MISSOURI — A crisp December chill hangs over eastern Missouri this morning as clouds build over the St. Louis metro area. By late afternoon, light rain and snow showers will drift through, creating slick road conditions along I-70, I-55, and Route 40 just in time for the evening drive.
According to the National Weather Service in St. Louis, this system won’t pack much punch — expect less than an inch of accumulation at most — but temperatures falling near freezing could still cause patchy ice on bridges and untreated roads. Motorists should use extra caution during the late-day commute and early Thursday travel hours.
By Thursday, the region dries out quickly. Sunshine returns, though highs stay chilly in the mid-20s to low-30s, reminding residents that winter has firmly arrived in Missouri and Illinois. Friday and Saturday continue mostly sunny with light winds and cold mornings near the teens, before a slight chance of rain returns Sunday as warmer air sneaks back in from the south.
Meteorologists say this pattern reflects a classic early-December transition, with fast-moving systems delivering small snow chances followed by clear, cold air. While no major storms are on the horizon yet, long-range models hint at another winter system next week.
For now, bundle up, take it slow on slick roads, and prepare for a frosty but calmer weekend ahead.
How’s the weather where you are in Missouri or Illinois? Share your local snow reports below.
5-Day Outlook for St. Louis, MO (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.
