Light Snow and Freezing Travel Conditions Expected in St. Louis as Missouri Enters a Cold Early-December Weekend
ST. LOUIS, MISSOURI — A crisp December chill has settled over eastern Missouri this morning as clouds thicken across the St. Louis metro, setting the stage for a round of light rain and snow showers expected by late afternoon. Forecasters warn that even minimal snowfall could create slick travel conditions along I-70, I-55, and Route 40 during the busy evening commute.
Light Accumulation Expected, but Freezing Temps Could Create Hazardous Roads
The National Weather Service in St. Louis reports that this system will be weak and fast-moving, with snowfall totals staying below one inch across most of the metro area. Still, temperatures near freezing mean patchy ice could develop on bridges, ramps, and untreated surfaces.
Drivers are advised to slow down during:
- The late-day Wednesday commute
- Early Thursday morning travel
- Elevated roads prone to quick freezing
Even a brief period of mixed precipitation could create dangerous spots for rush-hour travel.
Dry, Sunny, and Cold Conditions Take Over Thursday Into Saturday
By Thursday morning, the entire region dries out quickly. Sunshine returns, but highs remain locked in the mid-20s to low-30s, marking a firm arrival of early-winter air across Missouri and Illinois.
Friday and Saturday remain mostly sunny with light winds, cold mornings in the teens, and highs climbing only into the upper 30s.
Meteorologists say this pattern reflects a classic early-December setup: quick-moving systems, light snow chances, and reinforcing shots of colder air behind each front.
Warmer Air Returns Sunday With a Slight Chance of Rain
By Sunday, temperatures may nudge upward as warmer southern air moves into the region. This shift brings a slight chance of rain, though moisture looks limited and no major storms are expected.
Long-range weather models hint at another winter system next week, which could bring additional snow chances depending on the storm track.
5-Day Outlook for St. Louis, Missouri (Dec. 3–7)
Thursday: Mostly sunny, high 24°F, low 13°F
Friday: Mostly sunny, high 38°F, low 26°F
Saturday: Partly sunny, high 38°F, low 26°F
Sunday: Mostly cloudy, chance of rain, high 36°F, low 27°F
Monday: Partly sunny, high 35°F, low 24°F
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