| National Weather Service Forecast for:
St. Charles County Issued by: NWS National Weather Service Saint Louis, MO |
||||||||||||||||||
| Updated: 1044 AM CST Mon Dec 29 2025 | ||||||||||||||||||
| St. Charles , MO | ||||||||||||||||||
|
| This Afternoon |
Partly sunny and brisk. Much cooler with highs in the upper 20s. Northwest winds 15 to 25 mph with gusts up to 35 mph. Wind chill values as low as 2 above. |
| Tonight |
Partly cloudy in the evening, then clearing. Lows around 17. Northwest winds 10 to 15 mph with gusts up to 25 mph. |
| Tuesday |
Mostly sunny. Highs in the mid 30s. West winds 5 to 10 mph. |
| Tuesday Night |
Mostly clear. Not as cool with lows in the upper 20s. West winds 5 to 10 mph. |
| Wednesday |
Partly sunny. Highs in the lower 40s. West winds 5 to 10 mph. |
| Thursday Night |
Mostly cloudy. Lows in the mid 20s. |
| Friday |
Mostly cloudy. Highs in the upper 30s. |
| Friday Night |
Mostly cloudy. Lows in the mid 20s. |
| Saturday |
Sunny. Highs around 40. |
| Saturday Night |
Partly cloudy. Lows in the lower 20s. |
| Sunday |
Partly cloudy. Highs in the mid 40s. |
| Zone Forecast |
St. Charles County |
Forecast from NOAA-NWS for St. Charles County. (Zone forecast)