Missouri and western Illinois wake up to a crisp 34-degree morning across St. Louis, where a few clouds drift over the Arch and the Mississippi River reflects a pale winter sky. Wind chills hover closer to the upper 20s, adding a sharp edge to the air.
North winds around 8 mph keep it brisk early. Bridges along I-64 and I-70 could hold isolated slick spots from refreeze, especially in shaded areas. Give yourself a few extra minutes if you’re commuting before full sunrise.
Sunshine takes over today and pushes highs to 51 degrees. That’s a noticeable February rebound and the start of a steady warmup. Skies stay mostly clear tonight with lows near 33 as clouds begin increasing late.
Thursday turns mostly cloudy but mild, with highs near 50. By Friday, sunshine returns and temperatures climb to 56 degrees. The late-week pattern feels more like early spring than mid-winter.
Valentine’s Weekend brings changes. Saturday carries a 30 percent chance of rain, mainly in the afternoon, with highs near 53. Showers become more likely Saturday night into early Sunday, with a 40 percent chance of rain and lows near 42. Roads could turn wet at times, so plan ahead for evening plans.
Sunday rebounds to near 57 with only a slight rain chance early. Early next week trends even warmer. Washington’s Birthday approaches 61 degrees, and Tuesday surges toward the mid-60s. The 6–10 day outlook favors above-normal temperatures across Missouri and Illinois, reinforcing this February thaw.
Five Day Outlook for St. Louis, Missouri:
Today: Sunny, high 51°F.
Tonight: Increasing clouds, low 33°F.
Thursday: Mostly cloudy, high 50°F.
Friday: Mostly sunny, high 56°F.
Saturday: Chance of afternoon rain, high 53°F.
