Chattanooga, TN 14-Day Forecast
Tennessee, United States 🇺🇸
92°
Sunny right now
Today: high 92°, low 70°
Updated just now
Chattanooga weather for the next 14 days
Wednesday, September 16
Sunny High 93° Low 72°Precipitation
4%
· 0.0 in
Max wind
4 mph
Humidity
63%
UV index
8 - Very High
Sunrise / sunset
07:24 AM / 07:47 PM
Thursday, September 17
Sunny High 93° Low 71°Precipitation
3%
· 0.0 in
Max wind
4 mph
Humidity
57%
UV index
8 - Very High
Sunrise / sunset
07:25 AM / 07:45 PM
Friday, September 18
Sunny High 95° Low 73°Precipitation
57%
· 0.07 in
Max wind
7 mph
Humidity
62%
UV index
8 - Very High
Sunrise / sunset
07:26 AM / 07:44 PM
Saturday, September 19
Light rain shower High 92° Low 70°Precipitation
81%
· 0.43 in
Max wind
11 mph
Humidity
80%
UV index
8 - Very High
Sunrise / sunset
07:27 AM / 07:42 PM
Sunday, September 20
Partly Cloudy High 90° Low 70°Precipitation
47%
· 0.04 in
Max wind
5 mph
Humidity
75%
UV index
8 - Very High
Sunrise / sunset
07:27 AM / 07:41 PM
Monday, September 21
Patchy rain nearby High 89° Low 72°Precipitation
70%
· 0.12 in
Max wind
5 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
07:28 AM / 07:40 PM
Tuesday, September 22
Patchy rain nearby High 87° Low 70°Precipitation
82%
· 0.2 in
Max wind
5 mph
Humidity
81%
UV index
7 - High
Sunrise / sunset
07:29 AM / 07:38 PM
Wednesday, September 23
Patchy rain nearby High 87° Low 69°Precipitation
82%
· 0.32 in
Max wind
4 mph
Humidity
79%
UV index
7 - High
Sunrise / sunset
07:30 AM / 07:37 PM
Thursday, September 24
Overcast High 87° Low 72°Precipitation
10%
· 0.0 in
Max wind
7 mph
Humidity
67%
UV index
8 - Very High
Sunrise / sunset
07:30 AM / 07:35 PM
Friday, September 25
Sunny High 77° Low 65°Precipitation
74%
· 0.19 in
Max wind
10 mph
Humidity
79%
UV index
6 - High
Sunrise / sunset
07:31 AM / 07:34 PM
Saturday, September 26
Sunny High 78° Low 61°Precipitation
6%
· 0.0 in
Max wind
10 mph
Humidity
72%
UV index
7 - High
Sunrise / sunset
07:32 AM / 07:32 PM
Sunday, September 27
Sunny High 80° Low 62°Precipitation
6%
· 0.0 in
Max wind
10 mph
Humidity
71%
UV index
7 - High
Sunrise / sunset
07:33 AM / 07:31 PM
Monday, September 28
Sunny High 68° Low 57°Precipitation
10%
· 0.0 in
Max wind
9 mph
Humidity
75%
UV index
5 - Moderate
Sunrise / sunset
07:33 AM / 07:29 PM
Chattanooga 14-day outlook: the story
The warmest day of Chattanooga's 14-day outlook is Friday, September 18 with a high near 95°F (35°C); the coolest night comes Monday, September 28, dipping to 57°F (14°C). The trend points cooler: week two runs about 11°F below week one. Highs over the next two weeks average 92°F (33°C), about 9°F (5°C) above the typical September high of 83°F (28°C).
Precipitation is most likely on Friday 18, Saturday 19, Monday 21, Tuesday 22 and beyond; the wettest day looks like Saturday, September 19 with about 0.43 in (10.9 mm) expected. For the weekend, expect Saturday 92°F (33°C) and light rain shower / Sunday 90°F (32°C) and partly cloudy.
For typical conditions month by month, see the Chattanooga climate & average temperatures guide.
Chattanooga forecast questions
Will it rain in Chattanooga this week?
The forecast currently shows meaningful precipitation chances on 6 of the next 14 days, peaking around Saturday, September 19.
What will be the warmest day in Chattanooga over the next 14 days?
Friday, September 18, with a forecast high near 95°F (35°C).
How accurate is a 14-day forecast for Chattanooga?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Chattanooga by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 50° | 33° | 10 | 5.3 in | 6.5 h/day | 74% |
| February | 56° | 37° | 13 | 6.3 in | 6.3 h/day | 74% |
| March | 63° | 43° | 13 | 6.1 in | 8.0 h/day | 71% |
| April | 70° | 49° | 11 | 5.1 in | 9.7 h/day | 70% |
| May | 79° | 59° | 11 | 4.1 in | 10.8 h/day | 73% |
| June | 85° | 67° | 14 | 4.1 in | 11.6 h/day | 74% |
| July | 88° | 71° | 16 | 5.0 in | 11.5 h/day | 76% |
| August | 87° | 70° | 14 | 4.5 in | 10.7 h/day | 75% |
| September | 83° | 65° | 8 | 3.8 in | 10.0 h/day | 71% |
| October | 73° | 54° | 8 | 3.7 in | 8.9 h/day | 72% |
| November | 62° | 44° | 9 | 3.7 in | 7.5 h/day | 73% |
| December | 54° | 38° | 11 | 5.6 in | 5.9 h/day | 78% |
14-day forecasts nearby