What is the weather in Knoxville right now?

Current weather in Knoxville is clear sky.

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 · 12:13 AM

Knoxville Weather & Hourly Forecast

United States · Arkansas · 72845

84°F

Clear night

Feels like: 89°F

💧 Humidity 67% 🌡 Pressure 29.91 inHg 💨 Wind 2 mph 👁 Visibility 6.2 mi ☁ Clouds 4% ☀️ UV index 0.0 · Low 🌅 Sunrise 6:47 AM 🌇 Sunset 7:38 PM

Hourly Forecast for Knoxville

Today

1:00 AM

Clear night

83° 💧 None 💨 2 mph H 68%29.91 inHg

4:00 AM

Clear night

78° 💧 None 💨 2 mph H 71%29.94 inHg

7:00 AM

Sunny

74° 💧 None 💨 2 mph H 76%29.97 inHg

10:00 AM

Sunny

91° 💧 None 💨 4 mph H 50%29.97 inHg

1:00 PM

Sunny

98° 💧 None 💨 5 mph H 34%29.94 inHg

4:00 PM

Mostly cloudy

98° 💧 None 💨 7 mph H 38%29.88 inHg

7:00 PM

Mostly cloudy

93° 💧 None 💨 3 mph H 49%29.88 inHg

10:00 PM

Clear night

85° 💧 None 💨 2 mph H 60%29.91 inHg

Tomorrow

1:00 AM

Clear night

82° 💧 None 💨 2 mph H 65%29.91 inHg

4:00 AM

Clear night

77° 💧 None 💨 1 mph H 69%29.91 inHg

7:00 AM

Sunny

77° 💧 None 💨 2 mph H 73%29.94 inHg

10:00 AM

Sunny

91° 💧 None 💨 1 mph H 45%29.94 inHg

1:00 PM

Sunny

100° 💧 None 💨 4 mph H 31%29.91 inHg

4:00 PM

Mostly sunny

103° 💧 None 💨 5 mph H 24%29.85 inHg

7:00 PM

Partly cloudy

92° 💧 None 💨 3 mph H 41%29.83 inHg

10:00 PM

Clear night

82° 💧 None 💨 2 mph H 53%29.88 inHg

Today

1:00 AM

Clear night

83° 💧 None 💨 2 mph H 68%29.91 inHg

2:00 AM

Clear night

82° 💧 None 💨 2 mph H 68%29.91 inHg

3:00 AM

Clear night

80° 💧 None 💨 2 mph H 69%29.91 inHg

4:00 AM

Clear night

78° 💧 None 💨 2 mph H 71%29.94 inHg

5:00 AM

Clear night

75° 💧 None 💨 2 mph H 74%29.94 inHg

6:00 AM

Clear night

74° 💧 None 💨 2 mph H 75%29.94 inHg

7:00 AM

Sunny

74° 💧 None 💨 2 mph H 76%29.97 inHg

8:00 AM

Sunny

79° 💧 None 💨 2 mph H 69%29.97 inHg

9:00 AM

Sunny

86° 💧 None 💨 3 mph H 59%29.97 inHg

10:00 AM

Sunny

91° 💧 None 💨 4 mph H 50%29.97 inHg

11:00 AM

Sunny

94° 💧 None 💨 4 mph H 44%30.00 inHg

12:00 PM

Sunny

96° 💧 None 💨 5 mph H 38%29.97 inHg

1:00 PM

Sunny

98° 💧 None 💨 5 mph H 34%29.94 inHg

2:00 PM

Mostly cloudy

98° 💧 None 💨 5 mph H 34%29.91 inHg

3:00 PM

Overcast

96° 💧 None 💨 6 mph H 38%29.91 inHg

4:00 PM

Mostly cloudy

98° 💧 None 💨 7 mph H 38%29.88 inHg

5:00 PM

Mostly cloudy

97° 💧 None 💨 7 mph H 37%29.88 inHg

6:00 PM

Mostly cloudy

96° 💧 None 💨 5 mph H 40%29.88 inHg

7:00 PM

Mostly cloudy

93° 💧 None 💨 3 mph H 49%29.88 inHg

8:00 PM

Clear night

89° 💧 None 💨 1 mph H 55%29.88 inHg

9:00 PM

Clear night

86° 💧 None 💨 2 mph H 58%29.91 inHg

10:00 PM

Clear night

85° 💧 None 💨 2 mph H 60%29.91 inHg

11:00 PM

Clear night

84° 💧 None 💨 1 mph H 62%29.91 inHg

Tomorrow

12:00 AM

Clear night

83° 💧 None 💨 2 mph H 64%29.91 inHg

1:00 AM

Clear night

82° 💧 None 💨 2 mph H 65%29.91 inHg

2:00 AM

Clear night

80° 💧 None 💨 2 mph H 66%29.91 inHg

3:00 AM

Clear night

78° 💧 None 💨 2 mph H 67%29.91 inHg

4:00 AM

Clear night

77° 💧 None 💨 1 mph H 69%29.91 inHg

5:00 AM

Clear night

76° 💧 None 💨 1 mph H 71%29.91 inHg

6:00 AM

Clear night

76° 💧 None 💨 2 mph H 72%29.91 inHg

7:00 AM

Sunny

77° 💧 None 💨 2 mph H 73%29.94 inHg

8:00 AM

Sunny

80° 💧 None 💨 2 mph H 67%29.94 inHg

9:00 AM

Sunny

87° 💧 None 💨 1 mph H 55%29.94 inHg

10:00 AM

Sunny

91° 💧 None 💨 1 mph H 45%29.94 inHg

11:00 AM

Sunny

96° 💧 None 💨 1 mph H 38%29.94 inHg

12:00 PM

Sunny

98° 💧 None 💨 3 mph H 34%29.94 inHg

1:00 PM

Sunny

100° 💧 None 💨 4 mph H 31%29.91 inHg

2:00 PM

Sunny

102° 💧 None 💨 5 mph H 28%29.88 inHg

3:00 PM

Sunny

103° 💧 None 💨 6 mph H 25%29.85 inHg

4:00 PM

Mostly sunny

103° 💧 None 💨 5 mph H 24%29.85 inHg

5:00 PM

Mostly sunny

102° 💧 None 💨 6 mph H 25%29.83 inHg

6:00 PM

Partly cloudy

100° 💧 None 💨 5 mph H 29%29.83 inHg

7:00 PM

Partly cloudy

92° 💧 None 💨 3 mph H 41%29.83 inHg

8:00 PM

Mostly clear night

86° 💧 None 💨 3 mph H 47%29.85 inHg

9:00 PM

Mostly clear night

84° 💧 None 💨 2 mph H 50%29.85 inHg

10:00 PM

Clear night

82° 💧 None 💨 2 mph H 53%29.88 inHg

11:00 PM

Clear night

81° 💧 None 💨 3 mph H 56%29.88 inHg

Sunday

12:00 AM

Clear night

80° 💧 None 💨 2 mph H 58%29.88 inHg

1:00 AM

Clear night

79° 💧 None 💨 2 mph H 60%29.88 inHg

2:00 AM

Clear night

78° 💧 None 💨 2 mph H 61%29.88 inHg

3:00 AM

Clear night

78° 💧 None 💨 2 mph H 62%29.88 inHg

4:00 AM

Clear night

78° 💧 None 💨 2 mph H 63%29.88 inHg

5:00 AM

Clear night

77° 💧 None 💨 2 mph H 64%29.88 inHg

6:00 AM

Clear night

77° 💧 None 💨 3 mph H 65%29.91 inHg

7:00 AM

Sunny

76° 💧 None 💨 2 mph H 66%29.91 inHg

8:00 AM

Sunny

80° 💧 None 💨 2 mph H 63%29.94 inHg

9:00 AM

Sunny

86° 💧 None 💨 3 mph H 52%29.94 inHg

10:00 AM

Sunny

92° 💧 None 💨 3 mph H 44%29.94 inHg

11:00 AM

Sunny

97° 💧 None 💨 3 mph H 37%29.91 inHg

12:00 PM

Sunny

103° 💧 None 💨 2 mph H 30%29.91 inHg

1:00 PM

Sunny

105° 💧 None 💨 2 mph H 27%29.88 inHg

2:00 PM

Mostly sunny

105° 💧 None 💨 4 mph H 25%29.85 inHg

3:00 PM

Mostly cloudy

103° 💧 None 💨 4 mph H 27%29.85 inHg

4:00 PM

Mostly cloudy

102° 💧 None 💨 3 mph H 26%29.83 inHg

5:00 PM

Mostly cloudy

103° 💧 None 💨 4 mph H 26%29.80 inHg

6:00 PM

Mostly cloudy

99° 💧 None 💨 3 mph H 30%29.80 inHg

7:00 PM

Mostly cloudy

94° 💧 None 💨 1 mph H 38%29.83 inHg

8:00 PM

Overcast night

89° 💧 None 💨 2 mph H 43%29.83 inHg

9:00 PM

Mostly cloudy night

86° 💧 None 💨 2 mph H 49%29.85 inHg

10:00 PM

Partly cloudy night

84° 💧 None 💨 2 mph H 52%29.85 inHg

11:00 PM

Partly cloudy night

82° 💧 None 💨 2 mph H 55%29.85 inHg

Monday

12:00 AM

Partly cloudy night

81° 💧 None 💨 2 mph H 57%29.88 inHg

1:00 AM

Partly cloudy night

79° 💧 None 💨 3 mph H 63%29.88 inHg

2:00 AM

Overcast night

78° 💧 None 💨 4 mph H 64%29.88 inHg

3:00 AM

Overcast night

78° 💧 None 💨 2 mph H 62%29.88 inHg

4:00 AM

Overcast night

77° 💧 None 💨 0 mph H 61%29.88 inHg

5:00 AM

Overcast night

77° 💧 None 💨 3 mph H 61%29.91 inHg

6:00 AM

Mostly cloudy night

76° 💧 None 💨 3 mph H 61%29.91 inHg

7:00 AM

Mostly cloudy

75° 💧 None 💨 3 mph H 62%29.94 inHg

8:00 AM

Sunny

78° 💧 None 💨 3 mph H 60%29.97 inHg

9:00 AM

Sunny

84° 💧 None 💨 5 mph H 47%29.97 inHg

10:00 AM

Sunny

88° 💧 None 💨 6 mph H 42%29.97 inHg

11:00 AM

Sunny

92° 💧 None 💨 6 mph H 37%29.97 inHg

12:00 PM

Sunny

95° 💧 None 💨 6 mph H 34%29.97 inHg

1:00 PM

Sunny

99° 💧 None 💨 6 mph H 31%29.94 inHg

2:00 PM

Sunny

102° 💧 None 💨 5 mph H 28%29.91 inHg

3:00 PM

Sunny

103° 💧 None 💨 5 mph H 27%29.91 inHg

4:00 PM

Sunny

103° 💧 None 💨 6 mph H 26%29.88 inHg

5:00 PM

Sunny

102° 💧 None 💨 6 mph H 26%29.85 inHg

6:00 PM

Sunny

101° 💧 None 💨 8 mph H 28%29.85 inHg

7:00 PM

Sunny

95° 💧 None 💨 6 mph H 36%29.88 inHg

8:00 PM

Clear night

89° 💧 None 💨 5 mph H 43%29.88 inHg

9:00 PM

Clear night

86° 💧 None 💨 3 mph H 47%29.91 inHg

10:00 PM

Clear night

83° 💧 None 💨 3 mph H 52%29.94 inHg

11:00 PM

Clear night

81° 💧 None 💨 1 mph H 53%29.97 inHg

In Knoxville and, more broadly, across the state of Arkansas: The evening will feature a mix of sun and clouds, with very hot temperatures ranging from 91 to 95 degrees Fahrenheit. Light south winds will continue, with speeds up to 4 mph and gusts reaching 6 mph. No precipitation is expected during this time, so it will remain dry through the evening hours. It will stay quite warm, so if you plan to be outdoors, consider staying hydrated and taking precautions against the heat. Temperatures are likely to remain steady through the night, with minimal wind activity. Overall, expect a warm and mostly dry evening ahead.

15-Day Weather Outlook for Knoxville

Friday, Sep 4Fri Sep 4

Sunny 98°/74° 💧 None 💨 7 mph

TomorrowTomorrow

Sunny 103°/76° 💧 None 💨 6 mph

Sunday, Sep 6Sun Sep 6

Sunny 105°/76° 💧 None 💨 4 mph

Monday, Sep 7Mon Sep 7

Sunny 103°/75° 💧 None 💨 6 mph

Tuesday, Sep 8Tue Sep 8

Sunny 105°/74° 💧 None 💨 6 mph

Wednesday, Sep 9Wed Sep 9

Sunny 104°/76° 💧 None 💨 5 mph

Thursday, Sep 10Thu Sep 10

Sunny 103°/77° 💧 None 💨 6 mph

Friday, Sep 11Fri Sep 11

Sunny 105°/76° 💧 None 💨 8 mph

Saturday, Sep 12Sat Sep 12

Mostly sunny 105°/76° 💧 None 💨 9 mph

Sunday, Sep 13Sun Sep 13

Mostly sunny 105°/76° 💧 None 💨 9 mph

Monday, Sep 14Mon Sep 14

Sunny 105°/76° 💧 None 💨 8 mph

Tuesday, Sep 15Tue Sep 15

Sunny 107°/75° 💧 None 💨 6 mph

Wednesday, Sep 16Wed Sep 16

Light rain 107°/76° 💧 0.02 in 💨 3 mph

Thursday, Sep 17Thu Sep 17

Light rain 107°/74° 💧 0.01 in 💨 5 mph

Friday, Sep 18Fri Sep 18

Light rain 107°/74° 💧 0.01 in 💨 9 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 1:00 AM

PM2.5 Fine particles Good 2,0µg/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 4,3µg/m³

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

O₃ Ozone Good 35,8µg/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 9,3Very high —Unavailable

Tomorrow UV 9,0Very high 😊Good

Saturday UV 8,9Very high 🙂Fair

Sunday UV 8,7Very high 🙂Fair

Monday UV 9,0Very high 🙂Fair

Tuesday UV 9,0Very high —Unavailable

Wednesday UV 9,0Very high —Unavailable

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

Very high UV risk

Use SPF 50+ sunscreen, a hat and sunglasses. Seek shade and limit exposure around midday.

Good air quality

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

Stay hydrated

Drink water regularly, especially during physical activity or prolonged sun exposure.

Best in the morning or late in the day

For walking, running or cycling, prefer the early morning or late afternoon.

WIND OUTLOOK

Hourly Wind Forecast for Knoxville

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 3.64 Population: 663

DISCOVER WEATHER NEARBY Weather in other cities

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Forecast data for Knoxville were last refreshed today at 11:33 PM. The current forecast period extends through 05/09/2026 at 10:00 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.