Weather forecast for 10 daysNew Underwood, SD

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 68°F
  • 36°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphNNE 17°
  • Humidity: 27%
  • UV index: 3
  • Sunrise: 7:10 am MDT
  • Sunset: 6:02 pm MDT
  • ▼
On Sunday, October 18, mostly sunny and dry conditions will continue.
Temperatures are forecasted to move from a peak of a delightful 68°F to a low of a wintry 35.6°F.
Today, expect a warmer trend, with a high of 68°F more common in September.
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 day: Tuesday 79°C.
Coldest day: Saturday 55°C.

Chance of precipitation

Highest chance: Tuesday 27.10. 24%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 68°F
  • 36°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 17mphNNE 17°
  • Humidity: 27%
  • UV index: 3
  • Sunrise: 7:10 am MDT
  • Sunset: 6:02 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 66°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphSE 145°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:11 am MDT
  • Sunset: 6:01 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 79°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 13mphS 173°
  • Humidity: 45%
  • UV index: 3
  • Sunrise: 7:12 am MDT
  • Sunset: 5:59 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphNNE 18°
  • Humidity: 51%
  • UV index: 3
  • Sunrise: 7:14 am MDT
  • Sunset: 5:57 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 77°F
  • 57°F
Partly Cloudy
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
  • ▼
  • Friday
  • Oct 23, 2026
  • 77°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 17%
  • Precipitation: 0"
  • Wind: 16mphSSW 213°
  • Humidity: 48%
  • UV index: 3
  • Sunrise: 7:16 am MDT
  • Sunset: 5:54 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 55°F
  • 37°F
Mostly Sunny
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
  • ▼
  • Sunday
  • Oct 25, 2026
  • 63°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 14mphSSE 157°
  • Humidity: 51%
  • UV index: 3
  • Sunrise: 7:19 am MDT
  • Sunset: 5:51 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 63°F
  • 41°F
Partly Cloudy
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
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 57°F
  • 41°F
Partly Cloudy
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
  • ▼
For the next ten days, a combination of dry and sunny and cloud-filled weather is forecasted.
Rain is not expected in New Underwood in the upcoming days.
Temperature differences will be noticeable in the upcoming days. Maximum temperatures are forecasted between 55.4°F and 78.8°F, while the fluctuation in night temperatures will be also significant, as nighttime lows are forecast to fall between 35.6°F and 57.2°F.
Expect the warmest day on Tuesday, with temperatures peaking at 78.8°F; with the highest temperature of 55.4°F, Saturday will be the coldest day.
Updated: Oct 18, 2026 @ 16:50:11 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, mainly sunny skies with just a few high clouds are anticipated.

Today, the maximum temperature will be 68°F, while the minimum temperature will be 35.6°F.
Today, the highest temperature will be uncommonly higher than the average maximum of 56.5°F in October. Today, the lowest temperature will be a couple of degrees 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, today, there will be 10h and 52min of daylight.