Current Conditions
Partly cloudy
Temp:
78°F
Wind: From the S at 6 mph
Humidity: 74%
Pressure: 29.98 in
Visibility: 10 miles
Observed at: 11:51 pm CDT
Saint Charles, MO Weather
Tuesday
Chance of showers
High:
92°F
A chance of showers before 10am, then a slight chance of showers and thunderstorms between 10am and 1pm. Mostly cloudy, then gradually becoming sunny, with a high near 92. Heat index values as high as 107. Southwest wind 5 to 9 mph. Chance of precipitation is 40%.
Tuesday Night
Mostly clear
Overnight low:
75°F
Mostly clear, with a low around 75. Southwest wind 5 to 7 mph.