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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°