| NWS Forecast for: St. Louis City Issued by: National Weather Service Saint Louis, MO Last Update: 548 PM CDT Fri Jun 5 2026 | |
| Tonight: Mostly cloudy. Lows around 70. Southwest winds 10 to 15 mph. Saturday: Partly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Saturday Night: Mostly cloudy. A slight chance of showers and thunderstorms in the evening, then a chance of showers and thunderstorms after midnight. Lows around 70. South winds 5 to 10 mph. Chance of rain 40 percent. Sunday: Mostly cloudy. 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 mid 80s. Southeast winds 5 to 10 mph. Chance of rain 70 percent. Sunday Night: A chance of thunderstorms. A chance of showers in the evening, then showers after midnight. Lows around 70. Southeast winds 5 to 10 mph. Chance of rain 80 percent. Monday: Showers with a chance of thunderstorms in the morning, then showers with thunderstorms likely in the afternoon. Highs in the mid 80s. Chance of rain 90 percent. Monday Night: Showers likely with a chance of thunderstorms. Lows in the lower 70s. Chance of rain 70 percent. Tuesday: Mostly sunny with a chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105 in the afternoon. Tuesday Night: Mostly clear with a chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 40 percent. Heat index values up to 105 early in the evening. Wednesday: Sunny. Highs in the mid 90s. Heat index values up to 105 in the afternoon. Wednesday Night: Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. Thursday: Sunny, hot with highs in the mid 90s. Heat index values up to 110 in the afternoon. Thursday Night: Mostly clear with a slight chance of showers and thunderstorms. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 105 early in the evening. Friday: Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Hot with highs in the mid 90s. Chance of rain 20 percent. Heat index values up to 105. | |
| Zone Forecast: St. Louis City | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |