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Current weather in Loudon is few clouds.

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

Is the weather forecast for Loudon updated regularly?

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

Now · 6:38 AM

Loudon Weather & Hourly Forecast

United States · Tennessee · 37774

73°F

Mostly clear night

Feels like: 74°F

💧 Humidity 96% 🌡 Pressure 30.00 inHg 💨 Wind 1 mph 👁 Visibility 6.2 mi ☁ Clouds 16% ☀️ UV index 0.0 · Low 🌅 Sunrise 7:11 AM 🌇 Sunset 8:01 PM

Hourly Forecast for Loudon

Today

7:00 AM

Mostly clear night

73° 💧 None 💨 1 mph H 96%30.00 inHg

10:00 AM

Sunny

78° 💧 None 💨 1 mph H 82%30.03 inHg

1:00 PM

Sunny

94° 💧 None 💨 4 mph H 49%30.03 inHg

4:00 PM

Sunny

97° 💧 None 💨 3 mph H 41%29.94 inHg

7:00 PM

Sunny

88° 💧 0.01 in 💨 9 mph H 67%29.94 inHg

10:00 PM

Clear night

78° 💧 None 💨 1 mph H 79%29.97 inHg

Tomorrow

1:00 AM

Partly cloudy night

75° 💧 None 💨 1 mph H 82%29.94 inHg

4:00 AM

Clear night

73° 💧 None 💨 2 mph H 85%29.94 inHg

7:00 AM

Mostly clear night

72° 💧 0.01 in 💨 1 mph H 90%29.94 inHg

10:00 AM

Sunny

83° 💧 None 💨 0 mph H 73%29.97 inHg

1:00 PM

Sunny

94° 💧 None 💨 2 mph H 47%29.91 inHg

4:00 PM

Mostly sunny

96° 💧 0.06 in 💨 3 mph H 36%29.85 inHg

7:00 PM

Moderate rain

82° 💧 0.12 in 💨 8 mph H 89%29.91 inHg

10:00 PM

Light rain

73° 💧 0.04 in 💨 1 mph H 92%29.88 inHg

Sunday

1:00 AM

Mostly cloudy night

71° 💧 None 💨 6 mph H 97%29.91 inHg

4:00 AM

Mostly cloudy night

69° 💧 None 💨 3 mph H 98%29.85 inHg

Today

7:00 AM

Mostly clear night

73° 💧 None 💨 1 mph H 96%30.00 inHg

8:00 AM

Mostly sunny

73° 💧 None 💨 2 mph H 94%30.00 inHg

9:00 AM

Mostly sunny

75° 💧 None 💨 2 mph H 90%30.00 inHg

10:00 AM

Sunny

78° 💧 None 💨 1 mph H 82%30.03 inHg

11:00 AM

Sunny

84° 💧 None 💨 3 mph H 72%30.06 inHg

12:00 PM

Sunny

91° 💧 None 💨 4 mph H 53%30.03 inHg

1:00 PM

Sunny

94° 💧 None 💨 4 mph H 49%30.03 inHg

2:00 PM

Sunny

96° 💧 None 💨 3 mph H 45%30.00 inHg

3:00 PM

Sunny

98° 💧 None 💨 2 mph H 42%29.97 inHg

4:00 PM

Sunny

97° 💧 None 💨 3 mph H 41%29.94 inHg

5:00 PM

Sunny

97° 💧 None 💨 4 mph H 40%29.91 inHg

6:00 PM

Sunny

93° 💧 None 💨 4 mph H 46%29.91 inHg

7:00 PM

Sunny

88° 💧 None 💨 9 mph H 67%29.94 inHg

8:00 PM

Sunny

82° 💧 None 💨 2 mph H 78%29.94 inHg

9:00 PM

Light rain

80° 💧 0.01 in 💨 2 mph H 78%29.97 inHg

10:00 PM

Clear night

78° 💧 None 💨 1 mph H 79%29.97 inHg

11:00 PM

Clear night

76° 💧 None 💨 1 mph H 79%29.94 inHg

Tomorrow

12:00 AM

Mostly clear night

75° 💧 None 💨 1 mph H 81%29.94 inHg

1:00 AM

Partly cloudy night

75° 💧 None 💨 1 mph H 82%29.94 inHg

2:00 AM

Partly cloudy night

74° 💧 None 💨 1 mph H 83%29.94 inHg

3:00 AM

Clear night

74° 💧 None 💨 2 mph H 84%29.94 inHg

4:00 AM

Clear night

73° 💧 None 💨 2 mph H 85%29.94 inHg

5:00 AM

Clear night

72° 💧 None 💨 1 mph H 87%29.94 inHg

6:00 AM

Clear night

72° 💧 None 💨 1 mph H 88%29.94 inHg

7:00 AM

Mostly clear night

72° 💧 None 💨 1 mph H 90%29.94 inHg

8:00 AM

Mostly sunny

74° 💧 None 💨 1 mph H 88%29.97 inHg

9:00 AM

Light rain

78° 💧 0.01 in 💨 0 mph H 83%29.97 inHg

10:00 AM

Sunny

83° 💧 None 💨 0 mph H 73%29.97 inHg

11:00 AM

Sunny

87° 💧 None 💨 1 mph H 62%29.97 inHg

12:00 PM

Sunny

92° 💧 None 💨 1 mph H 54%29.94 inHg

1:00 PM

Sunny

94° 💧 None 💨 2 mph H 47%29.91 inHg

2:00 PM

Sunny

95° 💧 None 💨 3 mph H 42%29.91 inHg

3:00 PM

Sunny

97° 💧 None 💨 1 mph H 38%29.88 inHg

4:00 PM

Mostly sunny

96° 💧 None 💨 3 mph H 36%29.85 inHg

5:00 PM

Light rain

89° 💧 0.01 in 💨 11 mph H 52%29.83 inHg

6:00 PM

Moderate rain

85° 💧 0.04 in 💨 4 mph H 79%29.88 inHg

7:00 PM

Moderate rain

82° 💧 0.08 in 💨 8 mph H 89%29.91 inHg

8:00 PM

Light rain

77° 💧 0.03 in 💨 6 mph H 93%29.88 inHg

9:00 PM

Light rain

73° 💧 0.02 in 💨 4 mph H 95%29.91 inHg

10:00 PM

Light rain

73° 💧 0.01 in 💨 1 mph H 92%29.88 inHg

11:00 PM

Partly cloudy night

72° 💧 None 💨 2 mph H 92%29.88 inHg

Sunday

12:00 AM

Light rain

71° 💧 0.03 in 💨 6 mph H 95%29.94 inHg

1:00 AM

Mostly cloudy night

71° 💧 None 💨 6 mph H 97%29.91 inHg

2:00 AM

Mostly cloudy night

71° 💧 None 💨 6 mph H 97%29.91 inHg

3:00 AM

Overcast night

70° 💧 None 💨 5 mph H 98%29.88 inHg

4:00 AM

Mostly cloudy night

69° 💧 None 💨 3 mph H 98%29.85 inHg

5:00 AM

Mostly cloudy night

69° 💧 None 💨 2 mph H 96%29.85 inHg

6:00 AM

Mostly cloudy night

69° 💧 None 💨 3 mph H 96%29.85 inHg

7:00 AM

Mostly cloudy night

69° 💧 None 💨 3 mph H 96%29.88 inHg

8:00 AM

Mostly cloudy

69° 💧 None 💨 4 mph H 96%29.88 inHg

9:00 AM

Sunny

73° 💧 None 💨 5 mph H 90%29.91 inHg

10:00 AM

Sunny

76° 💧 None 💨 5 mph H 79%29.91 inHg

11:00 AM

Sunny

81° 💧 None 💨 5 mph H 65%29.91 inHg

12:00 PM

Sunny

85° 💧 None 💨 4 mph H 56%29.91 inHg

1:00 PM

Sunny

89° 💧 None 💨 4 mph H 51%29.88 inHg

2:00 PM

Sunny

91° 💧 None 💨 4 mph H 48%29.85 inHg

3:00 PM

Sunny

92° 💧 None 💨 3 mph H 46%29.85 inHg

4:00 PM

Sunny

93° 💧 None 💨 2 mph H 42%29.83 inHg

5:00 PM

Sunny

93° 💧 None 💨 4 mph H 40%29.80 inHg

6:00 PM

Mostly sunny

90° 💧 None 💨 8 mph H 49%29.83 inHg

7:00 PM

Mostly sunny

85° 💧 None 💨 7 mph H 60%29.83 inHg

8:00 PM

Mostly clear night

81° 💧 None 💨 9 mph H 65%29.83 inHg

9:00 PM

Mostly cloudy night

79° 💧 None 💨 9 mph H 71%29.85 inHg

10:00 PM

Partly cloudy night

78° 💧 None 💨 8 mph H 74%29.88 inHg

11:00 PM

Partly cloudy night

76° 💧 None 💨 7 mph H 77%29.88 inHg

Monday

12:00 AM

Partly cloudy night

75° 💧 None 💨 7 mph H 78%29.91 inHg

1:00 AM

Partly cloudy night

73° 💧 None 💨 6 mph H 81%29.91 inHg

2:00 AM

Partly cloudy night

71° 💧 None 💨 2 mph H 86%29.91 inHg

3:00 AM

Clear night

70° 💧 None 💨 3 mph H 88%29.91 inHg

4:00 AM

Clear night

69° 💧 None 💨 3 mph H 90%29.91 inHg

5:00 AM

Clear night

69° 💧 None 💨 3 mph H 92%29.94 inHg

6:00 AM

Clear night

68° 💧 None 💨 3 mph H 92%29.94 inHg

7:00 AM

Clear night

68° 💧 None 💨 2 mph H 93%29.97 inHg

8:00 AM

Sunny

69° 💧 None 💨 4 mph H 89%30.00 inHg

9:00 AM

Partly cloudy

74° 💧 None 💨 3 mph H 79%30.03 inHg

10:00 AM

Mostly cloudy

76° 💧 None 💨 4 mph H 74%30.03 inHg

11:00 AM

Mostly cloudy

76° 💧 None 💨 2 mph H 74%30.03 inHg

12:00 PM

Mostly cloudy

78° 💧 None 💨 1 mph H 71%30.03 inHg

1:00 PM

Mostly cloudy

81° 💧 None 💨 2 mph H 66%30.03 inHg

2:00 PM

Mostly cloudy

84° 💧 None 💨 2 mph H 60%30.00 inHg

3:00 PM

Mostly sunny

88° 💧 None 💨 0 mph H 52%30.00 inHg

4:00 PM

Light rain

87° 💧 0.02 in 💨 6 mph H 55%30.00 inHg

5:00 PM

Light rain

84° 💧 0.01 in 💨 6 mph H 63%30.00 inHg

6:00 PM

Light rain

80° 💧 0.01 in 💨 3 mph H 71%30.00 inHg

7:00 PM

Mostly cloudy

78° 💧 None 💨 1 mph H 73%30.03 inHg

8:00 PM

Mostly cloudy night

76° 💧 None 💨 4 mph H 75%30.03 inHg

9:00 PM

Overcast night

75° 💧 None 💨 5 mph H 80%30.06 inHg

10:00 PM

Mostly cloudy night

73° 💧 None 💨 4 mph H 83%30.09 inHg

11:00 PM

Mostly cloudy night

72° 💧 None 💨 2 mph H 85%30.09 inHg

Tuesday

12:00 AM

Mostly cloudy night

72° 💧 None 💨 2 mph H 86%30.09 inHg

1:00 AM

Mostly cloudy night

72° 💧 None 💨 3 mph H 85%30.09 inHg

2:00 AM

Mostly cloudy night

72° 💧 None 💨 1 mph H 85%30.09 inHg

3:00 AM

Overcast night

72° 💧 None 💨 1 mph H 84%30.09 inHg

4:00 AM

Overcast night

71° 💧 None 💨 2 mph H 87%30.12 inHg

5:00 AM

Mostly cloudy night

69° 💧 None 💨 2 mph H 91%30.12 inHg

6:00 AM

Mostly cloudy night

68° 💧 None 💨 1 mph H 93%30.12 inHg

In Loudon and, more broadly, across the state of Tennessee: The evening will be mostly cloudy with temperatures ranging from 81 to 84 degrees Fahrenheit. A chance of rain remains, with some areas possibly seeing around 0.26 inches of accumulation. The likelihood of rain is high, with the maximum probability approaching 100%. Winds will be light, coming from the south at around 4 mph, with gusts up to 3 mph. Expect conditions to stay mild to warm as the night progresses, though scattered showers may briefly dampen outdoor plans. No significant wind or temperature changes are anticipated during the upcoming hours.

15-Day Weather Outlook for Loudon

TomorrowTomorrow

Moderate rain 97°/72° 💧 0.20 in 💨 11 mph

Sunday, Sep 6Sun Sep 6

Light rain 93°/69° 💧 0.03 in 💨 9 mph

Monday, Sep 7Mon Sep 7

Light rain 84°/68° 💧 0.04 in 💨 7 mph

Tuesday, Sep 8Tue Sep 8

Mostly cloudy 87°/69° 💧 None 💨 3 mph

Wednesday, Sep 9Wed Sep 9

Sunny 91°/69° 💧 None 💨 6 mph

Thursday, Sep 10Thu Sep 10

Overcast 96°/70° 💧 None 💨 8 mph

Friday, Sep 11Fri Sep 11

Sunny 95°/67° 💧 None 💨 4 mph

Saturday, Sep 12Sat Sep 12

Moderate rain 91°/71° 💧 0.16 in 💨 7 mph

Sunday, Sep 13Sun Sep 13

Light rain 92°/69° 💧 0.02 in 💨 9 mph

Monday, Sep 14Mon Sep 14

Mostly sunny 86°/67° 💧 None 💨 8 mph

Tuesday, Sep 15Tue Sep 15

Mostly cloudy 87°/67° 💧 None 💨 5 mph

Wednesday, Sep 16Wed Sep 16

Overcast 89°/65° 💧 None 💨 4 mph

Thursday, Sep 17Thu Sep 17

Overcast 89°/66° 💧 None 💨 5 mph

Friday, Sep 18Fri Sep 18

Mostly cloudy 90°/67° 💧 None 💨 4 mph

Saturday, Sep 19Sat Sep 19

Sunny 95°/69° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Loudon

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Loudon

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 7:00 AM

PM2.5 Fine particles Good 7,0µg/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 13,3µg/m³

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

O₃ Ozone Good 25,6µg/m³

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

NO₂ Nitrogen dioxide Good 5,4µg/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 Loudon

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 8,8Very high 😊Good

Tomorrow UV 8,4Very high 🙂Fair

Sunday UV 8,3Very high 🙂Fair

Monday UV 7,0High 🙂Fair

Tuesday UV 7,0High 🙂Fair

Wednesday UV 8,0Very high —Unavailable

Thursday UV 9,0Very high —Unavailable

Hourly UV index today

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

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.

Comfortable temperature conditions

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

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 Loudon

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 3.96 Population: 6,432

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Forecast data for Loudon were last refreshed today at 6:38 AM. The current forecast period extends through 06/09/2026 at 4:00 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.