Severe Thunderstorms and Heavy Rainfall for the Southwest; Heat Spreads Across the Center of the Nation
Moisture will continue to move into areas of the West. This will increase showers and thunderstorms coverage and intensity, with the risk of flash flooding and damaging wind gusts. Meanwhile, heat across the Southwest will expand into the center of the nation this weekend into early next week. Trends favor this heat will spread across the Ohio Valley, mid-Atlantic next week. Read More >
| NWS Forecast for: St. Louis City Issued by: National Weather Service Saint Louis, MO Last Update: 527 PM CDT Sat Aug 29 2026 | |
| Tonight: Partly cloudy this evening, then clearing. Lows in the mid 60s. South winds 5 to 10 mph. Sunday: Mostly sunny. Hot with highs in the mid 90s. South winds 5 to 10 mph. Sunday Night: Partly cloudy in the evening, then becoming mostly clear. Lows in the lower 70s. South winds 5 to 10 mph. Monday: Sunny, hot with highs in the upper 90s. South winds 5 to 10 mph. Monday Night: Mostly clear. Lows in the upper 70s. South winds 5 to 10 mph. Heat index values up to 101 early in the evening. Tuesday Through Thursday: Mostly clear. Hot. Highs around 100. Lows in the upper 70s. Heat index values up to 105. Thursday Night: Mostly clear. A slight chance of showers and thunderstorms after midnight. Lows in the upper 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 morning. Hot with highs in the mid 90s. Chance of rain 20 percent. Friday Night And Saturday: Partly cloudy. Lows in the mid 70s. Highs in the mid 90s. Heat index values up to 100. | |
| Zone Forecast: St. Louis City | |
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