Friday
Partly sunny
High:
40°F
Partly sunny, with a high near 40. Northwest wind 8 to 11 mph, with gusts as high as 20 mph.
Saint Charles, MO Weather - Extended Forecast
Friday Night
Mostly cloudy
Overnight low:
21°F
Mostly cloudy, with a low around 21.
Saturday
Mostly cloudy
High:
32°F
Mostly cloudy, with a high near 32.
Saturday Night
Mostly cloudy
Overnight low:
9°F
Mostly cloudy, with a low around 9.
Sunday
Sunny
High:
23°F
Sunday Night
Mostly clear
Overnight low:
13°F
Monday
Mostly sunny
High:
38°F
Monday Night
Mostly cloudy
Overnight low:
28°F
Tuesday
Mostly cloudy
High:
45°F