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Current weather in Chattanooga is overcast clouds.

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

Now · 6:28 AM

Chattanooga Weather & Hourly Forecast

United States · Tennessee · 37421

71°F

Overcast night

Feels like: 77°F

💧 Humidity 96% 🌡 Pressure 30.09 inHg 💨 Wind 2 mph 👁 Visibility 4.8 mi ☁ Clouds 99% ☀️ UV index 0.0 · Low 🌅 Sunrise 7:28 AM 🌇 Sunset 7:37 PM

Hourly Forecast for Chattanooga

Today

7:00 AM

Mostly cloudy night

71° 💧 0.007 in 💨 2 mph H 96%30.09 inHg

10:00 AM

Light rain

71° 💧 0.127 in 💨 2 mph H 92%30.15 inHg

1:00 PM

Light rain

73° 💧 0.255 in 💨 1 mph H 88%30.12 inHg

4:00 PM

Moderate rain

69° 💧 0.221 in 💨 3 mph H 91%30.09 inHg

7:00 PM

Light rain

71° 💧 0.086 in 💨 1 mph H 86%30.09 inHg

10:00 PM

Mostly cloudy night

69° 💧 0.023 in 💨 3 mph H 94%30.12 inHg

Tomorrow

1:00 AM

Light rain

68° 💧 0.017 in 💨 3 mph H 98%30.12 inHg

4:00 AM

Light rain

68° 💧 0.011 in 💨 2 mph H 95%30.12 inHg

7:00 AM

Partly cloudy night

67° 💧 0.001 in 💨 3 mph H 93%30.15 inHg

10:00 AM

Partly cloudy

69° 💧 0.001 in 💨 4 mph H 83%30.18 inHg

1:00 PM

Mostly sunny

74° 💧 0.014 in 💨 3 mph H 70%30.15 inHg

4:00 PM

Light rain

78° 💧 0.040 in 💨 4 mph H 62%30.06 inHg

7:00 PM

Mostly sunny

74° 💧 0.010 in 💨 1 mph H 79%30.09 inHg

10:00 PM

Mostly clear night

69° 💧 0.001 in 💨 4 mph H 90%30.12 inHg

Friday

1:00 AM

Mostly clear night

68° 💧 0.007 in 💨 2 mph H 90%30.12 inHg

4:00 AM

Partly cloudy night

66° 💧 0.004 in 💨 3 mph H 91%30.12 inHg

Today

7:00 AM

Mostly cloudy night

71° 💧 0.001 in 💨 2 mph H 96%30.09 inHg

8:00 AM

Overcast

71° 💧 0.002 in 💨 4 mph H 96%30.12 inHg

9:00 AM

Overcast

71° 💧 0.003 in 💨 1 mph H 95%30.12 inHg

10:00 AM

Light rain

71° 💧 0.059 in 💨 2 mph H 92%30.15 inHg

11:00 AM

Light rain

71° 💧 0.039 in 💨 3 mph H 92%30.15 inHg

12:00 PM

Light rain

73° 💧 0.029 in 💨 3 mph H 88%30.15 inHg

1:00 PM

Light rain

73° 💧 0.052 in 💨 1 mph H 88%30.12 inHg

2:00 PM

Light rain

71° 💧 0.068 in 💨 6 mph H 94%30.12 inHg

3:00 PM

Moderate rain

69° 💧 0.135 in 💨 6 mph H 95%30.12 inHg

4:00 PM

Moderate rain

69° 💧 0.180 in 💨 3 mph H 91%30.09 inHg

5:00 PM

Light rain

71° 💧 0.031 in 💨 2 mph H 91%30.09 inHg

6:00 PM

Light rain

72° 💧 0.010 in 💨 1 mph H 89%30.09 inHg

7:00 PM

Light rain

71° 💧 0.016 in 💨 1 mph H 86%30.09 inHg

8:00 PM

Light rain

69° 💧 0.056 in 💨 0 mph H 92%30.09 inHg

9:00 PM

Light rain

69° 💧 0.014 in 💨 2 mph H 94%30.12 inHg

10:00 PM

Mostly cloudy night

69° 💧 0.004 in 💨 3 mph H 94%30.12 inHg

11:00 PM

Light rain

69° 💧 0.007 in 💨 3 mph H 96%30.12 inHg

Tomorrow

12:00 AM

Light rain

68° 💧 0.013 in 💨 2 mph H 97%30.12 inHg

1:00 AM

Light rain

68° 💧 0.007 in 💨 3 mph H 98%30.12 inHg

2:00 AM

Light rain

68° 💧 0.007 in 💨 2 mph H 98%30.12 inHg

3:00 AM

Overcast night

67° 💧 0.003 in 💨 2 mph H 97%30.12 inHg

4:00 AM

Light rain

68° 💧 0.009 in 💨 2 mph H 95%30.12 inHg

5:00 AM

Overcast night

67° 💧 0.001 in 💨 3 mph H 94%30.12 inHg

6:00 AM

Partly cloudy night

67° 💧 0.001 in 💨 3 mph H 94%30.12 inHg

7:00 AM

Partly cloudy night

67° 💧 0.001 in 💨 3 mph H 93%30.15 inHg

8:00 AM

Partly cloudy

66° 💧 None 💨 4 mph H 93%30.15 inHg

9:00 AM

Mostly sunny

67° 💧 None 💨 4 mph H 90%30.15 inHg

10:00 AM

Partly cloudy

69° 💧 None 💨 4 mph H 83%30.18 inHg

11:00 AM

Partly cloudy

72° 💧 None 💨 5 mph H 74%30.18 inHg

12:00 PM

Mostly cloudy

73° 💧 0.001 in 💨 3 mph H 71%30.15 inHg

1:00 PM

Mostly sunny

74° 💧 0.001 in 💨 3 mph H 70%30.15 inHg

2:00 PM

Mostly sunny

76° 💧 0.004 in 💨 1 mph H 63%30.12 inHg

3:00 PM

Light rain

78° 💧 0.010 in 💨 1 mph H 60%30.09 inHg

4:00 PM

Light rain

78° 💧 0.017 in 💨 4 mph H 62%30.06 inHg

5:00 PM

Light rain

76° 💧 0.016 in 💨 4 mph H 68%30.06 inHg

6:00 PM

Light rain

76° 💧 0.007 in 💨 3 mph H 71%30.06 inHg

7:00 PM

Mostly sunny

74° 💧 0.003 in 💨 1 mph H 79%30.09 inHg

8:00 PM

Light rain

72° 💧 0.004 in 💨 5 mph H 84%30.09 inHg

9:00 PM

Partly cloudy night

71° 💧 0.003 in 💨 4 mph H 88%30.12 inHg

10:00 PM

Mostly clear night

69° 💧 None 💨 4 mph H 90%30.12 inHg

11:00 PM

Mostly clear night

69° 💧 0.001 in 💨 3 mph H 91%30.12 inHg

Friday

12:00 AM

Mostly cloudy night

69° 💧 None 💨 2 mph H 91%30.12 inHg

1:00 AM

Mostly clear night

68° 💧 0.004 in 💨 2 mph H 90%30.12 inHg

2:00 AM

Mostly clear night

67° 💧 0.003 in 💨 2 mph H 92%30.12 inHg

3:00 AM

Mostly clear night

66° 💧 0.001 in 💨 2 mph H 91%30.12 inHg

4:00 AM

Partly cloudy night

66° 💧 0.001 in 💨 3 mph H 91%30.12 inHg

5:00 AM

Mostly cloudy night

65° 💧 0.001 in 💨 3 mph H 91%30.12 inHg

6:00 AM

Mostly cloudy night

65° 💧 0.002 in 💨 3 mph H 92%30.12 inHg

7:00 AM

Overcast night

64° 💧 0.001 in 💨 4 mph H 92%30.15 inHg

8:00 AM

Mostly cloudy

64° 💧 0.001 in 💨 4 mph H 91%30.15 inHg

9:00 AM

Overcast

65° 💧 0.001 in 💨 4 mph H 87%30.18 inHg

10:00 AM

Mostly cloudy

67° 💧 None 💨 4 mph H 81%30.18 inHg

11:00 AM

Mostly cloudy

69° 💧 None 💨 3 mph H 76%30.18 inHg

12:00 PM

Partly cloudy

70° 💧 None 💨 3 mph H 70%30.18 inHg

1:00 PM

Mostly cloudy

73° 💧 None 💨 5 mph H 63%30.15 inHg

2:00 PM

Mostly cloudy

74° 💧 None 💨 5 mph H 60%30.12 inHg

3:00 PM

Overcast

74° 💧 None 💨 5 mph H 59%30.09 inHg

4:00 PM

Overcast

75° 💧 None 💨 5 mph H 59%30.09 inHg

5:00 PM

Partly cloudy

75° 💧 None 💨 6 mph H 60%30.06 inHg

6:00 PM

Sunny

74° 💧 None 💨 5 mph H 62%30.06 inHg

7:00 PM

Sunny

72° 💧 None 💨 3 mph H 71%30.06 inHg

8:00 PM

Clear night

70° 💧 None 💨 1 mph H 75%30.06 inHg

11:00 PM

Clear night

66° 💧 None 💨 5 mph H 79%30.09 inHg

Saturday

2:00 AM

Mostly clear night

62° 💧 None 💨 4 mph H 85%30.09 inHg

5:00 AM

Clear night

59° 💧 None 💨 2 mph H 88%30.12 inHg

8:00 AM

Partly cloudy

58° 💧 None 💨 1 mph H 93%30.15 inHg

11:00 AM

Mostly cloudy

67° 💧 None 💨 4 mph H 58%30.18 inHg

2:00 PM

Sunny

74° 💧 None 💨 1 mph H 46%30.12 inHg

5:00 PM

Overcast

75° 💧 None 💨 2 mph H 45%30.06 inHg

8:00 PM

Partly cloudy night

69° 💧 None 💨 2 mph H 64%30.06 inHg

11:00 PM

Partly cloudy night

66° 💧 None 💨 2 mph H 72%30.06 inHg

Sunday

2:00 AM

Overcast night

64° 💧 None 💨 1 mph H 79%30.06 inHg

5:00 AM

Overcast night

64° 💧 None 💨 0 mph H 83%30.06 inHg

8:00 AM

Overcast

62° 💧 None 💨 1 mph H 87%30.06 inHg

11:00 AM

Partly cloudy

67° 💧 None 💨 1 mph H 71%30.09 inHg

2:00 PM

Partly cloudy

75° 💧 None 💨 2 mph H 50%30.03 inHg

5:00 PM

Partly cloudy

77° 💧 None 💨 3 mph H 52%29.97 inHg

8:00 PM

Mostly clear night

72° 💧 None 💨 2 mph H 69%29.94 inHg

11:00 PM

Partly cloudy night

67° 💧 None 💨 3 mph H 73%29.97 inHg

Monday

2:00 AM

Mostly clear night

64° 💧 None 💨 2 mph H 79%29.97 inHg

5:00 AM

Mostly clear night

63° 💧 None 💨 3 mph H 83%29.97 inHg

8:00 AM

Mostly sunny

60° 💧 None 💨 3 mph H 84%30.00 inHg

11:00 AM

Sunny

70° 💧 None 💨 3 mph H 59%30.00 inHg

2:00 PM

Sunny

80° 💧 None 💨 1 mph H 49%29.94 inHg

5:00 PM

Sunny

81° 💧 None 💨 2 mph H 48%29.88 inHg

8:00 PM

Mostly clear night

75° 💧 None 💨 1 mph H 67%29.88 inHg

Tuesday

2:00 AM

Clear night

68° 💧 None 💨 1 mph H 88%29.94 inHg

8:00 AM

Light rain

66° 💧 None 💨 3 mph H 98%30.00 inHg

2:00 PM

Overcast

78° 💧 None 💨 4 mph H 66%29.94 inHg

8:00 PM

Mostly clear night

75° 💧 None 💨 6 mph H 69%29.91 inHg

Wednesday

2:00 AM

Overcast night

69° 💧 None 💨 6 mph H 85%29.91 inHg

8:00 AM

Mostly cloudy

67° 💧 None 💨 8 mph H 78%29.91 inHg

2:00 PM

Overcast

82° 💧 None 💨 16 mph H 55%29.83 inHg

8:00 PM

Moderate rain

70° 💧 None 💨 12 mph H 96%29.77 inHg

Thursday

2:00 AM

Moderate rain

70° 💧 None 💨 11 mph H 98%29.74 inHg

8:00 AM

Overcast

69° 💧 None 💨 4 mph H 98%29.80 inHg

2:00 PM

Overcast

78° 💧 None 💨 8 mph H 62%29.83 inHg

8:00 PM

Clear night

70° 💧 None 💨 5 mph H 76%29.88 inHg

Friday

2:00 AM

Clear night

62° 💧 None 💨 4 mph H 92%29.94 inHg

8:00 AM

Sunny

59° 💧 None 💨 3 mph H 93%29.97 inHg

2:00 PM

Mostly sunny

72° 💧 None 💨 7 mph H 51%30.00 inHg

8:00 PM

Clear night

63° 💧 None 💨 5 mph H 66%30.00 inHg

Saturday

2:00 AM

Clear night

56° 💧 None 💨 5 mph H 76%30.06 inHg

8:00 AM

Sunny

53° 💧 None 💨 6 mph H 79%30.15 inHg

2:00 PM

Sunny

67° 💧 None 💨 8 mph H 50%30.15 inHg

8:00 PM

Clear night

61° 💧 None 💨 4 mph H 69%30.12 inHg

Sunday

2:00 AM

Clear night

55° 💧 None 💨 5 mph H 76%30.18 inHg

8:00 AM

Sunny

53° 💧 None 💨 5 mph H 81%30.24 inHg

2:00 PM

Overcast

70° 💧 None 💨 1 mph H 58%30.21 inHg

8:00 PM

Mostly clear night

64° 💧 None 💨 2 mph H 79%30.15 inHg

Monday

2:00 AM

Clear night

59° 💧 None 💨 1 mph H 88%30.18 inHg

8:00 AM

Partly cloudy

54° 💧 None 💨 1 mph H 99%30.21 inHg

2:00 PM

Mostly sunny

73° 💧 None 💨 0 mph H 54%30.18 inHg

8:00 PM

Clear night

67° 💧 None 💨 1 mph H 69%30.12 inHg

Tuesday

2:00 AM

Clear night

59° 💧 None 💨 0 mph H 86%30.15 inHg

8:00 AM

Sunny

56° 💧 None 💨 0 mph H 94%30.18 inHg

2:00 PM

Sunny

76° 💧 None 💨 2 mph H 49%30.12 inHg

8:00 PM

Clear night

69° 💧 None 💨 2 mph H 68%30.06 inHg

Wednesday

2:00 AM

Clear night

60° 💧 None 💨 3 mph H 91%30.03 inHg

8:00 AM

Sunny

58° 💧 None 💨 4 mph H 91%30.00 inHg

2:00 PM

Mostly sunny

76° 💧 None 💨 8 mph H 58%30.00 inHg

8:00 PM

Clear night

65° 💧 None 💨 6 mph H 51%29.97 inHg

In Chattanooga 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 Chattanooga

TomorrowTomorrow

Overcast 78°/66° 💧 None 💨 5 mph

Friday, Sep 25Fri Sep 25

Mostly cloudy 75°/64° 💧 0.469 in 💨 6 mph

Saturday, Sep 26Sat Sep 26

Mostly sunny 75°/58° 💧 None 💨 4 mph

Sunday, Sep 27Sun Sep 27

Overcast 77°/62° 💧 0.001 in 💨 3 mph

Monday, Sep 28Mon Sep 28

Mostly sunny 81°/60° 💧 0.004 in 💨 3 mph

Tuesday, Sep 29Tue Sep 29

Light rain 78°/66° 💧 0.079 in 💨 6 mph

Wednesday, Sep 30Wed Sep 30

Moderate rain 82°/67° 💧 0.515 in 💨 16 mph

Thursday, Oct 1Thu Oct 1

Moderate rain 78°/69° 💧 0.855 in 💨 11 mph

Friday, Oct 2Fri Oct 2

Mostly sunny 72°/59° 💧 None 💨 7 mph

Saturday, Oct 3Sat Oct 3

Sunny 67°/53° 💧 None 💨 8 mph

Sunday, Oct 4Sun Oct 4

Overcast 70°/53° 💧 None 💨 5 mph

Monday, Oct 5Mon Oct 5

Partly cloudy 73°/54° 💧 None 💨 1 mph

Tuesday, Oct 6Tue Oct 6

Sunny 76°/56° 💧 None 💨 2 mph

Wednesday, Oct 7Wed Oct 7

Mostly sunny 76°/58° 💧 None 💨 8 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Chattanooga

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Chattanooga

Hourly forecast · Updated every 2 hours

Good

Nearest forecast value 7:00 AM

PM2.5 Fine particles Good 7,6µg/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 9,7µg/m³

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

O₃ Ozone Good 34,2µg/m³

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

NO₂ Nitrogen dioxide Good 3,4µg/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 Chattanooga

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 2,8Low 😊Good

Tomorrow UV 3,9Moderate 🙂Fair

Friday UV 6,4High 🙂Fair

Saturday UV 6,9High 😐Moderate

Sunday UV 7,0High 😊Good

Monday UV 7,0High —Unavailable

Tuesday UV 7,0High —Unavailable

Hourly UV index today

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

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

Low UV risk

UV radiation will be low, although basic protection is still advisable during prolonged exposure.

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 Chattanooga

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · CHATTANOOGA, TENNESSEE

Tonight's Stargazing & Shooting Stars

Fair observing conditions. Best local viewing window: 6:00 AM–7:00 AM.

54/100Best-hour score

BEST TIME TONIGHT 6:00 AM–7:00 AM Astronomical darkness: 9:01 PM–6:06 AM

☁ Cloud cover 58% Real hourly forecast for the best viewing hour.

☾ Moonlight 95% Waxing Gibbous · Moon below the horizon at the best viewing hour.

☄ Meteor activity Southern Taurids Reference ZHR 7 · Radiant 65° high at the best hour.

✦ Estimated visible meteors 1–2/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min51%

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 Chattanooga were last refreshed today at 6:28 AM. The current forecast period extends through 25/09/2026 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.