Sunday morning, June 7, in St. Louis starts off muggy and mostly clear, with temperatures hovering around 72°F and the dew point near 70°F. By this afternoon, expect the high to climb to around 90°F, with a slight chance of a passing shower around midday. Scattered storms may bubble up later in the day and could bring brief heavy downpours or gusty winds, so it is smart to keep those outdoor plans a little flexible.
Afternoon And Evening
The best window for a stray shower looks to be late morning, roughly between 11 a.m. and 1 p.m. on Sunday, June 7, followed by a continued slight chance of showers and thunderstorms into the late afternoon. Southeast winds will run light to occasionally breezy, about 2 to 13 mph. The National Weather Service St. Louis notes that "scattered showers and thunderstorms capable of locally heavy rainfall are expected today and tomorrow" and cautions that isolated damaging wind gusts are possible across central and southeastern Missouri. Large hail and tornadoes are not expected, but any thunderstorm can kick up sudden gusts that may disrupt small outdoor events or send loose items flying.
Plan For The Week
Tonight into Monday morning stays on the warm side, with lows near 72°F and shower and thunderstorm chances ticking up after midnight. If you need a place to cool off during the hotter stretch later this week, the City of St. Louis cooling centers maintains a list of air-conditioned public spaces and services. Have a backup option for evening activities, and be ready for damp roads anywhere storms move through.
Monday And Midweek
Monday, June 8, looks like the wettest day, with showers and thunderstorms likely and a high near 86°F. Forecasters put the chance of precipitation around 80% for Monday. Heat and humidity then come roaring back from Tuesday, June 9, through Thursday, June 11, with highs climbing into the mid 90s, about 94 to 96°F, and heat index values approaching 100°F on Wednesday, June 10. A frontal passage sometime late Thursday or Friday should finally bring some relief. Keep checking forecasts through the week, since pop-up storms on the wetter days could briefly cut visibility and slow down the evening commute.
