St. Louis rolled into Thursday on a surprisingly comfortable note, with clear skies and temperatures near 63°F. Mostly sunny conditions are expected through the day, with a high near 82°F and light east winds around 6 mph. That brief cooldown will not last long, though, as scattered showers and a fresh blast of summer heat line up for late this week into early next week.
Late-Week Showers And Thunderstorms
A round of showers and scattered thunderstorms is expected to move in late Thursday night and spread across the area Friday, with the greatest chances Friday night into early Saturday. Some storms could bring locally heavy rainfall and brief downpours, especially where storms train or stall over the same spots, according to the National Weather Service.
Heat Builds Into Early Next Week
Once those possible showers move through Friday into Saturday morning, temperatures bounce back in a hurry. Saturday is expected to reach the upper 80s under partly sunny skies. Sunday and Monday crank things up even more, with highs in the mid-90s on Sunday and near 100°F on Monday, pushing afternoon heat indexes above 100 degrees in many neighborhoods. Temperatures are expected to ease slightly later next week as a weak front nudges through.
Where To Find Relief
If you or someone you check on is vulnerable to heat, the city keeps a list of cooling centers across neighborhoods. Central Branch Library (1301 Olive Street) and Five Star Senior Center (2832 Arsenal St) are two nearby options. Hours vary by site, so call ahead or check current availability. Full details are listed on the City of St. Louis cooling centers page, including locations and hours.
How To Plan
Thursday is the day to grab those outdoor plans, with comfortable temperatures and mostly sunny skies. By Friday, keep an eye on the radar, carry water, and have a backup plan in case heavy downpours move through. Light east to southeast winds today and Friday should keep conditions fairly calm on the river, but any thunderstorms can quickly kick up gusty winds. For weekend events and outdoor work, keep monitoring the forecast and try to schedule the most strenuous tasks for the cooler morning hours once the heat settles in early next week.
