| NWS Forecast for: Monroe County Issued by: National Weather Service Saint Louis, MO Last Update: 1023 PM CDT Mon Aug 3 2026 | |
| Overnight: Mostly clear. Lows in the mid 60s. Southeast winds around 5 mph. Tuesday: Sunny. Highs in the upper 80s. South winds around 5 mph. Tuesday Night: Partly cloudy. Lows around 70. Southeast winds around 5 mph. Wednesday: Mostly sunny. A slight chance of showers and thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. South winds around 5 mph. Chance of rain 50 percent. Wednesday Night: A chance of thunderstorms. Showers. Lows in the upper 60s. Northeast winds around 5 mph. Chance of rain 90 percent. Thursday: Mostly cloudy with a chance of showers with a slight chance of thunderstorms in the morning, then partly sunny in the afternoon. Highs in the lower 80s. Chance of rain 50 percent. Thursday Night: Partly cloudy. Lows in the mid 60s. Friday: Mostly sunny. A slight chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent. Friday Night: A slight chance of thunderstorms in the evening. Mostly clear with a slight chance of showers. Lows in the mid 60s. Chance of rain 20 percent. Saturday Through Sunday Night: Mostly clear. Highs in the upper 80s. Lows in the lower 70s. Heat index values up to 100. Monday: Mostly sunny. Highs around 90. Heat index values up to 100. | |
| Zone Forecast: Monroe County | |
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