Todays weather in St. Louis MO - Thursday - 28 May 2026

St. Louis is starting Thursday with patchy fog already burning off, giving way to a partly sunny sky and a high of 86 degrees. No rain, no severe weather alerts — just a warm, humid late-spring day that's going to feel like summer the moment you step outside.For your morning commute, the wind is light out of the northeast at two to nine miles per hour, so it won't add much to the heat index. That said, 86 degrees with lingering humidity means a warm walk to the car or bus stop. If you're heading into an air-conditioned office, light layers are smart — the gap between outside and inside temps will be noticeable.Tonight, clouds roll in and temperatures drop to a low around 66 degrees. Only a 6% chance of overnight rain, so nothing to worry about before bed.Looking ahead: Friday brings a mostly cloudy sky with a high near 80 and a slight 16% chance of late-afternoon showers around 4–5 p.m. Worth a glance at radar if you're commuting home. Saturday's rain odds climb to 33% — not a washout, but real enough to keep a light rain jacket handy if you have outdoor plans.The good news? Sunday through the middle of next week looks genuinely pleasant — mostly sunny with highs in the low-to-mid 80s and improving conditions each day.Your St. Louis daily weather briefing: practical, fast, and ready before your first cup of coffee. A YesWee production.This episode includes AI-generated content.