| NWS Forecast for: St. Francois County Issued by: National Weather Service Saint Louis, MO Last Update: 758 AM CDT Sun Jul 26 2026 |  |
Today: Mostly sunny. Patchy fog this morning. Isolated showers and thunderstorms this afternoon. Hot with highs in the upper 90s. Light and variable winds, becoming west around 5 mph this afternoon. Chance of rain 20 percent. Heat index values up to 111. Tonight: Partly cloudy. Humid with lows in the mid 70s. Light and variable winds, becoming southwest around 5 mph after midnight. Heat index values up to 108 early in the evening. Monday: Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Heat index values up to 108. Monday Night: Mostly clear. Lows in the upper 70s. Southwest winds around 5 mph. Heat index values up to 105 early in the evening. Tuesday: Mostly sunny. Hot with highs in the mid 90s. Northwest winds around 5 mph. Heat index values up to 106. Tuesday Night: A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening. Wednesday Through Thursday: Mostly clear. Highs in the upper 80s. Lows in the mid 60s. Thursday Night: Partly cloudy. A slight chance of showers after midnight. Lows in the upper 60s. Chance of rain 20 percent. Friday: Partly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent. Friday Night: Partly cloudy with a chance of showers with a slight chance of thunderstorms. Lows in the mid 60s. Chance of rain 40 percent. Saturday: Mostly sunny with a slight chance of showers. A slight chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 20 percent. | |
| Zone Forecast: St. Francois County | |
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