Weather forecast for tomorrowUnion Center, SD

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 64°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 16mphSE 125°
  • Humidity: 42%
  • UV index: 3
  • Sunrise: 7:11 am MDT
  • Sunset: 5:59 pm MDT
  • ▼
On Monday, October 19, sunny skies and pleasant visibility are also expected.
Temperature span will be from a high of a comfortable 64.4°F to a low of a brisk 42.8°F.
The expected high will be a few degrees higher than October's standard temperature of 56.3°F.
Sunrise will be at 7:11 am and sunset at 5:59 pm; tomorrow's daylight will last for 10h and 49min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 63°C.
Coldest hour: 6 am 39°C.

Chance of precipitation

Highest chance: 9 pm 1%.

Hourly weather forecast

  • 12 am
  • 45°F
  • Feels like:
    39°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 9mphENE 75°
  • Humidity: 47%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 43°F
  • Feels like:
    37°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 8mphE 80°
  • Humidity: 52%
  • Pressure: 30.21"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 39°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphE 87°
  • Humidity: 57%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 39°F
  • Feels like:
    32°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphE 97°
  • Humidity: 62%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:11 am
  • 8 am
  • 41°F
  • Feels like:
    36°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 7mphESE 113°
  • Humidity: 61%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 50°F
  • Feels like:
    46°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSE 126°
  • Humidity: 45%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    55°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphSE 135°
  • Humidity: 35%
  • Pressure: 30.18"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 2 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphSE 132°
  • Humidity: 32%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 3
  • ▼
  • 4 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphSE 130°
  • Humidity: 32%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
Sunset: 5:59 pm
  • 6 pm
  • 59°F
  • Feels like:
    55°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphSE 124°
  • Humidity: 41%
  • Pressure: 30.06"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 52°F
  • Feels like:
    48°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 12mphESE 123°
  • Humidity: 55%
  • 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: 12mphSE 128°
  • Humidity: 64%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, on Monday, sunny conditions are likely to prevail.
The temperature will be between the lowest temperature of 37.4°F and the highest temperature of 62.6°F. The warmest part of the day will be from 2 pm to 4 pm.
The highest temperature will be relatively higher than October's average maximum of 56.3°F. The expected low will be also consistent with the average minimum in October, which is 40.1°F.
Updated: Oct 18, 2026 @ 14:56:05 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Monday, sun-filled conditions are expected to persist.

Tomorrow, the maximum temperature will be 64.4°F, while the minimum temperature will be 42.8°F.
The maximum temperature will be slightly warmer than the average highest temperature of 56.3°F in October. The lowest temperature will be in line with the average low of 40.1°F.

On Monday, in Union Center, sunrise will be at 7:11 am and sunset at 5:59 pm (MDT).

Tomorrow, the daylight will last for 10h and 49min.