St. Louis is in for a fast weather flip Sunday, swinging from a mild afternoon to a sloppy, wintry night as showers move in and temperatures drop. Highs should top out near 49F with a northeast breeze around 10 to 12 mph, but that rain is expected to turn to wet snow later tonight. A Winter Weather Advisory runs from Sunday evening into Monday morning, with most spots seeing little accumulation while a narrow band could pick up 24 inches and turn the Monday commute into a headache.
Evening And Overnight
Rain is expected to move in before 10 p.m. Sunday, then change to a rain and snow mix late tonight before tapering off by early Monday, according to the NWS St. Louis. Most of the region is forecast to see less than an inch of wet snow or slush, but forecasters are flagging a tight corridor, mainly along and north of I-70, where heavier rates could briefly stack up 24 inches. East to northeast winds around 8 to 12 mph will keep temperatures borderline for sticking on the still-warm roads, which should limit totals for many drivers but not eliminate slick spots.
Commute And Road Tips
If you have to be on the road Monday morning, plan on leaving early and slowing things down. Wet, slushy pavement and untreated bridges and overpasses could be slick, especially within that heavier snow band. You can check up-to-the-minute road conditions on the MoDOT traveler map or through state alerts before you head out. Give plow trucks and emergency crews extra space and expect slower travel across the metro and surrounding areas.
Rest Of The Week
The winter feel does not last long. After the brief wintry shot Monday morning, temperatures jump quickly, with highs climbing into the mid-60s on Tuesday and reaching the upper 60s to low 70s later in the week. Several rounds of showers and thunderstorms are likely through Friday, so any snow that does manage to stick will disappear in a hurry, even as the wet pattern continues. If you are trying to plan outdoor time, the best bets look to be Tuesday morning or brief, milder breaks later in the week between passing showers.
