National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce
 Point Forecast: St. Charles County Smartt Airport MO
 38.94N 90.45W (Elev. 427 ft)
 Last Update: 5:41 am CDT Sep 15, 2026
Hourly Weather Forecast Graph
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Additional Forecasts and Information
International System of UnitsForecast Discussion
7-Day ForecastTabular Forecast
City Digital FcstCounty Digital Fcst
Hazardous WeatherRiver Stages
STL Climate SummaryCOU Climate Summary
UIN Climate SummaryLocal Climatology
Weather Roundup