| National Weather Service Forecast for:
St. Charles County Issued by: NWS National Weather Service Saint Louis, MO |
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| Updated: 128 AM CDT Sun Nov 1 2026 | ||||||||||||||||||
| St. Charles , MO | ||||||||||||||||||
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| Rest Of Tonight |
Cloudy with a 50 percent chance of rain. Near steady temperature around 60. Southeast winds around 5 mph. |
| Sunday |
Cloudy. Patchy fog in the morning. A chance of rain, mainly in the morning. Near steady temperature around 60. Southeast winds 5 to 10 mph. Chance of rain 50 percent. |
| Sunday Night |
Cloudy. Patchy fog after midnight. Near steady temperature in the upper 50s. Southeast winds 5 to 10 mph. |
| Monday |
Patchy fog in the morning. Cloudy. Not as cool with highs in the lower 70s. Southeast winds 15 to 20 mph. |
| Monday Night |
Cloudy. A chance of rain after midnight. Lows in the lower 60s. South winds 15 to 20 mph. Chance of rain 40 percent. |
| Tuesday |
Rain likely in the morning, then rain with a slight chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of rain 90 percent. |
| Tuesday Night |
Rain likely with a slight chance of thunderstorms in the evening, then a chance of rain after midnight. Lows in the mid 50s. Chance of rain 70 percent. |
| Wednesday |
Partly sunny. A chance of rain, mainly in the morning. Highs in the upper 60s. Chance of rain 50 percent. |
| Wednesday Night |
Partly cloudy. A slight chance of rain in the evening. Lows in the upper 40s. Chance of rain 20 percent. |
| Thursday |
Partly sunny. Highs in the upper 60s. |
| Thursday Night |
Mostly cloudy. A slight chance of rain in the evening. Lows in the upper 40s. Chance of rain 20 percent. |
| Friday |
Mostly cloudy. Highs in the mid 60s. |
| Friday Night |
Mostly cloudy. Lows in the mid 40s. |
| Saturday |
Mostly sunny. Highs in the mid 60s. |
| Zone Forecast |
St. Charles County |
Forecast from NOAA-NWS for St. Charles County. (Zone forecast)