St. Louis, Missouri – Confidence is growing that another round of colder-than-average temperatures will affect the St. Louis region this weekend and could linger into early next week.
According to the National Weather Service in St. Louis, there is an 80% chance that temperatures will run below seasonal averages from this weekend into next week, based on guidance from the Climate Prediction Center’s 6–10 day outlook. While exact temperature values remain uncertain, the signal strongly supports a renewed period of cold across eastern Missouri and southwest Illinois.
Typical late-January averages for the St. Louis area feature high temperatures between 35 and 41 degrees, with overnight lows ranging from 18 to 24 degrees. Forecast confidence is high that upcoming temperatures will fall below those norms, though forecasters caution that it is still unclear how cold it will get or how long the cold will persist.
This colder pattern follows a brief midweek moderation and suggests that residents should prepare for another stretch of winter-like conditions, particularly during overnight and early morning hours. Extended periods of cold can increase the risk of slick road surfaces, especially if any moisture is present from prior precipitation.
Drivers should remain cautious on Interstate 70, Interstate 64, Interstate 55, and Interstate 44, where refreezing can occur overnight even without new snowfall. Bridges, overpasses, and shaded roadways are especially vulnerable during prolonged cold spells.
The National Weather Service encourages residents to begin planning now, including preparing vehicles for cold weather, checking heating systems, and dressing appropriately for outdoor exposure. Commuters, students, and early-morning travelers may feel the greatest impacts during the coldest periods late this weekend into next week.
Forecasters emphasize that additional updates are expected as confidence increases regarding the severity and duration of the cold outbreak.
