Weather forecast for tomorrowNew Underwood, SD

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 66°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphSE 137°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:11 am MDT
  • Sunset: 6:01 pm MDT
  • ▼
Tomorrow, on Monday, October 19, clear and sunny conditions are also expected.
Temperature fluctuations between a comfortable 66.2°F and a chilly 42.8°F are predicted.
A high of 66.2°F is expected, which resembles September's climate average of 73.9°F more than October's 56.5°F.
Sunrise will be at 7:11 am and sunset at 6:01 pm; tomorrow's daylight will last for 10h and 50min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 37°C.

Chance of precipitation

Highest chance: 9 pm 2%.

Hourly weather forecast

  • 12 am
  • 43°F
  • Feels like:
    41°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNNE 15°
  • Humidity: 54%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 41°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNNE 22°
  • Humidity: 60%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 37°F
  • Feels like:
    37°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphNW 321°
  • Humidity: 65%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 37°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphE 101°
  • Humidity: 68%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:11 am
  • 8 am
  • 41°F
  • Feels like:
    39°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSE 140°
  • Humidity: 64%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSE 142°
  • Humidity: 46%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSE 146°
  • Humidity: 35%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 64°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSE 141°
  • Humidity: 32%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 64°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSE 137°
  • Humidity: 33%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 6 pm
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 10mphSE 127°
  • Humidity: 43%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunset: 6:01 pm
  • 8 pm
  • 52°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphSE 132°
  • Humidity: 56%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 7mphSSE 149°
  • Humidity: 67%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Monday, primarily bright and occasionally gloomy weather is anticipated.
The temperature will vary between the lowest temperature of 37.4°F and the highest temperature of 64.4°F. The warmest part of the day will be from 2 pm to 4 pm.
The maximum temperature will align more closely with September's average high of 73.9°F than with October's 56.5°F. The lowest temperature is alike with October's typical minimum of 39.9°F.
Updated: Oct 18, 2026 @ 15:03:38 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, conditions remain stable and sunny, with little cloud presence.

Tomorrow, the maximum temperature will be 66.2°F, while the minimum temperature will be 42.8°F.
The maximum temperature will be notably higher than the average highest temperature of 56.5°F in October. The lowest temperature will be in line with the average low of 39.9°F.

On Monday, in New Underwood, sunrise will be at 7:11 am and sunset at 6:01 pm (MDT).

Tomorrow, the daylight will last for 10h and 50min.