St. Louis woke to clear, cool skies Monday morning, April 6, 2026, with temperatures around 43°F and light winds. The day will be mostly sunny with highs near 64°F, a mild spring window before things get a little weird later tonight. A jacket is still a smart move for the morning commute, and it is worth keeping an eye on the sky later, because a brief and very localized wintry mix is possible overnight in parts of the region.
Tonight: Narrow Snow Band Could Briefly Impact Northern Areas (Monday Night Into Tuesday Morning)
Clouds will increase late Monday and a narrow northwest to southeast band of precipitation is expected to develop across portions of northeast Missouri and west-central Illinois overnight. That band will likely begin as rain and could change to wet snow, with accumulations up to around 2 inches possible mainly on elevated and grassy surfaces. Warmer road temperatures should limit widespread impacts, although brief slick spots on bridges and overpasses are possible if a heavier burst sets up over one spot. Forecasters note the signal is localized and confidence is modest, so some neighborhoods may just see rain while others wake up to a coating of slush. More details are available from the National Weather Service.
Today: Sunny And Mild (Monday, April 6, 2026)
Sunshine should dominate this afternoon as temperatures climb from the low 40s into the mid 60s, with northwest winds around 5 to 12 mph, a pleasant setup for errands, dog walks, or an outdoor lunch before clouds return. The calm window is expected to hold until late evening when cloud cover pushes back into the northern metro ahead of that narrow band of rain and snow. For the full forecast, see the National Weather Service.
Wednesday Through The Weekend: Fast Warm-Up, Storm Chances Return
A faster warm-up begins Wednesday, April 8, 2026, with highs back near the low 70s and south winds increasing. Gusts into the low 20s mph are possible Wednesday afternoon as a more springlike pattern settles in. The pattern then turns more unsettled Thursday through the weekend as a frontal boundary stalls nearby, bringing daily chances for showers and thunderstorms and highs near 80 to 82 by Saturday and Sunday. If you have outdoor plans later in the week, it is wise to keep a backup plan and monitor updates from the National Weather Service, since timing for those hit-or-miss storms will matter.
Quick Tips
Today’s drives should be routine, but if you are heading out late Monday night or early Tuesday morning, be prepared for brief slick spots where heavier precipitation falls. If you have travel plans, check local road reports and forecasts before leaving; small delays are more likely overnight where steadier precipitation occurs.
