St. Louis, Missouri – Drivers across Missouri, southern Illinois, and western Kentucky could face water-covered roads and reduced visibility during the April 1–7 period as repeated rounds of rain move along the Mississippi and Ohio River corridors, increasing the risk of travel delays on I-70, I-64, and I-55.
According to the National Weather Service Climate Prediction Center, this region falls within a 40–60% probability zone for heavy precipitation, with nearby areas trending even higher toward the Great Lakes. Multiple storm systems are expected to track through the Mid-Mississippi Valley, bringing steady rain and periodic heavier downpours.
Rainfall totals between 2 and 4 inches are possible, particularly in cities like St. Louis, Springfield, Evansville, and Paducah. Low-lying roads, underpasses, and flood-prone areas could see rapid water accumulation during heavier rainfall. The Mississippi and Ohio Rivers, along with smaller tributaries, may rise steadily through the period as runoff increases. Agencies including MoDOT, IDOT, and KYTC may issue travel alerts if standing water impacts major highways.
Temperatures are expected to trend above normal, with warm air supporting a moisture-rich environment that enhances rainfall intensity and frequency.
This wet and unsettled pattern will persist through April 1–7, with additional advisories or localized flood warnings possible as conditions evolve across the region.
