Current Conditions
Mostly cloudy
Temp:
80°F
Wind: Calm
Humidity: 84%
Pressure: 30.06 in
Visibility: 10 miles
Observed at: 5:51 am CDT
Saint Charles, MO Weather
Today
Patchy fog
High:
96°F
A 40 percent chance of showers and thunderstorms, mainly after 2pm. Patchy fog before 8am. Otherwise, mostly sunny, with a high near 96. Heat index values as high as 107. Light south wind.
Tonight
Thunderstorms likely
Overnight low:
73°F
Showers and thunderstorms likely, mainly before 1am, then showers likely and possibly a thunderstorm after 1am. Mostly cloudy, with a low around 73. Northeast wind around 5 mph becoming light and variable in the evening. Chance of precipitation is 60%.