Wednesday
Chance of thunderstorms
High:
88°F
A 30 percent chance of showers and thunderstorms, mainly after 1pm. Mostly sunny, with a high near 88.
Saint Charles, MO Weather - Extended Forecast
Wednesday Night
Partly cloudy
Overnight low:
70°F
Partly cloudy, with a low around 70.
Thursday
Mostly sunny
High:
90°F
A 20 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 90.
Thursday Night
Partly cloudy
Overnight low:
73°F
Partly cloudy, with a low around 73.
Friday
Mostly sunny
High:
93°F
Friday Night
Partly cloudy
Overnight low:
75°F
Saturday
Sunny
High:
95°F
Saturday Night
Mostly clear
Overnight low:
76°F
Sunday
Sunny
High:
96°F