Sunday
Slight chance of thunderstorms
High:
77°F
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Partly sunny, with a high near 77. Chance of precipitation is 50%.
Saint Charles, MO Weather - Extended Forecast
Sunday Night
Showers likely
Overnight low:
63°F
Showers likely and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
Monday
Chance of thunderstorms
High:
81°F
A chance of showers and thunderstorms, then showers likely and possibly a thunderstorm after 1pm. Partly sunny, with a high near 81. Chance of precipitation is 60%.
Monday Night
Chance of thunderstorms
Overnight low:
68°F
A 50 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68.
Tuesday
Chance of thunderstorms
High:
83°F
Tuesday Night
Chance of thunderstorms
Overnight low:
64°F
Wednesday
Chance of thunderstorms
High:
85°F
Wednesday Night
Chance of thunderstorms
Overnight low:
61°F
Thursday
Chance of showers
High:
79°F