| NWS Forecast for: Ste. Genevieve County Issued by: National Weather Service Saint Louis, MO Last Update: 403 PM CDT Thu Aug 13 2026 |  |
Tonight: Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 109 early this evening. Friday: Mostly sunny. Hot with highs in the upper 90s. South winds around 5 mph. Heat index values up to 112. Friday Night: Mostly clear. Lows in the mid 70s. South winds 5 to 10 mph. Heat index values up to 112 early in the evening. Saturday: Sunny, hot with highs in the upper 90s. Southwest winds around 5 mph. Heat index values up to 110. Saturday Night: Mostly clear. Lows in the mid 70s. Southwest winds around 5 mph. Heat index values up to 109 early in the evening. Sunday: Sunny, hot with highs in the upper 90s. Heat index values up to 110. Sunday Night: Partly cloudy with a slight chance of showers. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 110 early in the evening. Monday: Mostly sunny. A chance of showers and thunderstorms in the afternoon. Not as warm with highs in the upper 80s. Chance of rain 40 percent. Monday Night: Partly cloudy. Lows in the upper 60s. Tuesday And Tuesday Night: Mostly clear. Highs around 90. Lows around 70. Wednesday: Mostly sunny. Highs in the lower 90s. Heat index values up to 100. Wednesday Night And Thursday: 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: Ste. Genevieve County | |
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