ILLINOIS, INDIANA, MISSOURI — A renewed severe weather threat is emerging across the Midwest as forecast models signal multiple rounds of storms returning on Monday night (March 30) and again on Tuesday (March 31), 2026. The latest outlook highlights Illinois and surrounding states as a key zone where all severe hazards could be in play once again.
This developing setup raises concerns for damaging winds, large hail, and potential tornadoes, especially as storm energy appears to increase heading into Tuesday.
Monday Night Setup Brings Initial Storm Risk Across Illinois and Nearby States
Forecast data for Day 4 (March 30) shows a growing severe weather probability zone centered over Illinois, eastern Missouri, and parts of Iowa and Wisconsin. While this initial round may be more scattered, it signals the beginning of a more active pattern developing across the region.
Storms Monday night could begin organizing as they track eastward, with hail and gusty winds likely the primary threats early on. However, even at this stage, conditions may allow for isolated stronger storms, depending on how much instability develops…