| NWS Forecast for: Monroe County Issued by: National Weather Service Saint Louis, MO Last Update: 543 AM CDT Tue Sep 15 2026 | |
| Today: Mostly sunny. A slight chance of showers and thunderstorms this morning, then a chance of showers and thunderstorms this afternoon. Highs in the lower 90s. Southwest winds around 10 mph, becoming west this afternoon. Gusts up to 25 mph. Chance of rain 50 percent. Heat index values up to 103. Tonight: Showers and thunderstorms likely. Lows in the upper 60s. North winds 5 to 10 mph. Chance of rain 70 percent. Wednesday: Cloudy with a chance of showers and thunderstorms in the morning, then partly sunny in the afternoon. Highs in the upper 80s. East winds around 5 mph. Chance of rain 50 percent. Wednesday Night: Partly cloudy. A chance of showers and thunderstorms after midnight. Humid with lows in the lower 70s. East winds around 5 mph, becoming south around 5 mph after midnight. Chance of rain 40 percent. Thursday: Mostly sunny. A slight chance of showers and thunderstorms in the morning. Humid with highs in the upper 80s. Northwest winds around 5 mph. Chance of rain 20 percent. Heat index values up to 100. Thursday Night And Friday: Partly cloudy. A slight chance of showers and thunderstorms. Lows in the upper 60s. Highs in the upper 80s. Chance of rain 20 percent. Friday Night: Mostly clear. Lows around 70. Saturday: Mostly sunny with a chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 40 percent. Saturday Night And Sunday: Mostly cloudy. A chance of showers and thunderstorms. Lows in the mid 60s. Highs in the mid 70s. Chance of rain 50 percent. Sunday Night And Monday: Mostly cloudy. A slight chance of showers and thunderstorms. Lows in the upper 50s. Highs in the lower 70s. Chance of rain 20 percent. | |
| Zone Forecast: Monroe County | |
Visit your local NWS office at: https://www.weather.gov/lsx/ |