Humid cities · Tennessee
How humid is Chattanooga in summer?
Chattanooga right now
48°FScattered clouds
- Today49°F / 40°FClouds
- Tomorrow55°F / 36°FClear skies
- Monday55°F / 36°FClear skies
The sun's playing hide and seek.
Live from OpenWeatherMap. Alerts from the National Weather Service.
Across June, July and August, the dew point in Chattanooga averages about 67.2°F, which is muggy on the usual dew point scale.
July is the muggiest month, with the dew point averaging about 68.7°F. On NOAA’s hour by hour normals, about 1,998 hours, about 23% of the year, average a dew point of 65°F or more. That makes it the 23rd most humid summer of the 124 US cities we track.
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The highest dew point in the forecast for the next 48 hours is about 37°F, which is dry.
Chattanooga’s summer dew point averages about 67°F. The mountains trap the view and, apparently, the steam.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Summer humidity at a glance
| Dew point, June to August | 67.2°F |
|---|---|
| Muggiest month | July, 68.7°F |
| Hours a year at a 65°F dew point or more | 1,998 (23%) |
| How summer feels | muggy |
The dew point is the temperature the air would have to cool to for dew to form, so the higher it is, the more water the air holds. Forecasters usually call under 55°F comfortable, 55 to 65°F sticky and 65°F or more muggy; 70°F or more feels tropical.
Cities with about the same summer air
- Atlanta, Georgia: about 67.1°F
- Raleigh, North Carolina: about 67.1°F
- Honolulu, Hawaii: about 66.9°F
More about the weather here
Source: NOAA U.S. Climate Normals, hourly, 1991 to 2020, station USW00013882. Average dew points, not the stickiest days.