Monday
Mostly sunny
High:
71°F
Mostly sunny, with a high near 71. West wind 11 to 15 mph, with gusts as high as 26 mph.
Saint Charles, MO Weather - Extended Forecast
Monday Night
Mostly clear
Overnight low:
51°F
Mostly clear, with a low around 51.
Tuesday
Sunny
High:
80°F
Sunny, with a high near 80.
Tuesday Night
Slight chance of thunderstorms
Overnight low:
56°F
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 56.
Wednesday
Partly sunny
High:
80°F
Wednesday Night
Chance of showers
Overnight low:
58°F
Thursday
Chance of showers
High:
80°F
Thursday Night
Showers likely
Overnight low:
61°F
Friday
Showers
High:
74°F