Weather forecast for 10 daysOkaton, SD

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 70°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 16mphN 357°
  • Humidity: 47%
  • UV index: 3
  • Sunrise: 8:02 am CDT
  • Sunset: 6:55 pm CDT
  • ▼
On Sunday, October 18, clear and sunny conditions are expected.
Significant temperature fluctuations from a high of a pleasant 69.8°F to a low of a wintry 35.6°F are predicted.
A forecast high of 69.8°F brings conditions more familiar to September's average than October's.
Sunrise will be at 8:02 am and sunset at 6:55 pm; the daylight will last for 10h and 53min.

10-day overview

Daily temperatures

Warmest period: Thursday - Friday 79°C.
Minimum temperature: 61°C.

Chance of precipitation

Highest chance: Friday 35%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 70°F
  • 36°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 16mphN 357°
  • Humidity: 47%
  • UV index: 3
  • Sunrise: 8:02 am CDT
  • Sunset: 6:55 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 66°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 3%
  • Precipitation: 0"
  • Wind: 11mphE 79°
  • Humidity: 53%
  • UV index: 3
  • Sunrise: 8:03 am CDT
  • Sunset: 6:53 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 75°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 14mphSSE 164°
  • Humidity: 58%
  • UV index: 3
  • Sunrise: 8:04 am CDT
  • Sunset: 6:51 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 9mphNNW 346°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 8:05 am CDT
  • Sunset: 6:50 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 79°F
  • 59°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 16mphSSE 151°
  • Humidity: 63%
  • UV index: 3
  • Sunrise: 8:07 am CDT
  • Sunset: 6:48 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 79°F
  • 50°F
AM Showers
AM Showers
  • Precip. probability: 35%
  • Precipitation: 0.12"
  • Wind: 19mphS 172°
  • Humidity: 56%
  • UV index: 3
  • Sunrise: 8:08 am CDT
  • Sunset: 6:47 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 61°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 17mphNW 310°
  • Humidity: 56%
  • UV index: 3
  • Sunrise: 8:09 am CDT
  • Sunset: 6:45 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 61°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 12mphSE 138°
  • Humidity: 61%
  • UV index: 3
  • Sunrise: 8:11 am CDT
  • Sunset: 6:44 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 66°F
  • 45°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 10%
  • Precipitation: 0"
  • Wind: 14mphSSE 147°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 8:12 am CDT
  • Sunset: 6:42 pm CDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 61°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 14mphSSE 157°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 8:13 am CDT
  • Sunset: 6:41 pm CDT
  • ▼
bright, overcast and damp weather is predicted.
With a 35% probability, rainfall is expected only on Friday. The precipitation will be minimal at 0.12".
There will be a considerable variation in temperature in the next ten days. The temperature is expected to swing from 60.8°F up to 78.8°F, while the lowest nightly temperature differences will be also quite pronounced, as the lowest temperatures will be recorded between 35.6°F and 59°F.
Thursday and Friday, with the highest temperature of 78.8°F, will be the warmest days in Okaton, South Dakota; Saturday, next Sunday and Tuesday, with the highest temperature of 60.8°F, will be the coldest days in Okaton, South Dakota.
Updated: Oct 18, 2026 @ 11:52:56 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

On Sunday, in Okaton, expect bright skies and plenty of sunshine.

Today, the highest temperature will be 69.8°F, while the lowest temperature will be 35.6°F.
Today, the maximum temperature will be uncommonly higher than the average highest temperature of 59.2°F in October. The lowest temperature will be relatively lower than the average low of 43°F.

On Sunday, in Okaton, sunrise will be at 8:02 am and sunset at 6:55 pm (CDT).

In Okaton, South Dakota, the length of the day today will be 10h and 53min.