St. Louis rolled into Sunday, February 1, 2026 on a brutally cold note, with clear skies and the thermometer scraping about 3°F at 5:40 a.m. CST. Temperatures are expected to claw their way into the upper 20s this afternoon, just in time for a quick shot at light snow that could turn untreated surfaces slick.
Afternoon Snow Chance
The National Weather Service puts the St. Louis metro’s chance for light snow after noon at roughly 20-40%, with the best odds along and east of the Mississippi River. Most neighborhoods are looking at nothing more than a dusting to a few tenths of an inch. A few localized spots could snag around a quarter inch, and new accumulation in general should stay under a half inch.
The prime window for flakes will be mid- to late afternoon into early evening, when passing snow showers could briefly knock down visibility and make road traction a bit dicey.
Commuter Impacts
Even with light totals, it will not take much to make things slick, especially on untreated side streets, neighborhood routes and bridges as readings hover near the freezing mark. The Missouri Department of Transportation notes that crews focus on interstates and major arteries first, so secondary roads may stay messy longer. Drivers are urged to check the Traveler Information Map before heading out.
If you have to be on the move, ease off the gas, give yourself extra stopping distance and leave plenty of room for plows and salt trucks to do their thing.
Tonight Into Monday
The chance for light snow lingers through the evening, with flurries possible before about 10 p.m. Sunday, February 1, 2026 before tapering off overnight. Lows will settle near 17°F under clearing skies.
Monday offers a brief breather from the wintry mix, with mostly sunny conditions and highs near 38°F as a modest warm-up slides through the region.
Bottom Line
This is not a blockbuster winter storm, but it is just enough to cause problems. Expect patchy slick spots during the afternoon and evening commute on Sunday, particularly on untreated and less-traveled roads. Give road crews time to work and skip nonessential trips if you can.
For live updates on timing and road conditions, check the National Weather Service and Missouri Department of Transportation before you head out.
