Missouri greets Monday with rattling windows and snapping tree limbs as strong northwest winds sweep across the St. Louis region. Flags strain, loose debris shifts across parking lots, and the cold air feels sharper with every gust.
A Wind Advisory remains in effect for eastern Missouri and southwest Illinois through early Monday morning. Wind gusts have reached 40 to 45 mph, making travel difficult, especially for high-profile vehicles. Temperatures hover near 21 degrees, but wind chills dip into the single digits, adding an extra layer of bite.
According to the National Weather Service in St. Louis, the strongest winds persist through the early commute before slowly easing later this morning. Unsecured holiday decorations, trash bins, and outdoor furniture may still be blown around. Spotty power outages remain possible where tree limbs contact lines.
Drivers along I-64, I-70, and I-55 should expect sudden crosswinds, especially on bridges and open stretches. Reduced control is possible for trucks, vans, and vehicles towing trailers. Plan extra time and keep both hands on the wheel.
Conditions improve this afternoon as winds gradually relax and skies turn brighter. Highs reach the upper 20s Monday before a colder night settles in. Tuesday brings calmer weather and sunshine, with highs near the upper 30s.
Looking ahead, temperatures rebound midweek. Wednesday climbs into the 40s, while New Year’s Day 2026 appears dry and seasonable for holiday plans and travel. Even so, repeated cold nights mean refreezing remains possible on untreated roads.
Five-Day Outlook for St. Louis, Missouri
- Monday: Windy early, improving, high 27
- Tuesday: Sunny, calmer, high 37
- Wednesday: Mostly sunny, high 44
- New Year’s Day: Mostly sunny, high 40
- Thursday: Partly cloudy, high 43
