Missouri begins the morning under a hard winter chill, with frost clinging to rooftops and breath puffing white in the air. Pavement feels stiff, and shaded sidewalks remain slick from refreeze.
According to the National Weather Service, temperatures sit near 28 degrees early, with wind chills in the low 20s. Northeast winds gradually turn southeast later today, allowing highs to rebound into the upper 30s. Conditions stay dry, but drivers should watch for icy patches on bridges and ramps along I-64, I-70, and I-55 during the early commute.
Tonight remains mostly cloudy and cold. Lows dip near 27, setting up another round of refreezing before sunrise. Sunday brings a dramatic shift. Sunshine returns, winds strengthen from the southwest, and temperatures jump into the upper 40s. Snow piles soften quickly, creating wet pavement and pooling water near curbs.
Sunday night stays quiet and milder, with lows near 31. Monday delivers the headline change. Bright sun and light winds push highs into the upper 50s, signaling a clear February thaw across eastern Missouri and southwest Illinois. Melting accelerates, and runoff increases near storm drains and low spots.
By Tuesday, warmth peaks. Highs approach the upper 60s, nearly 40 degrees warmer than this morning. Clouds increase late, and a 20 percent chance of rain develops by afternoon. Rain becomes more likely Tuesday night, with a 60 percent chance as moisture deepens ahead of a midweek system. Wet roads could impact late-evening travel.
Wednesday cools slightly, with highs near 50 and lingering rain chances early. Looking into the 6–10 day window, above-normal temperatures persist, suggesting winter cold retreats for much of next week.
Heading out early or driving Monday night after snowmelt? Share what road conditions look like near you.
Five-Day Outlook for St. Louis, Missouri
- Today: Sunny, high near 38.
- Sunday: Mostly sunny, high near 47.
- Monday: Sunny, high near 57.
- Tuesday: Slight rain chance, high near 68.
- Wednesday: Chance of rain early, high near 50.
