Update Schedule Notice
This page is only updated once daily and has not been updated since this morning. This will not be updated 2 times in a day unless a weather alert is issued. For real-time updates, please check local NOAA Weather Radio or the National Weather Service.
Last Updated: Monday, March 2, 2026 at 6:00 AM CST
St. Charles, MO
St. Charles County • Updated This Morning
No Active Alerts
39°
Feels like 33°
Cloudy with Slight Chance of Rain
Today's High
46°
Tonight's Low
40°
Wind
E 5-10 mph
Humidity
77%
Precipitation
21%
UV Index
2 (Low)
Visibility
10 mi
Pressure
29.8"
5-Day Forecast
Tonight
40°
Rain Showers Likely
Tuesday
62°
49°
Showers & Thunderstorms
Wednesday
63°
52°
Thunderstorms Likely
Thursday
69°
55°
Rain Showers
Friday
74°
52°
Thunderstorms
Hourly Forecast for Monday
Now
39°
10 AM
41°
11 AM
43°
12 PM
45°
1 PM
46°
2 PM
46°
3 PM
45°
4 PM
44°
5 PM
43°
6 PM
42°
7 PM
41°
8 PM
40°