ST. LOUIS, Mo.–Ill. – Warm fall sunshine across the St. Louis metro will give way to showers and possible thunderstorms by Saturday morning, ending the week with slick roads and soggy yards. Commuters and weekend travelers along I-70, I-64, and I-55 should be alert for slower traffic and reduced visibility during the first half of the weekend.
According to the National Weather Service in St. Louis, highs will stay in the mid-80s through Friday before a cold front sweeps in from the Plains. The front will bring scattered showers and a few rumbles of thunder Friday night through early Saturday, with a 70% chance of rain for the bi-state metro area. Though severe weather isn’t expected, brief heavy rain could impact morning soccer games, farmers markets, and outdoor festivals.
Saturday’s highs will fall into the upper 70s, followed by clearing skies and cooler, breezy conditions by late afternoon. By Sunday, sunshine returns with crisp fall air and highs near 68°F — ideal for pumpkin patch visits, park outings, and fall decorating. Early next week looks dry and mild, keeping Halloween setups and leaf-peeping plans right on schedule.
Residents are urged to secure decorations and check local event updates before heading out Saturday morning. Drivers should allow extra travel time during wet conditions and avoid flooded low spots, particularly along Metro East roadways and near river crossings.
Five-Day Forecast for St. Louis, MO:
Wed: 85/62 – Sunny and warm; light southeast breeze.
Thu: 83/60 – Partly cloudy; mild.
Fri: 84/65 – Partly sunny; chance of evening rain.
Sat: 76/53 – Morning showers, isolated thunder; cooler afternoon.
Sun: 68/48 – Sunny, crisp; great for fall outings.
