Missouri wakes up to a crisp 34-degree start across the St. Louis metro, with calm winds and a pale winter sky stretching over the Mississippi River. Side streets feel cold underfoot, and a few damp patches from earlier melt could turn slick before temperatures rise.
Sunshine takes over by afternoon. Highs climb to 54 degrees, easing the February chill and melting remaining snow piles. Drivers along I-64 and I-44 should still watch shaded ramps late in the day. Refreeze becomes a concern once temperatures fall back to near 34 degrees tonight.
Friday turns even milder. Bright sun pushes highs to 59 degrees with light south winds. It will feel closer to early spring than mid-February. Outdoor plans look solid through sunset.
Changes arrive Saturday. Clouds thicken, and rain becomes likely by afternoon. Highs reach 52 degrees before steadier rain develops. Roads may turn wet and slick through evening, especially near downtown St. Louis and across the Poplar Street Bridge into Illinois. Rain continues Saturday night with an 80 percent chance before tapering.
Sunday trends drier and warmer again. A brief morning shower is possible, then sunshine returns with highs near 59 degrees. Valentine’s weekend overall stays mild, just damp at times.
Early next week surges even warmer. Washington’s Birthday approaches 62 degrees, followed by mid-60s Tuesday and upper 60s by Wednesday. The 6–10 day outlook favors above-normal temperatures across Missouri and Illinois, signaling a sustained thaw pattern with periodic rain chances instead of snow.
Five-Day Outlook for St. Louis, MO:
Friday: Sunny, high 59
Saturday: Rain likely, high 52
Sunday: Mostly sunny, high 59
Monday: Mostly sunny, high 62
Tuesday: Mostly cloudy, high 66
