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St. Charles, MO
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7-Day Forecast
Today
Mostly Sunny then Becoming Cloudy and Breezy
High: 61°
Increasing clouds with a high near 61. Breezy with a southeast wind 7 to 12 mph increasing to 16 to 21 mph in the afternoon.
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Tonight
Breezy. Mostly Cloudy then Slight Chance T-storms
Low: 54°
A 20% chance of showers and thunderstorms after 2am. Mostly cloudy with a low around 54. Breezy with a southeast wind 17 to 22 mph with gusts as high as 34 mph.
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Wednesday
T-storms and Breezy
High: 79°
Showers and thunderstorms. High near 79. Breezy with a south wind 21 to 24 mph with gusts as high as 43 mph. Chance of precipitation is 80%.
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Wednesday Night
Chance T-storms
Low: 49°
A 30% chance of showers and thunderstorms, mainly before 10pm. Partly cloudy with a low around 49. Southwest wind 10 to 15 mph becoming light west after midnight. Winds could gust as high as 23 mph.
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Thursday
Showers Likely
High: 62°
Showers likely, mainly after 1pm. Mostly cloudy with a high near 62. Calm wind becoming northeast 5 to 7 mph in the morning. Chance of precipitation is 70%.
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Thursday Night
Chance T-storms
Low: 46°
A chance of showers and thunderstorms before 1am, then a slight chance of showers. Mostly cloudy with a low around 46. Chance of precipitation is 40%.
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Friday
Chance Showers then Showers
High: 63°
A chance of showers and thunderstorms, then showers after 1pm. High near 63. Chance of precipitation is 80%.
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Friday Night
Heavy Rain
Low: 47°
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. Low around 47. Chance of precipitation is 100%.
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Saturday
Showers
High: 57°
Showers. High near 57. Chance of precipitation is 80%.
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Saturday Night
Showers Likely
Low: 40°
Showers likely. Mostly cloudy with a low around 40. Chance of precipitation is 70%.
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Sunday
Chance Showers
High: 54°
A 40% chance of showers and thunderstorms. Partly sunny with a high near 54.
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Sunday Night
Partly Cloudy
Low: 32°
Partly cloudy with a low around 32.
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Monday
Sunny
High: 53°
Sunny with a high near 53.
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Source: National Weather Service
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