Weather forecast for 10 daysGrenville, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 68°F
- 39°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphNNE 12°
- Humidity: 31%
- UV index: 3
- Sunrise: 7:50 am CDT
- Sunset: 6:39 pm CDT
- details ▼
Today, sunny and dry conditions are anticipated.
Day and night temperatures will contrast sharply, from a maximum of an agreeable 68°F to a minimum of a wintry 39.2°F.
Weather conditions lean warmer, with the temperature tracking September's average high of 71.6°F.
Sunrise was at 7:50 am and sunset will be at 6:39 pm; the daylight will last for 10h and 49min.
Day and night temperatures will contrast sharply, from a maximum of an agreeable 68°F to a minimum of a wintry 39.2°F.
Weather conditions lean warmer, with the temperature tracking September's average high of 71.6°F.
Sunrise was at 7:50 am and sunset will be at 6:39 pm; the daylight will last for 10h and 49min.
10-day overview
Daily temperatures
Warmest day: Thursday 73°C.
Coldest day: Sunday 25.10. 52°C.
Coldest day: Sunday 25.10. 52°C.
Chance of precipitation
Highest chance: 24%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 68°F
- 39°F
Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 12mphNNE 12°
- Humidity: 31%
- UV index: 3
- Sunrise: 7:50 am CDT
- Sunset: 6:39 pm CDT
- details ▼
- Monday
- Oct 19, 2026
- 63°F
- 43°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphE 87°
- Humidity: 53%
- UV index: 3
- Sunrise: 7:51 am CDT
- Sunset: 6:37 pm CDT
- details ▼
- Tuesday
- Oct 20, 2026
- 68°F
- 46°F
Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 16mphS 174°
- Humidity: 65%
- UV index: 3
- Sunrise: 7:52 am CDT
- Sunset: 6:35 pm CDT
- details ▼
- Wednesday
- Oct 21, 2026
- 68°F
- 46°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 9mphNE 51°
- Humidity: 68%
- UV index: 3
- Sunrise: 7:54 am CDT
- Sunset: 6:34 pm CDT
- details ▼
- Thursday
- Oct 22, 2026
- 73°F
- 57°F
Mostly Sunny
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 13mphSSE 148°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:55 am CDT
- Sunset: 6:32 pm CDT
- details ▼
- Friday
- Oct 23, 2026
- 72°F
- 54°F
Cloudy / Wind
- Precip. probability: 24%
- Precipitation: 0.04"
- Wind: 24mphSSE 164°
- Humidity: 57%
- UV index: 2
- Sunrise: 7:56 am CDT
- Sunset: 6:30 pm CDT
- details ▼
- Saturday
- Oct 24, 2026
- 57°F
- 39°F
Partly Cloudy
- Precip. probability: 19%
- Precipitation: 0"
- Wind: 16mphW 272°
- Humidity: 67%
- UV index: 3
- Sunrise: 7:58 am CDT
- Sunset: 6:29 pm CDT
- details ▼
- Sunday
- Oct 25, 2026
- 52°F
- 41°F
Partly Cloudy
- Precip. probability: 15%
- Precipitation: 0.04"
- Wind: 10mphNNE 32°
- Humidity: 65%
- UV index: 3
- Sunrise: 7:59 am CDT
- Sunset: 6:27 pm CDT
- details ▼
- Monday
- Oct 26, 2026
- 54°F
- 45°F
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0.12"
- Wind: 14mphSE 133°
- Humidity: 77%
- UV index: 2
- Sunrise: 8:01 am CDT
- Sunset: 6:25 pm CDT
- details ▼
- Tuesday
- Oct 27, 2026
- 55°F
- 43°F
Mostly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 14mphSE 140°
- Humidity: 76%
- UV index: 2
- Sunrise: 8:02 am CDT
- Sunset: 6:24 pm CDT
- details ▼
It is expected that a combination of clear and gloomy weather is predicted.
Rainfall is forecasted for Friday, next Sunday and Monday.
There will be a considerable variation in temperature over the next several days. Forecast highs will fluctuate between 51.8°F and 73.4°F, while the variation in nighttime lows will be also notably wide, as nighttime lows are forecast to fall between 39.2°F and 57.2°F.
Expect the warmest day on Thursday, with temperatures peaking at 73.4°F; the lowest daytime temperature of the period will be reached on next Sunday, peaking at 51.8°F.
Rainfall is forecasted for Friday, next Sunday and Monday.
There will be a considerable variation in temperature over the next several days. Forecast highs will fluctuate between 51.8°F and 73.4°F, while the variation in nighttime lows will be also notably wide, as nighttime lows are forecast to fall between 39.2°F and 57.2°F.
Expect the warmest day on Thursday, with temperatures peaking at 73.4°F; the lowest daytime temperature of the period will be reached on next Sunday, peaking at 51.8°F.
Updated: Oct 18, 2026 @ 19:15:25 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, sunny skies and pleasant visibility are expected.
Today, the highest temperature will be 68°F, while the lowest temperature will be 39.2°F.
The maximum temperature will be notably higher than the average highest temperature of 53.8°F in October. The lowest temperature today will be in line with the average low temperature.
The maximum temperature will be notably higher than the average highest temperature of 53.8°F in October. The lowest temperature today will be in line with the average low temperature.
On Sunday, in Grenville, sunrise was at 7:50 am and sunset will be at 6:39 pm (CDT).
Today, the daylight will last for 10h and 49min.
