| NWS Forecast for: St. Louis County Issued by: National Weather Service Saint Louis, MO Last Update: 848 AM CDT Sun May 17 2026 | |
Today: Partly sunny. Warmer with highs in the upper 80s. South winds 15 to 20 mph with gusts up to 30 mph. Tonight: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 70s. South winds 15 to 20 mph with gusts up to 30 mph. Monday: Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the upper 80s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 70 percent. Monday Night: Partly cloudy with a slight chance of showers and thunderstorms. Lows around 70. South winds 15 to 20 mph. Chance of rain 20 percent. Tuesday: A chance of thunderstorms. Showers. Highs in the mid 80s. Southwest winds 10 to 15 mph with gusts up to 25 mph. Chance of rain near 100 percent. Tuesday Night: Showers likely with a chance of thunderstorms in the evening, then a chance of showers with a slight chance of thunderstorms after midnight. Cooler with lows in the upper 50s. Chance of rain 70 percent. Wednesday And Wednesday Night: Mostly cloudy. A 20 percent chance of showers. Highs in the lower 70s. Lows in the lower 50s. Thursday: Partly sunny. Highs in the lower 70s. Thursday Night: Mostly cloudy. A slight chance of showers after midnight. Lows in the mid 50s. Chance of rain 20 percent. Friday: Mostly cloudy with a chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 70s. Chance of rain 30 percent. Friday Night: Mostly cloudy with a 20 percent chance of showers. Lows in the upper 50s. Saturday: Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 20 percent. | |
| Zone Forecast: St. Louis County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |