Missouri starts the morning under gray skies, with damp air and gusty winds pushing across the St. Louis metro. The chill settles in quickly, hinting that winter is tightening its grip as the week unfolds.
Temperatures hover in the 40s early, but colder air presses in through the day. Winds strengthen, making it feel colder than readings suggest. According to the National Weather Service, temperatures fall steadily by afternoon, dropping toward the upper 30s as northwest winds gust over 30 mph at times. Drivers on exposed roads and bridges may notice sudden crosswinds.
Tonight turns sharply colder under clearing skies. Temperatures sink into the upper teens, allowing any lingering moisture to freeze. Black ice may develop on untreated roads, ramps, and sidewalks by early morning. Use caution if heading out late or before sunrise.
Thursday stays dry but cold. Clouds increase through the day, keeping highs near the mid-30s. Winds ease slightly, but the air remains brisk. By Thursday night, a weak system approaches, bringing a chance for light snow after dark. Accumulations look limited, but even a dusting could create slick conditions.
Friday offers some improvement. Skies turn partly sunny, and highs rebound into the mid-40s. Any early snow ends quickly, though shaded spots may stay icy. Friday night cools again, with lows near 21 and another chance for light snow before midnight.
The weekend stays firmly winterlike. Saturday remains partly sunny but cold, with highs near 28. Saturday night lows dip close to 10 degrees, locking in any refrozen moisture. Sunday brings sunshine but little warmth, with highs near the mid-20s.
Looking ahead to Jan 19–23, NOAA outlooks suggest near-normal precipitation for Missouri, while colder-than-average air lingers across much of the Midwest.
Five-Day Outlook for St. Louis, Missouri
Thursday: Increasing clouds, high near 35
Friday: Partly sunny, high near 45
Saturday: Partly sunny, high near 28
Sunday: Mostly sunny, high near 26
Monday: Mostly sunny, high near 31
