ST. LOUIS, Missouri–Illinois – Streetlights shimmer against damp pavement early this Sunday morning as light rain sweeps across the metro. Wind gusts rattle signs along I-70, and puddles glint under passing headlights — a brief burst of fall weather energy before skies clear and sunshine returns.
According to the National Weather Service in St. Louis, showers and a few rumbles of thunder will move through before midmorning, with clearing skies by midday. Winds from the northwest could gust near 35 mph as cooler, drier air spills in behind the departing system. By afternoon, the breeze will turn crisp and the sun will reclaim the skyline, pushing highs into the mid-60s.
Monday brings a quick rebound, with warm, dry air lifting highs to near 71°F under full sunshine. Winds will ease through the day, creating ideal conditions for outdoor work, errands, and leaf cleanup. Tuesday continues the pleasant stretch, though slightly warmer and breezier, before another weak front late in the week hints at a possible temperature dip and light rain chances.
By Thursday and Friday, a new trough slides into the central U.S., bringing highs back into the 50s and lows dipping into the 40s — a first brush of pre-Halloween chill for both Missouri and Illinois.
For now, though, St. Louis settles into a comfortable rhythm — damp streets drying, skies brightening, and a stretch of fall sunshine promising a calmer start to the week.
Five-Day Outlook for St. Louis, MO–IL:
Sun: 64/46 – Breezy showers early; clearing by afternoon.
Mon: 71/52 – Sunny and mild; light south wind.
Tue: 86/45 – Warm; breezy and bright.
Wed: 65/43 – Sunny; cool and pleasant.
Thu: 58/40 – Partly cloudy; early chill developing.
