| NWS Forecast for: St. Louis County Issued by: National Weather Service Saint Louis, MO Last Update: 603 AM CDT Sat May 16 2026 | |
Today: Mostly cloudy with a chance of thunderstorms. Showers likely, mainly this morning. Highs in the lower 80s. South winds 5 to 10 mph with gusts up to 20 mph. Chance of rain 60 percent. Tonight: Partly cloudy. A slight chance of showers and thunderstorms in the evening. Lows in the mid 60s. Southeast winds 5 to 10 mph. Chance of rain 20 percent. Sunday: Sunny. Highs around 90. South winds 15 to 20 mph with gusts up to 30 mph. Sunday Night: Mostly clear in the evening, then becoming partly cloudy. Lows around 70. South winds 15 to 20 mph with gusts up to 30 mph. Monday: Partly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent. Monday Night: Partly cloudy with a chance of showers and thunderstorms. Lows around 70. Chance of rain 50 percent. Tuesday: A chance of thunderstorms. Showers. Highs in the mid 80s. Chance of rain 80 percent. Tuesday Night: Showers likely with a chance of thunderstorms in the evening, then showers likely with a slight chance of thunderstorms after midnight. Cooler with lows around 60. Chance of rain 70 percent. Wednesday: Mostly cloudy with a 20 percent chance of showers. Cooler with highs in the lower 70s. Wednesday Night: Mostly cloudy. Lows in the lower 50s. Thursday: Mostly sunny. Highs in the lower 70s. Thursday Night: Partly cloudy. A slight chance of showers after midnight. Lows in the mid 50s. Chance of rain 20 percent. Friday: Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the upper 70s. Chance of rain 20 percent. | |
| Zone Forecast: St. Louis County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |