Springfield, Illinois – Central Illinois is heading into a stretch of summer heat, with highs pushing into the low 90s by the weekend and only a brief window for storms tonight. According to the National Weather Service in Lincoln, there’s a slight chance (20%) of showers and thunderstorms overnight, but most of the region—including cities like Springfield, Decatur, and Bloomington—will see dry skies and building warmth through Saturday.
Daily highs from Thursday through Saturday are expected to reach 88 to 93 degrees, with lows in the upper 60s to mid-70s. Humidity will rise but widespread storms are not expected after tonight. Most roads and communities will stay dry, and outdoor plans should go uninterrupted, though residents are advised to watch for any isolated thunder overnight and use caution on wet roads if storms do develop.
Sunday brings the next real chance for rain, as scattered showers and storms could return across central Illinois. Until then, residents are encouraged to stay hydrated and limit strenuous activity during peak afternoon heat. The warming trend will likely continue into early next week, so heat safety will remain important.
More advisories could be issued if storm chances increase, especially by Sunday.
Five Day Forecast for Springfield, Illinois
- Thursday: Mostly sunny, highs 87–92°F, lows 68–73°F. <10% chance of rain.
- Friday: Sunny, highs 88–92°F, lows 69–75°F. <10% chance of rain.
- Saturday: Mostly sunny, highs 88–93°F, lows 70–75°F. 10% chance of rain.
- Sunday: Partly cloudy with scattered showers, highs 87–92°F, lows 70–75°F. 20% chance of rain.
- Monday: Continued warm, partly sunny, highs upper 80s to low 90s. Rain possible early.
