| National Weather Service Forecast for:
St. Charles County Issued by: NWS National Weather Service Saint Louis, MO |
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| Updated: 1229 PM CST Sun Nov 1 2026 | ||||||||||||||||||
| St. Charles , MO | ||||||||||||||||||
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| This Afternoon |
Cloudy with a 20 percent chance of rain. Near steady temperature around 60. Southeast winds 5 to 10 mph with gusts up to 20 mph. |
| Tonight |
Cloudy. Patchy fog. Near steady temperature in the upper 50s. Southeast winds 5 to 10 mph. |
| Monday |
Cloudy. Highs in the upper 60s. Southeast winds 10 to 15 mph with gusts up to 25 mph. |
| Monday Night |
Mostly cloudy. A chance of rain after midnight. Near steady temperature in the mid 60s. South winds 15 to 20 mph with gusts up to 30 mph. Chance of rain 50 percent. |
| Tuesday |
A slight chance of thunderstorms. Rain, breezy with highs in the lower 70s. Temperature falling into the upper 60s in the afternoon. South winds 15 to 25 mph. Chance of rain near 100 percent. |
| Tuesday Night |
Mostly cloudy. Rain with a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Lows in the lower 50s. Chance of rain 90 percent. |
| Wednesday |
Mostly sunny. A slight chance of rain in the morning. Highs in the upper 60s. Chance of rain 20 percent. |
| Wednesday Night |
Partly cloudy. Lows in the mid 40s. |
| Thursday |
Partly cloudy. Highs in the mid 60s. |
| Thursday Night |
Mostly cloudy. Lows in the mid 40s. Highs in the lower 60s.. |
| Friday |
Mostly cloudy. Lows in the mid 40s. Highs in the lower 60s.. |
| Friday Night |
Partly cloudy. Lows in the lower 40s. Highs in the lower 60s.. |
| Saturday |
Partly cloudy. Lows in the lower 40s. Highs in the lower 60s.. |
| Zone Forecast |
St. Charles County |
Forecast from NOAA-NWS for St. Charles County. (Zone forecast)