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Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Mostly Cloudy
75°F
24°C
| Humidity | 90% |
| Wind Speed | S 6 mph |
| Barometer | 29.71 in (1005.5 mb) |
| Dewpoint | 72°F (22°C) |
| Visibility | 10.00 mi |
| Last update | 31 Jul 10:54 pm CDT |
Extended Forecast for
3 Miles NNE Saint Peters MO
Tonight
Low: 68 °F
Chance
T-stormsSaturday
High: 77 °F
Chance
Showers then
Showers
LikelySaturday Night
Low: 67 °F
Chance
ShowersSunday
High: 81 °F
Slight Chance
Showers then
Mostly SunnySunday Night
Low: 64 °F
Partly Cloudy
Monday
High: 83 °F
Mostly Sunny
Monday Night
Low: 65 °F
Mostly Clear
Tuesday
High: 86 °F
Sunny
Tuesday Night
Low: 67 °F
Mostly Clear
Detailed Forecast
Tonight
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 68. West wind around 10 mph, with gusts as high as 20 mph.
Saturday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Cloudy, with a high near 77. West wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 70%.
Saturday Night
A chance of showers and thunderstorms before 9pm, then a slight chance of showers after 2am. Cloudy, with a low around 67. North wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 40%.
Sunday
A slight chance of showers between 7am and 8am. Cloudy, then gradually becoming mostly sunny, with a high near 81. North wind around 15 mph, with gusts as high as 23 mph. Chance of precipitation is 20%.
Sunday Night
Partly cloudy, with a low around 64. North wind 5 to 9 mph becoming light in the evening.
Monday
Mostly sunny, with a high near 83.
Monday Night
Mostly clear, with a low around 65.
Tuesday
Sunny, with a high near 86.
Tuesday Night
Mostly clear, with a low around 67.
Wednesday
Sunny, with a high near 88.
Wednesday Night
Mostly clear, with a low around 70.
Thursday
A 20 percent chance of showers. Mostly sunny, with a high near 89.
Thursday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 72.
Friday
Mostly sunny, with a high near 91.
Additional Forecasts and Information
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Forecast AreaABOUT THIS FORECAST
Point Forecast:
3 Miles NNE Saint Peters MO
38.83°N 90.56°W (Elev. 420 ft)
38.83°N 90.56°W (Elev. 420 ft)
10:51 pm CDT Jul 31, 2026
11pm CDT Jul 31, 2026-6pm CDT Aug 7, 2026
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