| NWS Forecast for: St. Louis County Issued by: National Weather Service Saint Louis, MO Last Update: 1224 PM CDT Mon Jul 14 2025 |  |
This Afternoon: Mostly cloudy with a slight chance of showers and thunderstorms. Highs in the mid 80s. East winds around 5 mph. Chance of rain 20 percent. Tonight: Mostly cloudy. Lows in the lower 70s. Southeast winds around 5 mph. Tuesday: Mostly cloudy with a slight chance of showers and thunderstorms in the morning, then partly sunny with a chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. South winds around 5 mph. Chance of rain 50 percent. Tuesday Night: Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of thunderstorms in the evening. A slight chance of showers. Humid with lows in the lower 70s. South winds around 5 mph. Chance of rain 20 percent. Wednesday: Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Humid with highs in the lower 90s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values up to 104. Wednesday Night: Partly cloudy with a slight chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the mid 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. Thursday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 40 percent. Heat index values up to 105. Thursday Night And Friday: Mostly cloudy. A chance of showers and thunderstorms. Lows in the lower 70s. Highs in the upper 80s. Chance of rain 40 percent. Friday Night: Mostly cloudy in the evening, then becoming partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 70s. Chance of rain 20 percent. Saturday: 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 lower 90s. Chance of rain 30 percent. Heat index values up to 100. Saturday Night And Sunday: Partly cloudy. A slight chance of showers and thunderstorms. Lows in the lower 70s. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 100. | |
| Zone Forecast: St. Louis County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |