Todays weather in St. Louis MO - Sunday - 07 June 2026

St. Louis is waking up to 90 degrees this Sunday, and while the skies are partly sunny, the day carries a real edge. A 17% chance of rain showers works through the afternoon, nudging toward thunderstorms by evening. It's not a washout — but if you're spending time outside, keep an eye on the sky. Storms in St. Louis can develop faster than any forecast will warn you.Tonight raises the stakes. The storm probability climbs to 38%, with thunderstorms possible before midnight and again into the early morning hours. The overnight low settles near 72°F — warm, humid, and classic St. Louis summer. Southeast winds at 7 to 13 mph keep things steady but won't cool things down.The real headline is Monday. An 80% precipitation chance means showers and thunderstorms are expected to roll through most of the day, with a high near 86°F. If you have outdoor plans, reschedule now.Tuesday clears quickly — a few early showers before 7 a.m., then mostly sunny skies pushing near 94°F. By Wednesday, full summer returns: 96 degrees, almost no rain, pure heat.For your Sunday: dress for 90, pack a compact umbrella, and get indoors if you hear thunder. This is your daily St. Louis weather briefing — practical, specific, and under three minutes.This episode includes AI-generated content.