| National Weather Service Forecast for:
St. Charles County Issued by: NWS National Weather Service Saint Louis, MO |
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| Updated: 336 AM CDT Sun Apr 18 2021 | ||||||||||||||||||
| St. Charles , MO | ||||||||||||||||||
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| Through Sunrise |
Mostly clear. Temperature falling to the lower 40s. Light wind. |
| Today |
Partly sunny in the morning, then mostly cloudy with showers likely and slight chance of thunderstorms in the afternoon. High in the mid 60s. West wind around 10 mph. Chance of rain 60 percent. |
| Tonight |
Mostly clear. A 20 percent chance of showers in the evening. Low in the upper 30s to mid 40s. West wind around 10 mph in the evening becoming light after midnight. |
| Monday |
Sunny. High in the mid 60s to lower 70s. Southwest wind 10 to 15 mph. |
| Monday Night |
Partly cloudy. Low around 40. North wind around 10 mph. |
| Tuesday |
Cooler. Mostly cloudy. Chance of showers in the morning, then showers in the afternoon. High in the upper 40s to upper 50s. Temperature falling into the 40s in the afternoon. North wind 10 to 15 mph. Gusts up to 25 mph in the afternoon. Chance of rain 80 percent. |
| Tuesday Night |
Colder. Mostly cloudy with rain showers likely, possibly mixed with snow showers in the evening, then mostly clear after midnight. Widespread frost after midnight. Little or no snow accumulation. Low around 30. Chance of precipitation 60 percent. |
| Wednesday |
Partly cloudy. Widespread frost in the morning. High in the lower 50s. |
| Wednesday Night |
Mostly clear. Areas of frost. Low in the mid 30s. |
| Thursday |
Sunny. Areas of frost. High around 60. |
| Thursday Night |
Partly cloudy with a 20 percent chance of showers. Low in the lower 40s. |
| Friday |
Mostly cloudy with a 50 percent chance of showers. High around 60. |
| Friday Night |
Showers likely. Low in the upper 40s. Chance of rain 60 percent. |
| Saturday |
Partly sunny with a 30 percent chance of showers. High in the lower 60s. |
Forecast from NOAA-NWS for St. Charles County. (Zone forecast)