St. Louis is starting Wednesday on the gray and chilly side, with clouds, temperatures near 46°F (8°C) and light northerly breezes as of about 5:40 a.m. Skies should gradually thin into the afternoon, turning partly sunny with a high near 62°F. It stays dry today, but the quiet stretch will not last long as a more active pattern moves in later this week.
Afternoon Into Thursday
Light northwest winds of 2 to 6 mph will hold this afternoon while highs top out near 62°F. Tonight looks mostly clear with lows dipping into the mid-40s. According to the National Weather Service, there is only a slight chance of spotty showers tonight and a sunnier, milder Thursday ahead, with highs climbing into the upper 60s.
Forecasters also flag a small, less than 20 percent, chance of patchy frost in valleys and other sheltered spots overnight. If you live in a low-lying area and have tender plants already out, it would not hurt to give them a little protection.
Weekend Outlook And Storm Chances
Warmer air pushes back in Friday, May 8, and peaks Saturday, May 9. Highs should climb into the mid-70s to around 82°F before a cold front arrives Sunday, May 10. Showers and thunderstorms are likely at times from Friday night through Sunday. While widespread severe weather is not expected, several rounds of storms could shuffle outdoor plans.
For recent context on this stormier setup, see this May 5 storms update.
What To Watch
Patchy frost remains possible in low-lying and sheltered pockets overnight into Thursday morning, so gardeners should shield sensitive plants. Winds stay light through Thursday and then turn a bit breezier Friday ahead of the warm-up. If you have outdoor plans Saturday, expect warm, mostly sunny conditions, but keep an eye on the forecast for the timing of passing storms. Check for updated information before travel or events, since the exact timing and coverage of weekend storms may shift as forecasts are refined.
