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NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment

After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >

Thunderstorms and associated heavy rainfall will be able to easily produce flash flooding across portions of Missouri and Illinois through this evening. A Flood Watch is in effect for the area through the evening. Stay alert while driving, never drive into water over the roadway!
Summer is on it's way, and that means that these first several days of hot and humid conditions could take our bodies by surprise! We haven't acclimated to these conditions just yet, so be sure to take precautions when outside this week. Tuesday and Wednesday will be the hottest of the period, with a Heat Advisory in effect for many portions of the area on Tuesday. Temperatures will peak in the low to mid 90s, and with high humidity it will feel more like 100-108°F. This won't last very long though, with rain chances returning Thursday, and a cold front moving into the area Friday, temperatures will start to cool by the end of the work week.
After two hot and humid days Tuesday and Wednesday, showers and thunderstorms will return to the area ahead of a cold front that will bring temperatures back into the 80s for Friday.