St. Louis started Thursday, March 5, 2026, in a murky haze, with patchy to locally dense fog and rain showers likely before 8 a.m. Patchy drizzle was expected to hang on into mid-morning. Forecasters are calling for mostly cloudy skies the rest of the day, with a high near 67°F and light west winds through the afternoon.
Morning Commute: Fog, Drizzle And Slick Roads
A Dense Fog Advisory covered parts of the region early Thursday, cutting visibility to a quarter mile or less in spots. Drivers were urged to allow extra time, slow down, and stick with low beams. Showers should taper by mid-morning, but some fog and slick pavement may linger, particularly in low-lying neighborhoods.
The National Weather Service St. Louis pegged the chance of rain this morning at 60%, with a cooler, mostly cloudy day on tap once the worst of the fog and showers move out.
Late Week: Warm, Windy And Storms Rebuilding
Friday looks like a different season. Highs are expected to surge to around 79°F, with south winds near 9 to 17 mph and gusts that could push into the 30s in some areas. Showers and thunderstorms are forecast to redevelop Friday evening into Saturday morning, setting up a bumpy ride to the weekend.
Central and northeastern Missouri face the highest severe potential, with damaging winds and isolated tornadoes flagged as the main threats. That elevated risk comes from the Storm Prediction Center, which advises residents to stay tuned for watches and warnings late Friday night.
How To Ride Out The Rough Patch
Drivers should build in extra commute time, slow down in foggy stretches, and avoid plowing through standing water, since flash flooding can develop fast where storms repeatedly track over the same area. Ahead of Friday’s gusty winds, it is a good idea to secure loose outdoor items and keep a charged phone nearby for weather alerts. If thunderstorms are in the Friday night forecast where you are, consider shifting outdoor plans indoors.
