Summer temperatures · Illinois
How hot does Springfield, Illinois get 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.
In a typical summer, June to August, Springfield, Illinois averages highs around 85°F and lows around 65°F.
About 28 days a year reach 90°F or hotter, and about one reaches 100°F. About 112 days a year get to 80°F or warmer. That makes it the 59th hottest summer of the 129 US cities we track.
Last updated
The hottest high in the forecast for the next 48 hours is about 49°F.
Springfield, Illinois averages summer highs around 85°F, so the cornfields all around it get all the sun they want and then some.
Live 48-hour forecast from OpenWeatherMap, refreshed about every half hour. Alerts from the National Weather Service.
Summer at a glance
| Average summer high | 85°F |
|---|---|
| Average summer low | 65°F |
| Days a year at 80°F or warmer | 112 |
| Days a year at 90°F or hotter | 28 |
| Days a year at 100°F or hotter | 1 |
| Average winter high, for comparison | 39°F |
Summer here is June to August. Counts are averages a year.
Cities with about the same summer
- Harrisburg, Pennsylvania: highs around 85°F, lows around 65°F
- Lexington, Kentucky: highs around 86°F, lows around 65°F
- New York, New York: highs around 83°F, lows around 68°F
More about the weather here
Source: NOAA U.S. Climate Normals, 1991 to 2020, station USW00093822.