Weather could affect your Memorial Day weekend, especially east of the Rockies. With 45.1M set to travel, rain and heat may impact roads and outdoor plans.

A large area of severe thunderstorms is forecast into Tuesday night and will overlap areas in the Ohio, Tennessee and middle Mississippi valleys that were hit by deadly and damaging storms, forecasters say.

We enjoyed a day w/ lower humidity and somewhat cooler lows. Now we get back to reality as warm muggy air moves back in tonight into the holiday weekend. It will be hot & humid with a few spotty showers. Not a washout but passing midday-early evening showers. Ehe 90s will return. pic.twitter.com/Gm4K40gLap

MEMORIAL DAY WEEKEND: A soggy weekend is ahead. We can expect Saturday to bring in afternoon and evening storms. Some could be on the strong side. Shower and storm chances linger Sunday and Memorial Day. Temperatures are expected to be cooler those days, back to the 60s and 70s.

Another chance for a few severe storms is now in the forecast for Alabama, and it will be over the Memorial Day weekend. NOAA’s Storm Prediction Center has added a Level 1 out of 5 (marginal) risk for severe storms on Saturday, mainly Saturday afternoon through the evening.

A slow-moving storm system could dampen outdoor plans this weekend into Memorial Day, especially across the South.

A round of strong to severe storms starts the day as a warm front lifts northeastward. Warm and unstable air surges in behind this warm front with southern Kentucky hitting the 80s. Low pressure then rolls from west to east across the lower Ohio Valley. This puts Kentucky in the warm sector, leading to rounds of strong to severe storms.

A soggy Tuesday with possible severe storms, cooler temps, and a slow warm-up through the holiday weekend—get your full Chicagoland forecast here.