Missouri — A frosty sunrise greets St. Louis as winter officially begins, with clear skies, still air, and temperatures locked in the upper 20s early this morning. Windshields ice over quickly, and shaded sidewalks stay slick before sunrise.
According to the National Weather Service in St. Louis, temperatures rebound steadily today under mostly sunny skies, reaching the mid-40s by afternoon. Winds stay light, helping roads improve quickly after early-morning frost concerns fade.
Tonight remains calm and cold, with lows near 31 degrees. Patches of frost may redevelop, especially on bridges and elevated roadways across the metro area. Drivers heading out early Monday should remain alert for isolated slick spots.
The pattern changes fast after that. Clouds increase Monday as warmer air pushes north. Highs climb into the lower 50s, then surge further Tuesday as sunshine returns. By Tuesday afternoon, St. Louis reaches the lower 60s, a dramatic shift from the weekend chill.
This warming trend holds into midweek. Cloud cover increases Wednesday, but temperatures remain mild, near 69 degrees. Christmas travel looks favorable, with dry roads and above-average temperatures continuing into Christmas Day.
Christmas Day itself brings mostly sunny skies and highs near 74 degrees, feeling more like early fall than late December. That warmth may catch returning travelers off guard, especially after recent cold mornings.
The bigger concern becomes refreezing potential late at night early in the week, when daytime thawing meets overnight cooling. Watch for slick pavement during early morning commutes.
For now, winter’s arrival is quiet but sharp, followed by one of the warmer Christmas stretches in recent years. How cold did it feel stepping outside this morning?
Five-Day Outlook for St. Louis, Missouri
- Today: Mostly sunny, high near 44
- Monday: Increasing clouds, high near 53
- Tuesday: Sunny, high near 63
- Wednesday: Cloudy, high near 69
- Christmas Day: Mostly sunny, high near 74
