| NWS Forecast for: Calhoun County Issued by: National Weather Service Saint Louis, MO Last Update: 1158 PM CDT Thu Sep 17 2026 |  |
Overnight: Mostly clear. Lows in the lower 70s. North winds around 5 mph. Friday: Mostly sunny. Humid with highs in the lower 90s. Northeast winds 5 to 10 mph. Heat index values up to 103. Friday Night: Mostly clear. A slight chance of showers and thunderstorms in the evening. Lows in the upper 60s. East winds 5 to 10 mph, becoming southeast after midnight. Chance of rain 20 percent. Saturday: Partly sunny. Highs in the lower 90s. Southwest winds 5 to 10 mph. Saturday Night: Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows around 70. Southwest winds around 5 mph. Chance of rain 20 percent. Sunday And Sunday Night: Mostly cloudy. A chance of showers and thunderstorms. Highs around 90. Lows in the mid 60s. Chance of rain 50 percent. Monday: Showers likely with a slight chance of thunderstorms in the morning, then a chance of showers and thunderstorms in the afternoon. Cooler with highs in the upper 70s. Chance of rain 60 percent. Monday Night: A slight chance of thunderstorms in the evening. Mostly cloudy with a slight chance of showers. Lows in the upper 50s. Chance of rain 20 percent. Tuesday: Partly sunny with a 20 percent chance of showers. Highs in the lower 70s. Tuesday Night: Mostly cloudy in the evening, then becoming partly cloudy. Lows in the mid 50s. Wednesday Through Thursday: Partly cloudy. Highs in the upper 70s. Lows in the upper 50s. | |
| Zone Forecast: Calhoun County | |
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