Central Illinois is gearing up for a warm and muggy week ahead, as both heat and humidity begin to build up across Springfield and nearby areas. Rain chances are expected early in the week, followed by hot and sticky weather, with temperatures nearing 90 degrees by Friday.
Early Week Showers Followed by Hot Days
The National Weather Service in Lincoln says scattered showers and thunderstorms are expected from Monday afternoon through early Tuesday. The rain chances range between 20% to 40%, especially for places east of I-55, including Decatur and Bloomington.
While these storms won’t last long, they may still cause brief heavy rain, gusty winds, and slippery roads. Afternoon travel and outdoor plans could be disrupted, so it’s best to keep an umbrella handy and check local weather alerts before heading out.
Heat and Humidity on the Rise Midweek
After the early-week rain chances, the weather will turn warmer and more humid. Highs will gradually climb into the upper 80s by Wednesday and Thursday. By Friday, Springfield could see temperatures reaching or even passing 90 degrees.
This kind of heat can be risky, especially during the afternoon. People are advised to:
Stay indoors during peak heat hours (12 PM–4 PM).
Drink plenty of water.
Check on elderly neighbors or those without cooling.
Avoid outdoor work or exercise when the sun is strongest.
Humidity will also make it feel hotter than the actual temperature, increasing the chances of heat exhaustion if you’re not careful.
Weekend Outlook: More Heat, Small Storm Chance
As we move into the weekend, the hot and humid weather is expected to continue. There’s also a slight chance of storms on Friday, but most of the weekend will stay dry and warm. People heading to outdoor events or fairs should dress light and plan for shade or indoor breaks.
Any major changes in weather, including heat alerts or storm advisories, will be shared by local authorities. So, it’s important to stay updated throughout the week.
Five-Day Weather Forecast for Springfield, Illinois
Monday: Scattered showers and storms, highs 79–83°F
Tuesday: Partly cloudy, slight storm risk, highs 80–83°F
Wednesday: Warm and humid, highs 84–87°F
Thursday: Mostly sunny and hot, highs 86–89°F
Friday: Humid with a chance of storms, highs near 90°F
Springfield and much of Central Illinois are in for a hot and humid stretch this week. While early-week storms might bring brief relief, temperatures are set to climb quickly by midweek. The combination of rising heat and sticky air means residents should take care when spending time outdoors. Make sure to drink water, avoid midday heat, and keep an eye on updated forecasts. The next real break from this summer heat may not arrive until next week.
