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, on Sunday, clear skies and sunshine are also anticipated.
Forecasted temperatures will peak at a comfortable 66.2°F and dip to a minimum of a cold 41°F.
Tomorrow, the expected high will be slightly warmer than the average 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.
Forecasted temperatures will peak at a comfortable 66.2°F and dip to a minimum of a cold 41°F.
Tomorrow, the expected high will be slightly warmer than the average 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 194°
- Humidity: 69%
- 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: 55%
- 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: 56%
- 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
Mostly Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 14mphSSE 158°
- Humidity: 54%
- 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: 16mphS 177°
- 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: 3%
- Precipitation: 0"
- Wind: 10mphSW 218°
- 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: 14%
- Precipitation: 0"
- Wind: 9mphSSE 149°
- Humidity: 62%
- UV index: 3
- Sunrise: 7:39 am CDT
- Sunset: 6:18 pm CDT
- details ▼
Forecasts for the ten-day outlook show that a combination of bright and cloud-filled weather is expected.
Rainfall is not predicted in Saint Charles in the upcoming period.
Expect a substantial fluctuation in daytime highs in the coming days. Forecast highs will fluctuate between 66.2°F and 78.8°F, while the fluctuation in night temperatures will be also significant, as nighttime lows are forecast to fall between 41°F and 57.2°F.
With the highest temperature of 78.8°F, Friday will be the warmest day; with the highest temperature of 66.2°F, Sunday will be the coldest day.
Rainfall is not predicted in Saint Charles in the upcoming period.
Expect a substantial fluctuation in daytime highs in the coming days. Forecast highs will fluctuate between 66.2°F and 78.8°F, while the fluctuation in night temperatures will be also significant, as nighttime lows are forecast to fall between 41°F and 57.2°F.
With the highest temperature of 78.8°F, Friday will be the warmest day; with the highest temperature of 66.2°F, Sunday will be the coldest day.
Updated: Oct 18, 2026 @ 01:45:18 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, sun-filled conditions are expected to persist.
Tomorrow, the highest temperature in Saint Charles will be 66.2°F, while the lowest temperature will be 41°F.
Tomorrow, the maximum temperature will be moderately higher than the average highest temperature in October. The lowest temperature will be in line with the average low of 44.2°F.
Tomorrow, the maximum temperature will be moderately higher than the average highest temperature 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, tomorrow, there will be 10h and 59min of daylight.
