Weather forecast for 10 daysSaint Charles, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 70°F
- 37°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphSSW 203°
- Humidity: 42%
- UV index: 4
- Sunrise: 7:53 am CDT
- Sunset: 6:48 pm CDT
- details ▼
Today, in Saint Charles, bright and sunny weather is expected.
The temperature will peak at a pleasant 69.8°F during the day, dropping to a low of an icy 37.4°F at night.
The temperature of 69.8°F aligns more with what is typical in September than what is normal in October.
Sunrise will be at 7:53 am and sunset at 6:48 pm; the daylight will last for 10h and 55min.
The temperature will peak at a pleasant 69.8°F during the day, dropping to a low of an icy 37.4°F at night.
The temperature of 69.8°F aligns more with what is typical in September than what is normal in October.
Sunrise will be at 7:53 am and sunset at 6:48 pm; the daylight will last for 10h and 55min.
10-day overview
Daily temperatures
Warmest period: Thursday - Friday 77°C.
Coldest day: Sunday 25.10. 59°C.
Coldest day: Sunday 25.10. 59°C.
Chance of precipitation
Highest chance: Monday 26.10. 24%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 70°F
- 37°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 11mphSSW 203°
- Humidity: 42%
- UV index: 4
- Sunrise: 7:53 am CDT
- Sunset: 6:48 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 64°F
- 41°F
Partly Cloudy
- Precip. probability: 8%
- Precipitation: 0"
- Wind: 8mphENE 77°
- Humidity: 65%
- UV index: 4
- Sunrise: 7:55 am CDT
- Sunset: 6:47 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 70°F
- 46°F
Sunny
- Precip. probability: 11%
- Precipitation: 0"
- Wind: 14mphS 172°
- Humidity: 65%
- UV index: 3
- Sunrise: 7:56 am CDT
- Sunset: 6:45 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 73°F
- 45°F
Mostly Sunny
- Precip. probability: 15%
- Precipitation: 0"
- Wind: 6mphNW 308°
- Humidity: 66%
- UV index: 3
- Sunrise: 7:57 am CDT
- Sunset: 6:44 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 57°F
Partly Cloudy
- Precip. probability: 9%
- Precipitation: 0"
- Wind: 12mphSSE 162°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:58 am CDT
- Sunset: 6:42 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 55°F
Mostly Cloudy / Wind
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 21mphSSE 167°
- Humidity: 59%
- UV index: 3
- Sunrise: 8:00 am CDT
- Sunset: 6:41 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 64°F
- 43°F
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0"
- Wind: 14mphWNW 289°
- Humidity: 59%
- UV index: 3
- Sunrise: 8:01 am CDT
- Sunset: 6:39 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 59°F
- 45°F
Mostly Sunny
- Precip. probability: 12%
- Precipitation: 0"
- Wind: 9mphE 86°
- Humidity: 68%
- UV index: 3
- Sunrise: 8:02 am CDT
- Sunset: 6:38 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 64°F
- 48°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 13mphSSE 156°
- Humidity: 71%
- UV index: 2
- Sunrise: 8:03 am CDT
- Sunset: 6:36 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 64°F
- 45°F
Partly Cloudy
- Precip. probability: 20%
- Precipitation: 0"
- Wind: 14mphSSE 164°
- Humidity: 65%
- UV index: 3
- Sunrise: 8:05 am CDT
- Sunset: 6:35 pm CDT
- details ▼
For the coming ten days, a combination of overcast and sunny weather is forecasted.
Rainfall is not anticipated in Saint Charles in the upcoming period.
Significant changes in temperature are expected in the next ten days. Highs will range from 59°F to 77°F, while the difference in minimum temperatures will be also substantial, as temperatures overnight will fluctuate from 37.4°F up to 57.2°F.
The warmest days will be Thursday and Friday, with a maximum of 77°F; with the highest temperature of 59°F, next Sunday will be the coldest day.
Rainfall is not anticipated in Saint Charles in the upcoming period.
Significant changes in temperature are expected in the next ten days. Highs will range from 59°F to 77°F, while the difference in minimum temperatures will be also substantial, as temperatures overnight will fluctuate from 37.4°F up to 57.2°F.
The warmest days will be Thursday and Friday, with a maximum of 77°F; with the highest temperature of 59°F, next Sunday will be the coldest day.
Updated: Oct 18, 2026 @ 12:16:33 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
On Sunday, uninterrupted sunshine is anticipated.
Today, the maximum temperature will be 69.8°F, while the minimum temperature will be 37.4°F.
The maximum temperature today will be noticeably higher than the average highest temperature of 58.8°F in October. Today, the lowest temperature will be moderately lower than the average low temperature.
The maximum temperature today will be noticeably higher than the average highest temperature of 58.8°F in October. Today, the lowest temperature will be moderately lower than the average low temperature.
On Sunday, in Saint Charles, sunrise will be at 7:53 am and sunset at 6:48 pm (CDT).
In Saint Charles, South Dakota, the length of the day today will be 10h and 55min.
