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 145°
  • Humidity: 43%
  • UV index: 3
  • Sunrise: 7:11 am MDT
  • Sunset: 6:01 pm MDT
  • ▼
Tomorrow, sunshine and minimal clouds are in the outlook.
The temperature variation is predicted to range from a maximum of an enjoyable 66.2°F to a minimum of a frosty 42.8°F.
The day's peak of 66.2°F reflects September's seasonal pattern more than October's.
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 period: 3 am - 6 am 37°C.

Chance of precipitation

Highest chance: 9 pm 2%.

Hourly weather forecast

  • 12 am
  • 43°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNNE 28°
  • Humidity: 55%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 39°F
  • Feels like:
    37°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphNE 35°
  • Humidity: 61%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 37°F
  • Feels like:
    37°F
Mostly Clear
Mostly Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 3mphSE 132°
  • 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: 4mphSE 134°
  • Humidity: 67%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:11 am
  • 8 am
  • 39°F
  • Feels like:
    37°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphSSE 155°
  • Humidity: 64%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 52°F
  • Feels like:
    48°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphSSE 149°
  • Humidity: 45%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSSE 153°
  • Humidity: 35%
  • Pressure: 30.15"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    63°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSE 144°
  • 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: 32%
  • 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 129°
  • 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 130°
  • Humidity: 57%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 48°F
  • Feels like:
    45°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 7mphSSE 148°
  • Humidity: 68%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Monday, a combination of bright and gloomy weather is predicted.
The temperature will be between a minimum of 37.4°F and a maximum of 64.4°F. The warmest part of the day will be at 3 pm and 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 night temperature will be consistent with the standard October low of 39.9°F.
Updated: Oct 18, 2026 @ 18:47:26 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in New Underwood, sun-filled conditions are expected to persist.

Tomorrow, the highest temperature will be 66.2°F, while the lowest temperature will be 42.8°F.
The highest temperature will be noticeably higher than the average maximum 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).

In New Underwood, the length of the day tomorrow will be 10h and 50min.