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St. Charles Weather Forecast
| OVERNIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | COLUMBUS DAY | MONDAY NIGHT | TUESDAY |
 |  |  | |  | |  | | |  | | |
| Mostly Cloudy | Mostly Sunny | Partly Cloudy | Sunny | Windy | Windy | Mostly Clear | Mostly Sunny | Mostly Cloudy | Mostly Cloudy | Mostly Cloudy | Partly Sunny |
| Lo: 51°FLo: 11°C | Hi: 75°FHi: 24°C | Lo: 55°FLo: 13°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C | Lo: 59°FLo: 15°C | Hi: 69°FHi: 21°C | Lo: 49°FLo: 9°C | Hi: 55°FHi: 13°C | Lo: 41°FLo: 5°C | Hi: 59°FHi: 15°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1039 PM CDT Wed Oct 07 2026 
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Issued: 1104 PM CDT Wed Oct 7 2026
Key Messages
- Warm and predominantly dry conditions continue into the weekend. However, chances for rain (20-50%) are possible from later Thursday into early Friday mainly south of I-90.
- Warm, dry, and breezy conditions look to lead to elevated fire danger concerns on Saturday.
- More rain chances (20-50%) and cooler temperatures look to return early next week, but confidence in details remains low.
Discussion
... Issued at 153 PM CDT Wed Oct 7 2026
Quiet conditions persist across the area early this a...