ST. LOUIS, MO – A cold, gray dawn hangs over the Gateway City this morning as Missouri and Illinois brace for the first hard frost of November. Damp leaves crunch underfoot, and the air carries a sharp chill signaling that the growing season has ended for much of the bi-state region. The National Weather Service in St. Louis has issued a Freeze Watch for Sunday morning, warning that sub-freezing temperatures may dip into the upper 20s across the metro and surrounding counties.
Residents are urged to bring in tender plants, insulate outdoor faucets, and protect pets from the cold. According to NWS meteorologists, patchy frost will begin forming late tonight across low-lying and rural areas from St. Charles to Belleville. Even city neighborhoods may briefly fall near freezing under clearing skies and calm winds.
The chill follows a damp Friday that left wet pavement across I-64 and I-55 corridors. While no precipitation is expected through Monday, light winds and clear skies will make Sunday morning the coldest stretch of the week. MoDOT advises early travelers to watch for isolated slick spots on bridges and shaded stretches during daybreak hours.
After the weekend freeze, a warming trend takes hold. Sunshine and a southerly breeze will lift highs into the 60s Monday and upper 60s Tuesday. Models hint at another cool-down late next week, though for now, the first week of November looks dry—perfect for fall yard cleanup or early holiday decorating before the next cold front.
Five-Day Forecast for St. Louis, MO:
Sat: 52/35 – Mostly cloudy; brief light rain possible midday.
Sun: 56/29 – Patchy frost early; sunny and cool.
Mon: 64/41 – Bright and mild; south breeze picks up.
Tue: 67/53 – Mostly sunny; warmer than normal for early November.
Wed: 71/48 – Breezy; clouds increase, cooler pattern building late week.
