Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
87°F
31°C
| Humidity | 34% |
| Wind Speed | SW 8 mph |
| Barometer | 29.67 in (1004.2 mb) |
| Dewpoint | 55°F (13°C) |
| Visibility | 10.00 mi |
| Heat Index | 85°F (29°C) |
| Last update | 26 Mar 6:54 pm CDT |
Extended Forecast for
4 Miles WNW Old Monroe MO
Tonight
Low: 40 °F
Breezy.
T-storms
Likely then
T-stormsFriday
High: 54 °F
Slight Chance
Showers then
Mostly SunnyFriday Night

Low: 29 °F
Mostly Clear
Saturday

High: 56 °F
Sunny
Saturday Night

Low: 41 °F
Partly Cloudy
Sunday

High: 70 °F
Partly Sunny
Sunday Night

Low: 56 °F
Partly Cloudy
Monday

High: 84 °F
Mostly Sunny
Monday Night

Low: 63 °F
Slight Chance
Rain
Detailed Forecast
Tonight
Showers and thunderstorms likely before 1am, then showers and possibly a thunderstorm between 1am and 4am, then a chance of showers after 4am. Low around 40. Breezy, with a southwest wind 8 to 13 mph becoming north 16 to 21 mph in the evening. Winds could gust as high as 33 mph. Chance of precipitation is 90%.
Friday
A 20 percent chance of showers before 8am. Cloudy through mid morning, then gradual clearing, with a high near 54. North wind 14 to 17 mph, with gusts as high as 26 mph.
Friday Night
Mostly clear, with a low around 29. North wind 5 to 10 mph becoming light after midnight. Winds could gust as high as 20 mph.
Saturday
Sunny, with a high near 56. Calm wind becoming south 5 to 7 mph in the morning.
Saturday Night
Partly cloudy, with a low around 41. South wind around 7 mph.
Sunday
Partly sunny, with a high near 70.
Sunday Night
Partly cloudy, with a low around 56.
Monday
Mostly sunny, with a high near 84.
Monday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 63.
Tuesday
A 20 percent chance of rain and thunderstorms. Partly sunny, with a high near 86.
Tuesday Night
A 40 percent chance of rain and thunderstorms. Mostly cloudy, with a low around 57.
Wednesday
A 40 percent chance of rain and thunderstorms. Partly sunny, with a high near 78.
Wednesday Night
Rain and thunderstorms likely. Mostly cloudy, with a low around 54. Chance of precipitation is 60%.
Thursday
Rain likely and possibly a thunderstorm. Mostly cloudy, with a high near 71. Chance of precipitation is 60%.
Additional Forecasts and Information
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ABOUT THIS FORECAST
Point Forecast:
4 Miles WNW Old Monroe MO
38.94°N 90.82°W (Elev. 525 ft)
38.94°N 90.82°W (Elev. 525 ft)
5:41 pm CDT Mar 26, 2026
7pm CDT Mar 26, 2026-6pm CDT Apr 2, 2026



