| NWS Forecast for: St. Louis City Issued by: National Weather Service Saint Louis, MO Last Update: 127 AM CDT Thu Jun 18 2026 |  |
| Rest Of Tonight: Partly cloudy. Lows in the upper 60s. West winds 5 to 10 mph with gusts up to 20 mph. Thursday: Mostly sunny in the morning, then mostly cloudy with a chance of showers in the afternoon. Cooler with highs in the upper 70s. Northwest winds 5 to 10 mph. Chance of rain 30 percent. Thursday Night: Partly cloudy in the evening, then clearing. Lows around 60. Northwest winds 5 to 10 mph in the evening, becoming light and variable. Juneteenth: Mostly sunny. Highs in the mid 80s. Northwest winds around 5 mph. Friday Night: Mostly cloudy. Lows in the mid 60s. Northeast winds around 5 mph, becoming south after midnight. Saturday: Mostly sunny. Highs in the mid 80s. Saturday Night: Partly cloudy in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. Chance of rain 40 percent. Sunday: A chance of thunderstorms. Showers. Highs in the lower 80s. Chance of rain 90 percent. Sunday Night: Showers with a slight chance of thunderstorms in the evening, then a chance of showers after midnight. Lows in the lower 60s. Chance of rain 90 percent. Monday: Partly sunny. A slight chance of showers in the morning. Highs in the upper 70s. Chance of rain 20 percent. Monday Night And Tuesday: Partly cloudy. Lows in the upper 50s. Highs in the upper 70s. Tuesday Night: Mostly clear in the evening, then becoming partly cloudy. Lows in the lower 60s. Wednesday: Mostly sunny. Highs in the lower 80s. | |
| Zone Forecast: St. Louis City | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |