Spring Warmth Surges Into St. Louis, Thunderstorms Follow

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Warm air is pushing into the St. Louis region, with temperatures expected to surge to around 84°F by Monday. However, this spring warmth won't last long, as a developing storm system will bring a growing chance of rain and thunderstorms to the area by Tuesday afternoon, with the storms likely continuing through Wednesday.

Why it matters

The rapid temperature swing and incoming storms could create hazardous driving conditions, with the potential for slick roads, reduced visibility, and ponding on low-lying areas. This weather pattern is a stark reminder of the unpredictable nature of spring weather in the Midwest.

The details

According to the National Weather Service, temperatures will jump into the low 70s on Sunday, then surge to around 84°F by Monday with steady south winds increasing through the afternoon. However, moisture will surge back into Missouri and western Illinois by Tuesday afternoon, bringing a growing chance of rain and thunderstorms after 1 p.m. By Tuesday night, rain chances will spike to near 90%, with periods of steady rain and embedded thunderstorms likely across the St. Louis metro. Roads like I-64, I-44, and I-55 could turn slick quickly, especially during late-night travel.

• On Sunday, temperatures will reach the low 70s.
• On Monday, temperatures will surge to around 84°F.
• On Tuesday afternoon, there will be a growing chance of rain and thunderstorms.
• On Tuesday night, rain chances will spike to near 90%, with periods of steady rain and embedded thunderstorms likely.
• On Wednesday, rain is likely to continue through much of the day, with highs dropping into the mid-50s.

What’s next

Drivers should plan ahead and be prepared for potentially hazardous conditions on the roads, especially during late-night travel on Tuesday.