5 mph H 72%30.21 inHg

Wednesday

12:00 AM

Mostly cloudy night

75° 💧 None 💨 4 mph H 72%30.21 inHg

1:00 AM

Overcast night

74° 💧 None 💨 3 mph H 75%30.21 inHg

2:00 AM

Mostly cloudy night

72° 💧 None 💨 4 mph H 78%30.21 inHg

3:00 AM

Mostly clear night

71° 💧 None 💨 3 mph H 81%30.21 inHg

4:00 AM

Clear night

70° 💧 None 💨 2 mph H 81%30.21 inHg

5:00 AM

Mostly clear night

70° 💧 None 💨 2 mph H 81%30.21 inHg

6:00 AM

Mostly cloudy night

69° 💧 None 💨 2 mph H 82%30.21 inHg

7:00 AM

Mostly cloudy night

68° 💧 None 💨 2 mph H 84%30.24 inHg

8:00 AM

Partly cloudy

70° 💧 None 💨 2 mph H 83%30.27 inHg

9:00 AM

Mostly sunny

74° 💧 None 💨 2 mph H 71%30.27 inHg

10:00 AM

Partly cloudy

77° 💧 None 💨 3 mph H 60%30.27 inHg

11:00 AM

Mostly cloudy

80° 💧 None 💨 3 mph H 54%30.27 inHg

12:00 PM

Partly cloudy

83° 💧 None 💨 3 mph H 48%30.27 inHg

1:00 PM

Mostly cloudy

86° 💧 None 💨 3 mph H 45%30.24 inHg

2:00 PM

Partly cloudy

87° 💧 None 💨 4 mph H 43%30.18 inHg

3:00 PM

Partly cloudy

89° 💧 None 💨 3 mph H 42%30.15 inHg

4:00 PM

Partly cloudy

89° 💧 None 💨 4 mph H 41%30.12 inHg

5:00 PM

Mostly sunny

89° 💧 None 💨 4 mph H 41%30.09 inHg

6:00 PM

Mostly sunny

88° 💧 None 💨 4 mph H 42%30.09 inHg

7:00 PM

Sunny

86° 💧 None 💨 3 mph H 49%30.09 inHg

8:00 PM

Clear night

83° 💧 None 💨 2 mph H 56%30.06 inHg

11:00 PM

Clear night

78° 💧 None 💨 5 mph H 66%30.09 inHg

Thursday

2:00 AM

Clear night

75° 💧 None 💨 6 mph H 75%30.09 inHg

5:00 AM

Mostly clear night

73° 💧 None 💨 7 mph H 79%30.06 inHg

8:00 AM

Sunny

73° 💧 None 💨 6 mph H 82%30.09 inHg

11:00 AM

Partly cloudy

84° 💧 None 💨 10 mph H 61%30.09 inHg

2:00 PM

Sunny

89° 💧 None 💨 8 mph H 48%30.00 inHg

5:00 PM

Mostly sunny

91° 💧 None 💨 9 mph H 43%29.88 inHg

8:00 PM

Moderate rain

82° 💧 None 💨 4 mph H 61%29.91 inHg

11:00 PM

Light rain

75° 💧 None 💨 2 mph H 92%29.97 inHg

Friday

2:00 AM

Mostly clear night

73° 💧 None 💨 2 mph H 94%29.94 inHg

5:00 AM

Mostly cloudy night

71° 💧 None 💨 3 mph H 98%29.94 inHg

8:00 AM

Overcast

72° 💧 None 💨 1 mph H 97%29.97 inHg

11:00 AM

Mostly cloudy

80° 💧 None 💨 2 mph H 70%29.97 inHg

2:00 PM

Light rain

86° 💧 None 💨 2 mph H 58%29.91 inHg

5:00 PM

Moderate rain

80° 💧 None 💨 5 mph H 78%29.88 inHg

8:00 PM

Partly cloudy night

75° 💧 None 💨 2 mph H 90%29.91 inHg

11:00 PM

Overcast night

73° 💧 None 💨 2 mph H 98%29.91 inHg

Saturday

2:00 AM

Overcast night

72° 💧 None 💨 1 mph H 100%29.91 inHg

5:00 AM

Mostly cloudy night

72° 💧 None 💨 3 mph H 96%29.94 inHg

8:00 AM

Partly cloudy

72° 💧 None 💨 4 mph H 97%29.97 inHg

11:00 AM

Light rain

79° 💧 None 💨 6 mph H 74%30.00 inHg

2:00 PM

Overcast

86° 💧 None 💨 6 mph H 60%29.94 inHg

8:00 PM

Mostly clear night

82° 💧 None 💨 3 mph H 72%29.97 inHg

Sunday

2:00 AM

Partly cloudy night

77° 💧 None 💨 2 mph H 86%29.97 inHg

8:00 AM

Overcast

71° 💧 None 💨 1 mph H 99%30.03 inHg

2:00 PM

Overcast

71° 💧 None 💨 3 mph H 98%30.09 inHg

8:00 PM

Clear night

85° 💧 None 💨 3 mph H 61%30.09 inHg

Monday

2:00 AM

Clear night

80° 💧 None 💨 4 mph H 70%30.03 inHg

8:00 AM

Sunny

70° 💧 None 💨 3 mph H 91%30.09 inHg

2:00 PM

Partly cloudy

69° 💧 None 💨 3 mph H 97%30.15 inHg

8:00 PM

Clear night

88° 💧 None 💨 1 mph H 47%30.09 inHg

Tuesday

2:00 AM

Clear night

81° 💧 None 💨 3 mph H 57%30.03 inHg

8:00 AM

Sunny

75° 💧 None 💨 3 mph H 84%30.06 inHg

2:00 PM

Mostly sunny

73° 💧 None 💨 3 mph H 92%30.15 inHg

8:00 PM

Light rain

90° 💧 None 💨 4 mph H 51%30.12 inHg

Wednesday

2:00 AM

Mostly clear night

82° 💧 None 💨 7 mph H 71%30.09 inHg

8:00 AM

Sunny

76° 💧 None 💨 3 mph H 86%30.18 inHg

2:00 PM

Sunny

75° 💧 None 💨 4 mph H 91%30.21 inHg

8:00 PM

Clear night

92° 💧 None 💨 2 mph H 48%30.18 inHg

Thursday

2:00 AM

Mostly clear night

82° 💧 None 💨 1 mph H 73%30.18 inHg

8:00 AM

Sunny

75° 💧 None 💨 1 mph H 88%30.18 inHg

2:00 PM

Sunny

74° 💧 None 💨 2 mph H 92%30.21 inHg

8:00 PM

Mostly clear night

93° 💧 None 💨 4 mph H 43%30.15 inHg

Friday

2:00 AM

Mostly clear night

82° 💧 None 💨 2 mph H 65%30.06 inHg

8:00 AM

Sunny

76° 💧 None 💨 7 mph H 70%30.06 inHg

2:00 PM

Sunny

70° 💧 None 💨 6 mph H 72%30.06 inHg

8:00 PM

Clear night

85° 💧 None 💨 10 mph H 29%30.00 inHg

Saturday

2:00 AM

Clear night

76° 💧 None 💨 12 mph H 34%29.97 inHg

8:00 AM

Sunny

67° 💧 None 💨 10 mph H 48%30.03 inHg

2:00 PM

Sunny

58° 💧 None 💨 14 mph H 61%30.12 inHg

8:00 PM

Mostly clear night

67° 💧 None 💨 11 mph H 34%30.12 inHg

Sunday

2:00 AM

Clear night

64° 💧 None 💨 11 mph H 34%30.09 inHg

8:00 AM

Sunny

56° 💧 None 💨 10 mph H 47%30.15 inHg

2:00 PM

Sunny

51° 💧 None 💨 7 mph H 59%30.21 inHg

8:00 PM

Clear night

71° 💧 None 💨 6 mph H 24%30.18 inHg

Monday

2:00 AM

Clear night

68° 💧 None 💨 3 mph H 36%30.12 inHg

8:00 AM

Sunny

60° 💧 None 💨 1 mph H 61%30.18 inHg

2:00 PM

Sunny

57° 💧 None 💨 6 mph H 74%30.27 inHg

In Knoxville and, more broadly, across the state of Tennessee: Clear skies will persist through the evening, with temperatures remaining hot between 88 and 92 degrees Fahrenheit. Light northeast winds will blow at around 7 mph, with occasional gusts reaching up to 21 mph. No precipitation is expected during this time, so the night will be dry and warm. Make sure to stay hydrated if you're spending time outdoors, and be mindful of the gusty winds, especially if you’re engaging in outdoor activities or driving. conditions will stay stable overnight with clear skies and warm temperatures.

15-Day Weather Outlook for Knoxville

TomorrowTomorrow

Mostly sunny 88°/67° 💧 None 💨 4 mph

Wednesday, Sep 9Wed Sep 9

Mostly sunny 89°/70° 💧 0.165 in 💨 6 mph

Thursday, Sep 10Thu Sep 10

Mostly sunny 91°/73° 💧 0.003 in 💨 10 mph

Friday, Sep 11Fri Sep 11

Moderate rain 86°/71° 💧 0.195 in 💨 5 mph

Saturday, Sep 12Sat Sep 12

Light rain 86°/72° 💧 0.075 in 💨 6 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 82°/71° 💧 0.388 in 💨 3 mph

Monday, Sep 14Mon Sep 14

Partly cloudy 85°/69° 💧 0.004 in 💨 4 mph

Tuesday, Sep 15Tue Sep 15

Mostly sunny 88°/73° 💧 0.000 in 💨 3 mph

Wednesday, Sep 16Wed Sep 16

Light rain 90°/75° 💧 0.017 in 💨 7 mph

Thursday, Sep 17Thu Sep 17

Mostly sunny 92°/74° 💧 0.069 in 💨 2 mph

Friday, Sep 18Fri Sep 18

Mostly sunny 93°/70° 💧 0.029 in 💨 7 mph

Saturday, Sep 19Sat Sep 19

Sunny 85°/58° 💧 None 💨 14 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 67°/51° 💧 None 💨 11 mph

Monday, Sep 21Mon Sep 21

Sunny 71°/57° 💧 None 💨 6 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 3:00 AM

PM2.5 Fine particles Good 3,7µg/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 10,0µg/m³

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

O₃ Ozone Good 32,5µg/m³

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

NO₂ Nitrogen dioxide Good 2,9µg/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 7,5High 😊Good

Tomorrow UV 8,1Very high 🙂Fair

Wednesday UV 8,3Very high 🙂Fair

Thursday UV 7,8High 🙂Fair

Friday UV 7,0High 😊Good

Saturday UV 8,0Very high —Unavailable

Sunday UV 8,0Very high —Unavailable

Hourly UV index today

7:00 AMUV 0,0 8:00 AMUV 0,2 9:00 AMUV 0,9 10:00 AMUV 2,3 11:00 AMUV 4,2 12:00 PMUV 6,2 1:00 PMUV 7,3 2:00 PMUV 7,5 3:00 PMUV 6,7 4:00 PMUV 4,6 5:00 PMUV 2,2 6:00 PMUV 0,7

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: 6:00 AM–7:00 AM.

88/100Best-hour score

BEST TIME TONIGHT 6:00 AM–7:00 AM Astronomical darkness: 9:24 PM–5:44 AM

☁ Cloud cover 6% Real hourly forecast for the best viewing hour.

☾ Moonlight 21% Waning Crescent · Moon about 31° above the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 85° high at the best hour.

✦ Estimated visible meteors 1–4/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min73%

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

SEP 5–SEP 21

September ε-PerseidsStart SEP 5 · Peak SEP 9 · End SEP 21 · ZHR 8 · 6% Moon at peak

ACTIVE NOW

SEP 20–NOV 20

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

UPCOMING

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

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.

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Knoxville were last refreshed today at 2:43 AM. The current forecast period extends through 09/09/2026 at 12:00 AM. 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.