Humid cities · Illinois
How humid is Springfield, Illinois in summer?
Springfield right now
41°FClear skies
- Today44°F / 33°FClear skies
- Tomorrow49°F / 28°FClear skies
- Monday52°F / 31°FClear skies
Sky's showing off.
Live from OpenWeatherMap. Alerts from the National Weather Service.
Across June, July and August, the dew point in Springfield, Illinois averages about 64.5°F, which is sticky on the usual dew point scale.
July is the muggiest month, with the dew point averaging about 66.5°F. On NOAA’s hour by hour normals, about 1,158 hours, about 13% of the year, average a dew point of 65°F or more. That makes it the 39th 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 34°F, which is dry.
Springfield’s summer dew point averages about 64.5°F. Cornfields breathe out all summer and the whole town breathes it in.
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 | 64.5°F |
|---|---|
| Muggiest month | July, 66.5°F |
| Hours a year at a 65°F dew point or more | 1,158 (13%) |
| 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
- Lexington, Kentucky: about 64.3°F
- Wichita, Kansas: about 64.7°F
- Washington, DC: about 64.8°F
More about the weather here
Source: NOAA U.S. Climate Normals, hourly, 1991 to 2020, station USW00093822. Average dew points, not the stickiest days.