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Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Overcast
55°F
13°C
| Humidity | 96% |
| Wind Speed | W 7 mph |
| Barometer | 29.80 in (1008.8 mb) |
| Dewpoint | 54°F (12°C) |
| Visibility | 10.00 mi |
| Wind Chill | 53°F (12°C) |
| Last update | 9 May 7:54 am CDT |
Extended Forecast for
St. Charles County Smartt Airport MO
Today

High: 81 °F
Becoming
SunnyTonight

Low: 53 °F
Scattered
ShowersSunday

High: 68 °F
Partly Sunny
Sunday Night

Low: 44 °F
Mostly Clear
Monday

High: 72 °F
Sunny
Monday Night

Low: 47 °F
Mostly Clear
Tuesday
High: 81 °F
Sunny then
Slight Chance
T-stormsTuesday Night

Low: 56 °F
Chance
T-stormsWednesday

High: 78 °F
Sunny
Detailed Forecast
Today
Mostly cloudy through mid morning, then gradual clearing, with a high near 81. West wind 7 to 14 mph, with gusts as high as 21 mph.
Tonight
Scattered showers and thunderstorms. Increasing clouds, with a low around 53. Southwest wind 6 to 9 mph becoming north after midnight. Chance of precipitation is 40%.
Sunday
Partly sunny, with a high near 68. North wind around 10 mph.
Sunday Night
Mostly clear, with a low around 44. North wind 5 to 7 mph becoming calm in the evening.
Monday
Sunny, with a high near 72. Calm wind becoming northwest 5 to 8 mph in the afternoon.
Monday Night
Mostly clear, with a low around 47.
Tuesday
A 20 percent chance of showers and thunderstorms after 1pm. Sunny, with a high near 81.
Tuesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 56.
Wednesday
Sunny, with a high near 78.
Wednesday Night
Clear, with a low around 49.
Thursday
Sunny, with a high near 79.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Friday
A 20 percent chance of showers. Mostly sunny, with a high near 85.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
St. Charles County Smartt Airport MO
38.94°N 90.45°W (Elev. 427 ft)
38.94°N 90.45°W (Elev. 427 ft)
8:06 am CDT May 9, 2026
8am CDT May 9, 2026-6pm CDT May 15, 2026



