NWS St. Louis Announces Changes To May 16, 2025 Tornado Damage Assessment
After a year-long review of new ground survey data and aerial imagery, NWS St. Louis made several adjustments to the May 16, 2025 tornado damage assessment. Read More >
Hazardous Weather Conditions
Current conditions at
St. Charles, St. Charles County Smartt Airport (KSET)
Lat: 38.93°NLon: 90.43°WElev: 436ft.
Fair
66°F
19°C
| Humidity | 90% |
| Wind Speed | E 7 mph |
| Barometer | 29.89 in (1011.6 mb) |
| Dewpoint | 63°F (17°C) |
| Visibility | 7.00 mi |
| Last update | 17 May 3:54 am CDT |
Extended Forecast for
Old Monroe MO
Today
High: 90 °F
Mostly Sunny
Tonight
Low: 69 °F
Partly Cloudy
Monday
High: 87 °F
Showers
LikelyMonday Night
Low: 68 °F
Partly Cloudy
then Chance
ShowersTuesday
High: 84 °F
Showers
Tuesday Night
Low: 55 °F
Chance
ShowersWednesday
High: 69 °F
Partly Sunny
Wednesday Night
Low: 50 °F
Mostly Cloudy
Thursday
High: 72 °F
Partly Sunny
Detailed Forecast
Today
Mostly sunny, with a high near 90. South wind 6 to 15 mph, with gusts as high as 28 mph.
Tonight
Partly cloudy, with a low around 69. South wind around 11 mph, with gusts as high as 23 mph.
Monday
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 11am. Increasing clouds, with a high near 87. South wind 13 to 16 mph, with gusts as high as 28 mph. Chance of precipitation is 70%.
Monday Night
A chance of showers between 1am and 4am, then a chance of showers and thunderstorms after 4am. Partly cloudy, with a low around 68. South wind 11 to 14 mph, with gusts as high as 26 mph. Chance of precipitation is 30%.
Tuesday
Showers and possibly a thunderstorm. High near 84. South wind 9 to 14 mph becoming west in the afternoon. Winds could gust as high as 25 mph. Chance of precipitation is 90%.
Tuesday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 50%.
Wednesday
Partly sunny, with a high near 69.
Wednesday Night
Mostly cloudy, with a low around 50.
Thursday
Partly sunny, with a high near 72.
Thursday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 53.
Friday
A 30 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 76.
Friday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 57.
Saturday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 81.
Additional Forecasts and Information
Basemap Options
Click map to change the forecast location
Loading map...
Forecast AreaABOUT THIS FORECAST
Point Forecast:
Old Monroe MO
38.94°N 90.76°W (Elev. 499 ft)
38.94°N 90.76°W (Elev. 499 ft)
3:30 am CDT May 17, 2026
4am CDT May 17, 2026-6pm CDT May 23, 2026
Additional Resources
Radar & Satellite Image
Hourly Weather Forecast
