Weather forecast for 10 daysSaint Charles, IA
Weather forecast for the weekend
Sunday Oct 18, 2026
- 66°F
- 41°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 17mphSSW 194°
- Humidity: 51%
- UV index: 4
- Sunrise: 7:30 am CDT
- Sunset: 6:30 pm CDT
- details ▼
Tomorrow, in Saint Charles, sun-filled conditions are also expected to persist.
Temperatures will oscillate between an enjoyable 66.2°F at their highest and a cold 41°F at their lowest.
The predicted high for tomorrow is predicted to be slightly warmer than the typical October maximum of 60.8°F.
Sunrise will be at 7:30 am and sunset at 6:30 pm; tomorrow's daylight will last for 10h and 59min.
Temperatures will oscillate between an enjoyable 66.2°F at their highest and a cold 41°F at their lowest.
The predicted high for tomorrow is predicted to be slightly warmer than the typical October maximum of 60.8°F.
Sunrise will be at 7:30 am and sunset at 6:30 pm; tomorrow's daylight will last for 10h and 59min.
10-day overview
Daily temperatures
Warmest day: Friday 79°C.
Coldest day: tomorrow 66°C.
Coldest day: tomorrow 66°C.
Chance of precipitation
Highest chance: Wednesday 15%.
Long-term weather forecast
- Saturday
- Oct 17, 2026
- min.
- 41°F
Clear
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 12mphSSW 196°
- Humidity: 72%
- UV index: 0
- Sunrise: 7:29 am CDT
- Sunset: 6:31 pm CDT
- details ▼
- Sunday
- Oct 18, 2026
- 66°F
- 41°F
Sunny
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 17mphSSW 194°
- Humidity: 51%
- UV index: 4
- Sunrise: 7:30 am CDT
- Sunset: 6:30 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 68°F
- 43°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 10mphS 182°
- Humidity: 57%
- UV index: 4
- Sunrise: 7:31 am CDT
- Sunset: 6:28 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 72°F
- 50°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 10mphSSE 162°
- Humidity: 56%
- UV index: 4
- Sunrise: 7:32 am CDT
- Sunset: 6:27 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 75°F
- 50°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 9mphS 188°
- Humidity: 57%
- UV index: 4
- Sunrise: 7:34 am CDT
- Sunset: 6:25 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 52°F
Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 7mphSSE 165°
- Humidity: 58%
- UV index: 4
- Sunrise: 7:35 am CDT
- Sunset: 6:24 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 79°F
- 57°F
Partly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 14mphSSE 158°
- Humidity: 52%
- UV index: 4
- Sunrise: 7:36 am CDT
- Sunset: 6:22 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 77°F
- 55°F
Mostly Cloudy
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 15mphS 178°
- Humidity: 49%
- UV index: 3
- Sunrise: 7:37 am CDT
- Sunset: 6:21 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 70°F
- 52°F
Partly Cloudy
- Precip. probability: 4%
- Precipitation: 0"
- Wind: 9mphSW 216°
- Humidity: 57%
- UV index: 3
- Sunrise: 7:38 am CDT
- Sunset: 6:19 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 68°F
- 52°F
Partly Cloudy
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 9mphSSE 153°
- Humidity: 61%
- UV index: 3
- Sunrise: 7:39 am CDT
- Sunset: 6:18 pm CDT
- details ▼
Looking ahead to the next ten days, a combination of cloudy and dry and sunny weather is expected.
Rainfall is not forecasted in Saint Charles in the upcoming period.
Temperature differences will be noticeable over the next several days. The temperature is expected to swing from 66.2°F up to 78.8°F, while the lowest night temperatures will vary also significantly, as nighttime lows are forecast to fall between 41°F and 57.2°F.
Friday will be the warmest day, with a maximum temperature of 78.8°F; expect the coldest day on Sunday with a high of 66.2°F.
Rainfall is not forecasted in Saint Charles in the upcoming period.
Temperature differences will be noticeable over the next several days. The temperature is expected to swing from 66.2°F up to 78.8°F, while the lowest night temperatures will vary also significantly, as nighttime lows are forecast to fall between 41°F and 57.2°F.
Friday will be the warmest day, with a maximum temperature of 78.8°F; expect the coldest day on Sunday with a high of 66.2°F.
Updated: Oct 18, 2026 @ 03:19:32 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Tomorrow, sunny skies are in store, with excellent visibility.
Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 41°F.
The highest temperature will be slightly warmer than the average maximum of 60.8°F in October. The lowest temperature will be in line with the average low of 44.2°F.
The highest temperature will be slightly warmer than the average maximum of 60.8°F in October. The lowest temperature will be in line with the average low of 44.2°F.
On Sunday, in Saint Charles, sunrise will be at 7:30 am and sunset at 6:30 pm (CDT).
In Saint Charles, the length of the day tomorrow will be 10h and 59min.
