Springfield, Ill. – Central Illinois is enjoying a stretch of mild late-summer weather, with cool mornings and pleasant afternoons making for a rare break from the heat. Highs will stay in the low to mid-70s through Wednesday, while overnight lows dip into the upper 40s in many towns.
According to the National Weather Service in Lincoln, clear skies and dry air will dominate the first half of the week, keeping humidity low and conditions comfortable. The coolest nights are expected Monday and Tuesday, when Bloomington and Champaign could see temperatures bottom out in the upper 40s, while areas farther south like Decatur may hold just above 50.
Drivers may notice patchy early-morning fog on rural roads, though no widespread travel hazards are expected. Residents are urged to keep windows cracked at night instead of relying on air conditioning, as cooler overnight lows offer natural relief.
By Thursday, a warming trend begins, with highs climbing into the upper 70s to near 80 in Peoria and Springfield. The weekend looks warmer but still manageable, with highs in the low 80s and no major storm systems on the horizon.
Five Day Forecast for Springfield, Illinois:
- Monday: Sunny, high 72–75, low 48–51
- Tuesday: Sunny, high 72–74, low 47–49
- Wednesday: Mostly sunny, high 74–77, low 51–56
- Thursday: Partly cloudy, high 78–80, low 55–57
- Friday: Partly cloudy, high 80–82, low 56–59
