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Current weather in Chattanooga is clear sky.

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

Now · 1:14 AM

Chattanooga Weather & Hourly Forecast

United States · Tennessee · 37421

77°F

Clear night

Feels like: 85°F

💧 Humidity 81% 🌡 Pressure 30.03 inHg 💨 Wind 1 mph 👁 Visibility 16.5 mi ☁ Clouds 5% ☀️ UV index 0.0 · Low 🌅 Sunrise — 🌇 Sunset —

Hourly Forecast for Chattanooga

Today

2:00 AM

Clear night

77° 💧 None 💨 1 mph H 81%30.03 inHg

5:00 AM

Clear night

75° 💧 None 💨 1 mph H 83%30.03 inHg

8:00 AM

Sunny

75° 💧 None 💨 1 mph H 90%30.09 inHg

11:00 AM

Sunny

86° 💧 0.001 in 💨 5 mph H 56%30.12 inHg

2:00 PM

Sunny

90° 💧 0.002 in 💨 6 mph H 50%30.06 inHg

5:00 PM

Sunny

91° 💧 0.000 in 💨 7 mph H 45%30.03 inHg

8:00 PM

Clear night

84° 💧 None 💨 6 mph H 54%30.03 inHg

11:00 PM

Clear night

78° 💧 None 💨 4 mph H 67%30.09 inHg

Tomorrow

2:00 AM

Clear night

75° 💧 None 💨 5 mph H 76%30.09 inHg

5:00 AM

Clear night

73° 💧 None 💨 4 mph H 80%30.12 inHg

8:00 AM

Sunny

73° 💧 None 💨 1 mph H 84%30.15 inHg

11:00 AM

Sunny

86° 💧 None 💨 5 mph H 56%30.21 inHg

2:00 PM

Mostly sunny

92° 💧 0.002 in 💨 6 mph H 43%30.15 inHg

5:00 PM

Mostly sunny

93° 💧 None 💨 4 mph H 42%30.12 inHg

8:00 PM

Clear night

86° 💧 None 💨 5 mph H 54%30.15 inHg

11:00 PM

Clear night

82° 💧 None 💨 7 mph H 64%30.21 inHg

Today

2:00 AM

Clear night

77° 💧 None 💨 1 mph H 81%30.03 inHg

3:00 AM

Clear night

76° 💧 None 💨 1 mph H 79%30.03 inHg

4:00 AM

Clear night

76° 💧 None 💨 1 mph H 80%30.03 inHg

5:00 AM

Clear night

75° 💧 None 💨 1 mph H 83%30.03 inHg

6:00 AM

Clear night

75° 💧 None 💨 1 mph H 88%30.06 inHg

7:00 AM

Clear night

74° 💧 None 💨 0 mph H 92%30.06 inHg

8:00 AM

Sunny

75° 💧 None 💨 1 mph H 90%30.09 inHg

9:00 AM

Sunny

78° 💧 None 💨 1 mph H 79%30.09 inHg

10:00 AM

Sunny

82° 💧 None 💨 3 mph H 65%30.12 inHg

11:00 AM

Sunny

86° 💧 None 💨 5 mph H 56%30.12 inHg

12:00 PM

Mostly sunny

88° 💧 None 💨 5 mph H 52%30.09 inHg

1:00 PM

Mostly sunny

89° 💧 0.001 in 💨 6 mph H 50%30.09 inHg

2:00 PM

Sunny

90° 💧 0.002 in 💨 6 mph H 50%30.06 inHg

3:00 PM

Sunny

91° 💧 0.000 in 💨 6 mph H 48%30.03 inHg

4:00 PM

Sunny

91° 💧 None 💨 7 mph H 46%30.03 inHg

5:00 PM

Sunny

91° 💧 0.000 in 💨 7 mph H 45%30.03 inHg

6:00 PM

Sunny

90° 💧 None 💨 7 mph H 45%30.03 inHg

7:00 PM

Sunny

88° 💧 None 💨 7 mph H 48%30.03 inHg

8:00 PM

Clear night

84° 💧 None 💨 6 mph H 54%30.03 inHg

9:00 PM

Clear night

82° 💧 None 💨 6 mph H 59%30.03 inHg

10:00 PM

Clear night

80° 💧 None 💨 5 mph H 64%30.06 inHg

11:00 PM

Clear night

78° 💧 None 💨 4 mph H 67%30.09 inHg

Tomorrow

12:00 AM

Clear night

77° 💧 None 💨 5 mph H 69%30.09 inHg

1:00 AM

Clear night

76° 💧 None 💨 5 mph H 73%30.09 inHg

2:00 AM

Clear night

75° 💧 None 💨 5 mph H 76%30.09 inHg

3:00 AM

Clear night

75° 💧 None 💨 5 mph H 78%30.09 inHg

4:00 AM

Clear night

74° 💧 None 💨 4 mph H 79%30.09 inHg

5:00 AM

Clear night

73° 💧 None 💨 4 mph H 80%30.12 inHg

6:00 AM

Clear night

73° 💧 None 💨 3 mph H 82%30.12 inHg

7:00 AM

Clear night

72° 💧 None 💨 2 mph H 84%30.15 inHg

8:00 AM

Sunny

73° 💧 None 💨 1 mph H 84%30.15 inHg

9:00 AM

Sunny

76° 💧 None 💨 1 mph H 76%30.18 inHg

10:00 AM

Sunny

81° 💧 None 💨 2 mph H 65%30.18 inHg

11:00 AM

Sunny

86° 💧 None 💨 5 mph H 56%30.21 inHg

12:00 PM

Sunny

89° 💧 None 💨 7 mph H 49%30.21 inHg

1:00 PM

Sunny

91° 💧 None 💨 7 mph H 45%30.18 inHg

2:00 PM

Mostly sunny

92° 💧 0.000 in 💨 6 mph H 43%30.15 inHg

3:00 PM

Mostly sunny

92° 💧 0.001 in 💨 5 mph H 43%30.15 inHg

4:00 PM

Mostly sunny

92° 💧 0.001 in 💨 4 mph H 43%30.15 inHg

5:00 PM

Mostly sunny

93° 💧 None 💨 4 mph H 42%30.12 inHg

6:00 PM

Mostly sunny

91° 💧 None 💨 5 mph H 44%30.12 inHg

7:00 PM

Sunny

89° 💧 None 💨 6 mph H 48%30.12 inHg

8:00 PM

Clear night

86° 💧 None 💨 5 mph H 54%30.15 inHg

9:00 PM

Clear night

85° 💧 None 💨 7 mph H 57%30.18 inHg

10:00 PM

Clear night

83° 💧 None 💨 8 mph H 61%30.21 inHg

11:00 PM

Clear night

82° 💧 None 💨 7 mph H 64%30.21 inHg

Wednesday

12:00 AM

Clear night

80° 💧 None 💨 7 mph H 66%30.21 inHg

1:00 AM

Clear night

79° 💧 None 💨 5 mph H 68%30.21 inHg

2:00 AM

Clear night

78° 💧 None 💨 3 mph H 70%30.24 inHg

3:00 AM

Clear night

77° 💧 None 💨 2 mph H 73%30.24 inHg

4:00 AM

Clear night

77° 💧 None 💨 2 mph H 75%30.21 inHg

5:00 AM

Clear night

76° 💧 None 💨 1 mph H 76%30.24 inHg

6:00 AM

Clear night

75° 💧 None 💨 1 mph H 78%30.24 inHg

7:00 AM

Clear night

75° 💧 None 💨 2 mph H 80%30.27 inHg

8:00 AM

Sunny

75° 💧 None 💨 3 mph H 80%30.30 inHg

5:00 PM

Mostly sunny

95° 💧 None 💨 3 mph H 34%30.18 inHg

8:00 PM

Clear night

90° 💧 None 💨 4 mph H 40%30.18 inHg

11:00 PM

Mostly clear night

84° 💧 None 💨 4 mph H 54%30.24 inHg

Thursday

2:00 AM

Clear night

80° 💧 None 💨 6 mph H 60%30.24 inHg

5:00 AM

Clear night

76° 💧 None 💨 3 mph H 67%30.21 inHg

8:00 AM

Sunny

75° 💧 None 💨 3 mph H 71%30.27 inHg

11:00 AM

Sunny

85° 💧 None 💨 2 mph H 46%30.27 inHg

2:00 PM

Sunny

93° 💧 None 💨 4 mph H 38%30.18 inHg

5:00 PM

Mostly sunny

96° 💧 None 💨 5 mph H 34%30.09 inHg

8:00 PM

Light rain

85° 💧 None 💨 5 mph H 58%30.12 inHg

11:00 PM

Clear night

82° 💧 None 💨 2 mph H 70%30.15 inHg

Friday

2:00 AM

Clear night

78° 💧 None 💨 3 mph H 70%30.15 inHg

5:00 AM

Clear night

75° 💧 None 💨 3 mph H 60%30.15 inHg

8:00 AM

Sunny

73° 💧 None 💨 2 mph H 65%30.18 inHg

11:00 AM

Sunny

86° 💧 None 💨 3 mph H 32%30.18 inHg

2:00 PM

Sunny

92° 💧 None 💨 2 mph H 34%30.09 inHg

5:00 PM

Mostly sunny

95° 💧 None 💨 1 mph H 31%30.00 inHg

8:00 PM

Clear night

89° 💧 None 💨 1 mph H 41%30.00 inHg

11:00 PM

Partly cloudy night

84° 💧 None 💨 4 mph H 48%30.06 inHg

Saturday

2:00 AM

Mostly clear night

79° 💧 None 💨 1 mph H 66%30.00 inHg

5:00 AM

Mostly clear night

76° 💧 None 💨 0 mph H 73%30.00 inHg

8:00 AM

Sunny

74° 💧 None 💨 2 mph H 68%30.03 inHg

11:00 AM

Sunny

87° 💧 None 💨 3 mph H 34%30.03 inHg

2:00 PM

Sunny

95° 💧 None 💨 1 mph H 29%29.97 inHg

8:00 PM

Mostly clear night

95° 💧 None 💨 1 mph H 39%29.97 inHg

Sunday

2:00 AM

Mostly clear night

89° 💧 None 💨 3 mph H 47%29.91 inHg

8:00 AM

Sunny

81° 💧 None 💨 2 mph H 67%29.94 inHg

2:00 PM

Sunny

75° 💧 None 💨 3 mph H 76%30.00 inHg

8:00 PM

Clear night

96° 💧 None 💨 4 mph H 29%29.97 inHg

Monday

2:00 AM

Mostly clear night

91° 💧 None 💨 4 mph H 36%29.91 inHg

8:00 AM

Sunny

81° 💧 None 💨 3 mph H 52%30.03 inHg

2:00 PM

Sunny

75° 💧 None 💨 3 mph H 74%30.09 inHg

8:00 PM

Clear night

95° 💧 None 💨 7 mph H 32%30.06 inHg

Tuesday

2:00 AM

Partly cloudy night

90° 💧 None 💨 4 mph H 36%30.00 inHg

8:00 AM

Mostly sunny

80° 💧 None 💨 3 mph H 56%30.09 inHg

2:00 PM

Mostly sunny

76° 💧 None 💨 2 mph H 71%30.12 inHg

8:00 PM

Partly cloudy night

95° 💧 None 💨 2 mph H 40%30.06 inHg

Wednesday

2:00 AM

Mostly clear night

81° 💧 None 💨 2 mph H 75%30.00 inHg

8:00 AM

Sunny

78° 💧 None 💨 1 mph H 93%30.03 inHg

2:00 PM

Sunny

77° 💧 None 💨 2 mph H 88%30.06 inHg

8:00 PM

Mostly clear night

94° 💧 None 💨 1 mph H 41%30.03 inHg

Thursday

2:00 AM

Mostly clear night

84° 💧 None 💨 5 mph H 61%30.00 inHg

8:00 AM

Mostly cloudy

75° 💧 None 💨 3 mph H 89%30.06 inHg

2:00 PM

Mostly sunny

73° 💧 None 💨 2 mph H 97%30.12 inHg

8:00 PM

Partly cloudy night

85° 💧 None 💨 9 mph H 54%30.09 inHg

Friday

2:00 AM

Partly cloudy night

79° 💧 None 💨 8 mph H 60%30.12 inHg

8:00 AM

Partly cloudy

72° 💧 None 💨 7 mph H 59%30.18 inHg

2:00 PM

Mostly cloudy

69° 💧 None 💨 6 mph H 59%30.24 inHg

8:00 PM

Overcast night

77° 💧 None 💨 7 mph H 47%30.24 inHg

Saturday

2:00 AM

Light rain

71° 💧 None 💨 6 mph H 71%30.21 inHg

8:00 AM

Moderate rain

67° 💧 None 💨 3 mph H 94%30.24 inHg

2:00 PM

Overcast

64° 💧 None 💨 4 mph H 88%30.24 inHg

8:00 PM

Mostly clear night

79° 💧 None 💨 8 mph H 50%30.21 inHg

Sunday

2:00 AM

Partly cloudy night

74° 💧 None 💨 4 mph H 60%30.12 inHg

8:00 AM

Mostly cloudy

70° 💧 None 💨 4 mph H 71%30.09 inHg

2:00 PM

Moderate rain

65° 💧 None 💨 7 mph H 95%30.09 inHg

8:00 PM

Light rain

71° 💧 None 💨 10 mph H 90%30.03 inHg

Monday

2:00 AM

Moderate rain

68° 💧 None 💨 5 mph H 99%29.97 inHg

8:00 AM

Light rain

68° 💧 None 💨 7 mph H 98%29.97 inHg

2:00 PM

Overcast

67° 💧 None 💨 4 mph H 99%29.94 inHg

In Chattanooga and, more broadly, across the state of Tennessee: The evening will be mostly sunny with just a few clouds drifting through. Temperatures are expected to remain quite warm, ranging between 87 and 92 degrees Fahrenheit. Light east winds will prevail, blowing at up to 5 mph with occasional gusts around the same speed. No precipitation is forecasted for the next few hours, so it should stay dry throughout the evening. Humidity levels are likely to stay moderate, and the warm conditions are expected to persist into the night. Overall, it should be a warm and pleasant evening with comfortable breezes.

15-Day Weather Outlook for Chattanooga

TomorrowTomorrow

Mostly sunny 93°/72° 💧 None 💨 8 mph

Wednesday, Sep 16Wed Sep 16

Mostly sunny 95°/75° 💧 0.011 in 💨 7 mph

Thursday, Sep 17Thu Sep 17

Light rain 96°/75° 💧 0.056 in 💨 6 mph

Friday, Sep 18Fri Sep 18

Partly cloudy 95°/73° 💧 None 💨 4 mph

Saturday, Sep 19Sat Sep 19

Mostly sunny 95°/74° 💧 0.006 in 💨 3 mph

Sunday, Sep 20Sun Sep 20

Mostly sunny 96°/75° 💧 0.002 in 💨 4 mph

Monday, Sep 21Mon Sep 21

Mostly sunny 95°/75° 💧 0.002 in 💨 7 mph

Tuesday, Sep 22Tue Sep 22

Partly cloudy 95°/76° 💧 0.001 in 💨 4 mph

Wednesday, Sep 23Wed Sep 23

Mostly sunny 94°/77° 💧 0.097 in 💨 2 mph

Thursday, Sep 24Thu Sep 24

Mostly cloudy 85°/73° 💧 0.057 in 💨 9 mph

Friday, Sep 25Fri Sep 25

Partly cloudy 79°/69° 💧 0.044 in 💨 8 mph

Saturday, Sep 26Sat Sep 26

Moderate rain 79°/64° 💧 0.327 in 💨 8 mph

Sunday, Sep 27Sun Sep 27

Moderate rain 74°/65° 💧 0.545 in 💨 10 mph

Monday, Sep 28Mon Sep 28

Moderate rain 68°/67° 💧 0.329 in 💨 7 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 2:00 AM

PM2.5 Fine particles Good 5,6µg/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 12,4µg/m³

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

O₃ Ozone Good 23,5µg/m³

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

NO₂ Nitrogen dioxide Good 5,1µg/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 8,5Very high 😊Good

Tomorrow UV 8,3Very high 😐Moderate

Wednesday UV 8,0Very high 😐Moderate

Thursday UV 8,0Very high 😐Moderate

Friday UV 8,0Very high 🙂Fair

Saturday UV 8,0Very high —Unavailable

Sunday UV 7,0High —Unavailable

Hourly UV index today

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

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 Chattanooga

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

NIGHT SKY · CHATTANOOGA, TENNESSEE

Tonight's Stargazing & Shooting Stars

Excellent observing conditions. Best local viewing window: 5:00 AM–6:00 AM.

99/100Best-hour score

BEST TIME TONIGHT 5:00 AM–6:00 AM Astronomical darkness: 9:16 PM–5:57 AM

☁ Cloud cover 1% Real hourly forecast for the best viewing hour.

☾ Moonlight 7% Waxing Crescent · Moon below the horizon at the best viewing hour.

☄ Meteor activity September ε-Perseids Reference ZHR 8 · Radiant 84° high at the best hour.

✦ Estimated visible meteors 2–5/hour Local estimate after weather, moonlight and radiant-height adjustments.

Chance ≥1 meteor in 30 min81%

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 Chattanooga were last refreshed today at 1:14 AM. The current forecast period extends through 15/09/2026 at 11:00 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.