Weather forecast for tomorrowSummerville, SD

Weather forecast for tomorrow

Monday Oct 19, 2026

  • 64°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 16mphSE 129°
  • Humidity: 44%
  • UV index: 3
  • Sunrise: 7:11 am MDT
  • Sunset: 5:56 pm MDT
  • ▼
Tomorrow, on Monday, October 19, the weather remains calm, bright, and sunny.
A notable disparity in temperature is anticipated, reaching up to a maximum of a breezy 64.4°F and falling to a minimum of a wintry 37.4°F.
Weather conditions lean warmer, with the temperature tracking September's average high of 73°F.
Sunrise will be at 7:11 am and sunset at 5:56 pm; tomorrow's daylight will last for 10h and 45min.

Hourly overview

Hourly temperatures

Warmest hour: 3 pm 64°C.
Coldest hour: 6 am 34°C.

Chance of precipitation

Highest chance: 6 am 3%.

Hourly weather forecast

  • 12 am
  • 39°F
  • Feels like:
    37°F
Mostly Clear
Mostly Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 4mphE 79°
  • Humidity: 58%
  • Pressure: 30.24"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 2 am
  • 36°F
  • Feels like:
    34°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 4mphE 93°
  • Humidity: 65%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 4 am
  • 34°F
  • Feels like:
    28°F
Clear
Clear
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 6mphE 96°
  • Humidity: 70%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 6 am
  • 34°F
  • Feels like:
    28°F
Clear
Clear
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 5mphESE 106°
  • Humidity: 74%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Sunrise: 7:11 am
  • 8 am
  • 36°F
  • Feels like:
    32°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 5mphESE 114°
  • Humidity: 76%
  • Pressure: 30.3"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 am
  • 50°F
  • Feels like:
    45°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSE 128°
  • Humidity: 50%
  • Pressure: 30.27"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
  • 12 pm
  • 59°F
  • Feels like:
    57°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 14mphSE 136°
  • Humidity: 32%
  • 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: 15mphSE 138°
  • Humidity: 29%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 2
  • ▼
  • 4 pm
  • 63°F
  • Feels like:
    61°F
Sunny
Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 16mphSE 135°
  • Humidity: 29%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 1
  • ▼
Sunset: 5:56 pm
  • 6 pm
  • 57°F
  • Feels like:
    54°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 12mphSE 128°
  • Humidity: 40%
  • Pressure: 30.09"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 8 pm
  • 50°F
  • Feels like:
    46°F
Clear
Clear
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 11mphSE 133°
  • Humidity: 57%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
  • 10 pm
  • 46°F
  • Feels like:
    43°F
Clear
Clear
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 9mphSE 134°
  • Humidity: 69%
  • Pressure: 30.12"Hg
  • Visibility: 10mi
  • UV index: 0
  • ▼
Tomorrow, primarily sunny and occasionally cloud-filled weather is forecasted.
The temperature will be between the lowest temperature of 33.8°F and the highest temperature of 64.4°F. The warmest part of the day is expected around 3 pm.
The forecasted maximum is more close to September's typical high of 73°F than the average for October. The minimum temperature will be resembling October's average low of 39.4°F.
Updated: Oct 18, 2026 @ 16:48:17 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Tomorrow, in Summerville, skies will stay clear and sunny.

Tomorrow, the highest temperature will be 64.4°F, while the lowest temperature will be 37.4°F.
The maximum temperature will be noticeably higher than the average highest temperature of 54.7°F in October. The lowest temperature will be in line with the average low of 39.4°F.

On Monday, in Summerville, sunrise will be at 7:11 am and sunset at 5:56 pm (MDT).

In Summerville, tomorrow, there will be 10h and 45min of daylight.