St. Louis Basks in Brief Break Before Midweek Storms Hit Gateway City

St. Louis is starting Monday, August 17, under cloudy skies near 75 degrees, but the gray opening should give way to a mostly sunny afternoon. Temperatures will rise to about 85 degrees, with north winds around 7 to 10 mph making the air feel noticeably less heavy after a long stretch of heat and humidity.

Sunny Monday Brings A Brief Reset

The National Weather Service expects dry weather through Monday afternoon, with rain chances staying near zero and skies turning mostly sunny. Tonight will be one of the coolest in more than a week, with temperatures dropping to around 69 degrees in the St. Louis urban area and winds becoming light from the northeast, according to the National Weather Service.

Patchy fog could develop after 5 a.m. Tuesday, especially in low-lying areas and near the river corridor. Drivers heading out early Tuesday should be ready for pockets of reduced visibility, though the fog is expected to lift by midmorning.

Tuesday Warms Up Before Storms Move In

Tuesday should turn sunny after the morning fog, with a high near 88 degrees and light south winds. The next weather turn arrives Tuesday night, when showers and thunderstorms become likely after 1 a.m. Wednesday.

Wednesday brings a 70% chance of showers and thunderstorms, mostly cloudy skies and a high near 87 degrees. Another round of storms could continue Wednesday night into Thursday, and some storms may produce heavy rain.

Clearer, Cooler Weather Returns For The Weekend

Thursday remains unsettled, with showers and thunderstorms likely early and additional chances through the day before conditions begin to improve. By Friday, St. Louis should return to sunny weather with a high near 84 degrees, followed by mostly clear skies and a low around 67.

Saturday and Sunday look largely sunny and comfortable by late-summer standards, with highs near 86 and 84 degrees, respectively. No watches or warnings are currently posted for the St. Louis forecast area, but residents should keep an eye on updated storm timing from Tuesday night through Thursday.