National Weather Service forecast
St. Charles, Missouri Weather
St. Charles 7-Day Forecast
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Overnight54°FSlight Chance Light Rain15% chance of precipitation
A slight chance of rain before 2am, then a slight chance of drizzle between 2am and 5am. Mostly cloudy, with a low around 54. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%.
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Wednesday61°FMostly Cloudy7% chance of precipitation
Mostly cloudy, with a high near 61. West wind 8 to 15 mph.
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Wednesday Night45°FPartly Cloudy
Partly cloudy, with a low around 45. West wind around 7 mph.
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Thursday63°FSunny
Sunny. High near 63, with temperatures falling to around 57 in the afternoon. West wind 7 to 12 mph.
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Thursday Night46°FMostly Cloudy3% chance of precipitation
Mostly cloudy, with a low around 46. Northwest wind around 7 mph.
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Friday56°FPartly Sunny2% chance of precipitation
Partly sunny. High near 56, with temperatures falling to around 52 in the afternoon.
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Friday Night37°FPartly Cloudy
Partly cloudy, with a low around 37.
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Saturday55°FMostly Sunny
Mostly sunny, with a high near 55.
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Saturday Night36°FPartly Cloudy
Partly cloudy, with a low around 36.
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Sunday61°FSunny1% chance of precipitation
Sunny, with a high near 61.
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Sunday Night38°FClear
Clear, with a low around 38.
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Monday65°FSunny
Sunny, with a high near 65.
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Monday Night43°FClear
Clear, with a low around 43.
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Tuesday68°FSunny1% chance of precipitation
Sunny, with a high near 68.
Issued by the National Weather Service (LSX office), updated .
St. Charles Hourly Forecast
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St. Charles Weather Radar
Open the full radar for St. CharlesAbout St. Charles
- Population (2020 Census)
- 70,493
- Coordinates
- 38.796, -90.515
- Elevation
- 499 ft
- NWS forecast office
- LSX
- Time zone
- America/Chicago
- Sunrise today
- 6:32 AM CST
- Sunset today
- 4:58 PM CST
- Daylight today
- 10 h 27 min
St. Charles Weather Questions
What is the weather forecast for St. Charles, Missouri?
Overnight: A slight chance of rain before 2am, then a slight chance of drizzle between 2am and 5am. Mostly cloudy, with a low around 54. Southwest wind around 10 mph, with gusts as high as 21 mph. Chance of precipitation is 20%. Wednesday: Mostly cloudy, with a high near 61. West wind 8 to 15 mph.
Will it rain or snow in St. Charles this week?
Not much. The highest chance of precipitation in the 7-day forecast is 15%, Overnight.
How warm and how cold will it get in St. Charles this week?
The warmest day is Tuesday, with a high near 68°F. The coldest night is Saturday Night, with a low near 36°F.
What time are sunrise and sunset in St. Charles today?
Sunrise is at 6:32 AM CST and sunset is at 4:58 PM CST, for 10 h 27 min of daylight.
Weather near St. Charles
- Champ 5 mi
- St. Peters 5 mi
- Bridgeton 6 mi
- Maryland Heights 6 mi
- Hazelwood 6 mi
- Cottleville 8 mi
- St. Ann 8 mi
- Edmundson 9 mi