Missouri-Illinois Weather Alert Today: Thunderstorms and Wet Roads Impact I-64 and I-70 in St. Louis

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Missouri – Rain taps steadily on pavement across St. Louis this afternoon, with pockets of thunder adding sudden bursts of noise and reduced visibility for drivers.

According to the National Weather Service in St. Louis, widespread showers and thunderstorms are pushing through eastern Missouri and western Illinois, with some storms capable of intensifying before moving out later this evening.

Across the metro, including St. Louis, Clayton, and East St. Louis, roads like I-64, I-70, and I-44 are seeing wet conditions and brief visibility drops. Gusts near 20 mph are possible, especially under heavier downpours. If you’re heading out, slow down and allow extra distance between vehicles.

Conditions improve quickly by Sunday morning as the system exits. Sunshine returns, bringing calmer winds and a high near 69°F. It will feel noticeably more comfortable after today’s damp start.

The warming trend continues into Monday with highs pushing the upper 60s, followed by a jump toward 80°F by Tuesday. That’s a quick swing back to spring warmth after today’s storm system.

By midweek, dry and pleasant weather dominates before another round of showers and thunderstorms develops late Thursday into Friday, signaling a more active spring pattern.

Five Day Forecast for St. Louis, MO:
Saturday: Showers and thunderstorms, high near 58°F
Sunday: Sunny, high near 69°F
Monday: Sunny, high near 68°F
Tuesday: Mostly sunny, high near 80°F
Wednesday: Sunny, high near 82°F