Springfield, Illinois – Showers and thunderstorms will linger near and south of I-70 this morning, with more scattered storms rolling across central Illinois through Friday afternoon. Drivers should watch for sudden downpours and slick roads, especially during the evening commute.
According to the National Weather Service in Lincoln, afternoon and early evening storms are expected each day, with the highest rain chances—up to 40%—focused west of I-55 on Tuesday and again across the region on Wednesday and Friday. High temperatures will hover between 84° and 90°, typical for July, but humidity will begin to drop slightly by midweek.
Residents in Decatur, Springfield, and Effingham should plan for possible delays on I-70 and nearby highways during peak rain periods. Localized flooding, frequent lightning, and gusty winds could accompany stronger storms. Prepare for possible brief power outages by charging devices and keeping rain gear handy.
This week’s pattern brings relief from the muggiest conditions, though the risk for afternoon storms sticks around. The National Weather Service will update alerts as new storms develop; stay tuned for possible advisories, especially during the evening drive through Friday.
Five Day Forecast for Central Illinois:
- Today: Showers south of I-70 in the morning, then partly cloudy. Highs 84–86°.
- Tonight: Partly cloudy. Lows 62–68°.
- Tuesday: 40% chance of PM storms, mainly west of I-55. Highs 84–89°.
- Tuesday Night: Storms possible (40%). Lows 67–70°.
- Wednesday: Scattered storms, mainly in the afternoon (40%). Highs 85–88°.
- Wednesday Night: Storms tapering off. Lows 66–70°.
- Thursday: Isolated afternoon storms (30%). Highs 86–88°.
- Thursday Night: Partly cloudy. Lows 68–72°.
- Friday: More afternoon storms (40%). Highs 87–90°.
- Friday Night: Evening storms possible (40%). Lows 66–72°.
