Humid cities · Illinois and Iowa
How humid is Quad Cities in summer?
Quad Cities right now
38°FClear skies
- Today42°F / 33°FClear skies
- Tomorrow46°F / 28°FClear skies
- Monday50°F / 31°FClear skies
Blue sky. Suspiciously nice.
Live from OpenWeatherMap. Alerts from the National Weather Service.
Across June, July and August, the dew point in Quad Cities averages about 62.8°F, which is sticky on the usual dew point scale.
July is the muggiest month, with the dew point averaging about 64.8°F. On NOAA’s hour by hour normals, about 398 hours, about 5% of the year, average a dew point of 65°F or more. That makes it the joint 49th 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 32°F, which is dry.
The Quad Cities average a summer dew point of about 63°F. Four cities sharing one river and one damp July.
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 | 62.8°F |
|---|---|
| Muggiest month | July, 64.8°F |
| Hours a year at a 65°F dew point or more | 398 (5%) |
| How summer feels | sticky |
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
- Des Moines, Iowa: about 62.8°F
- Indianapolis, Indiana: about 63°F
- Lincoln, Nebraska: about 63°F
More about the weather here
Source: NOAA U.S. Climate Normals, hourly, 1991 to 2020, station USW00014923. Average dew points, not the stickiest days.