Weather forecast for 10 daysNew Underwood, SD
Weather forecast for the weekend
Sunday Oct 18, 2026
- 70°F
- 36°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 17mphNNE 15°
- Humidity: 28%
- UV index: 3
- Sunrise: 7:10 am MDT
- Sunset: 6:02 pm MDT
- details ▼
Today, on Sunday, October 18, sun-filled skies will remain for most of the day.
Considerable temperature fluctuations from a high of an agreeable 69.8°F to a low of a wintry 35.6°F are anticipated.
Today, meteorological data suggests the high will feel more like September, based on a forecast of 69.8°F.
Sunrise was at 7:10 am and sunset will be at 6:02 pm; the daylight will last for 10h and 52min.
Considerable temperature fluctuations from a high of an agreeable 69.8°F to a low of a wintry 35.6°F are anticipated.
Today, meteorological data suggests the high will feel more like September, based on a forecast of 69.8°F.
Sunrise was at 7:10 am and sunset will be at 6:02 pm; the daylight will last for 10h and 52min.
10-day overview
Daily temperatures
Warmest period: Thursday - Friday 77°C.
Coldest day: Saturday 55°C.
Coldest day: Saturday 55°C.
Chance of precipitation
Highest chance: Tuesday 27.10. 24%.
Long-term weather forecast
- Sunday
- Oct 18, 2026
- 70°F
- 36°F
Mostly Sunny
- Precip. probability: 0%
- Precipitation: 0"
- Wind: 17mphNNE 15°
- Humidity: 28%
- UV index: 3
- Sunrise: 7:10 am MDT
- Sunset: 6:02 pm MDT
- details ▼
- Monday
- Oct 19, 2026
- 66°F
- 43°F
Sunny
- Precip. probability: 1%
- Precipitation: 0"
- Wind: 12mphSE 137°
- Humidity: 43%
- UV index: 3
- Sunrise: 7:11 am MDT
- Sunset: 6:01 pm MDT
- details ▼
- Tuesday
- Oct 20, 2026
- 75°F
- 46°F
Sunny
- Precip. probability: 5%
- Precipitation: 0"
- Wind: 14mphS 172°
- Humidity: 45%
- UV index: 3
- Sunrise: 7:12 am MDT
- Sunset: 5:59 pm MDT
- details ▼
- Wednesday
- Oct 21, 2026
- 70°F
- 46°F
Sunny
- Precip. probability: 3%
- Precipitation: 0"
- Wind: 11mphNNE 16°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:14 am MDT
- Sunset: 5:57 pm MDT
- details ▼
- Thursday
- Oct 22, 2026
- 77°F
- 57°F
Partly Cloudy
- Precip. probability: 18%
- Precipitation: 0"
- Wind: 16mphSSE 167°
- Humidity: 52%
- UV index: 3
- Sunrise: 7:15 am MDT
- Sunset: 5:56 pm MDT
- details ▼
- Friday
- Oct 23, 2026
- 77°F
- 45°F
Partly Cloudy
- Precip. probability: 17%
- Precipitation: 0"
- Wind: 16mphSSW 213°
- Humidity: 49%
- UV index: 3
- Sunrise: 7:16 am MDT
- Sunset: 5:54 pm MDT
- details ▼
- Saturday
- Oct 24, 2026
- 55°F
- 37°F
Mostly Sunny
- Precip. probability: 6%
- Precipitation: 0"
- Wind: 18mphNNW 334°
- Humidity: 48%
- UV index: 3
- Sunrise: 7:17 am MDT
- Sunset: 5:53 pm MDT
- details ▼
- Sunday
- Oct 25, 2026
- 63°F
- 41°F
Sunny
- Precip. probability: 2%
- Precipitation: 0"
- Wind: 14mphSSE 157°
- Humidity: 51%
- UV index: 3
- Sunrise: 7:19 am MDT
- Sunset: 5:51 pm MDT
- details ▼
- Monday
- Oct 26, 2026
- 63°F
- 41°F
Partly Cloudy
- Precip. probability: 7%
- Precipitation: 0"
- Wind: 12mphSE 146°
- Humidity: 57%
- UV index: 3
- Sunrise: 7:20 am MDT
- Sunset: 5:50 pm MDT
- details ▼
- Tuesday
- Oct 27, 2026
- 57°F
- 41°F
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0"
- Wind: 12mphSSE 147°
- Humidity: 61%
- UV index: 3
- Sunrise: 7:21 am MDT
- Sunset: 5:48 pm MDT
- details ▼
Throughout the next ten days, a combination of bright and gloomy weather is forecasted.
Rainfall is not predicted in New Underwood in the upcoming period.
Noticeable swings in temperature are expected across the forecast period. Maximum temperatures are forecasted between 55.4°F and 77°F, while the nightly low temperatures will show also a considerable swing, as the minimum temperature is expected to range between 35.6°F and 57.2°F.
Thursday and Friday, with the highest temperature of 77°F, will be the warmest days in New Underwood; the coldest day will be Saturday, with a maximum of 55.4°F.
Rainfall is not predicted in New Underwood in the upcoming period.
Noticeable swings in temperature are expected across the forecast period. Maximum temperatures are forecasted between 55.4°F and 77°F, while the nightly low temperatures will show also a considerable swing, as the minimum temperature is expected to range between 35.6°F and 57.2°F.
Thursday and Friday, with the highest temperature of 77°F, will be the warmest days in New Underwood; the coldest day will be Saturday, with a maximum of 55.4°F.
Updated: Oct 18, 2026 @ 15:03:38 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, in New Underwood, a crisp, sunny atmosphere is likely.
Today, the highest temperature will be 69.8°F, while the lowest temperature will be 35.6°F.
The maximum temperature today will be significantly higher than the average highest temperature of 56.5°F in October. The lowest temperature today will be relatively lower than the average low temperature.
The maximum temperature today will be significantly higher than the average highest temperature of 56.5°F in October. The lowest temperature today will be relatively lower than the average low temperature.
On Sunday, in New Underwood, sunrise was at 7:10 am and sunset will be at 6:02 pm (MDT).
In New Underwood, the length of the day today will be 10h and 52min.
