Weather forecast for 10 daysBuffalo, SD

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 66°F
  • 36°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphNNE 27°
  • Humidity: 34%
  • UV index: 3
  • Sunrise: 7:15 am MDT
  • Sunset: 6:03 pm MDT
  • ▼
On Sunday, October 18, clear skies with only minor cloud interruptions are in the outlook.
Dramatic changes in temperature are expected, reaching a high of an enjoyable 66.2°F and falling to a low of a wintry 35.6°F.
Today, the temperature forecast of 66.2°F will better match September's climate average than that of October.
Sunrise will be at 7:15 am and sunset at 6:03 pm; the daylight will last for 10h and 49min.

10-day overview

Daily temperatures

Warmest day: Thursday 75°C.
Coldest day: Saturday 52°C.

Chance of precipitation

Highest chance: Saturday 22%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 66°F
  • 36°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 0%
  • Precipitation: 0"
  • Wind: 13mphNNE 27°
  • Humidity: 34%
  • UV index: 3
  • Sunrise: 7:15 am MDT
  • Sunset: 6:03 pm MDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 64°F
  • 39°F
Sunny / Wind
Sunny / Wind
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 22mphSE 139°
  • Humidity: 41%
  • UV index: 3
  • Sunrise: 7:16 am MDT
  • Sunset: 6:01 pm MDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 73°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 9mphSW 223°
  • Humidity: 51%
  • UV index: 3
  • Sunrise: 7:17 am MDT
  • Sunset: 6:00 pm MDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 68°F
  • 46°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 13mphE 81°
  • Humidity: 58%
  • UV index: 3
  • Sunrise: 7:19 am MDT
  • Sunset: 5:58 pm MDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 54°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 6%
  • Precipitation: 0"
  • Wind: 15mphSSE 162°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:20 am MDT
  • Sunset: 5:56 pm MDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 73°F
  • 41°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 19mphSSW 211°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:21 am MDT
  • Sunset: 5:55 pm MDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 52°F
  • 34°F
Partly Cloudy / Wind
Partly Cloudy / Wind
  • Precip. probability: 22%
  • Precipitation: 0"
  • Wind: 21mphWNW 296°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:23 am MDT
  • Sunset: 5:53 pm MDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 57°F
  • 37°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 16mphSE 128°
  • Humidity: 54%
  • UV index: 3
  • Sunrise: 7:24 am MDT
  • Sunset: 5:51 pm MDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 59°F
  • 37°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 5%
  • Precipitation: 0"
  • Wind: 16mphSE 127°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:25 am MDT
  • Sunset: 5:50 pm MDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 54°F
  • 36°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 18%
  • Precipitation: 0"
  • Wind: 16mphSE 136°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 7:27 am MDT
  • Sunset: 5:48 pm MDT
  • ▼
Across the following ten days, a combination of mostly clear and dull weather is predicted.
Rainfall is not forecasted in Buffalo in the upcoming days.
There will be a considerable variation in temperature in the coming days. Maximum temperatures are forecasted between 51.8°F and 75.2°F, while the variation in nighttime lows will be also notably wide, as temperatures overnight will fluctuate from 33.8°F up to 53.6°F.
The warmest day will be Thursday, with a maximum of 75.2°F; with the highest temperature of 51.8°F, Saturday will be the coldest day.
Updated: Oct 18, 2026 @ 09:07:20 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, open skies and radiant sunshine are expected.

Today, the highest temperature will be 66.2°F, while the lowest temperature will be 35.6°F.
The highest temperature today will be significantly higher than the average maximum of 55.4°F in October. The lowest temperature today will be slightly cooler than the average low temperature.

On Sunday, in Buffalo, sunrise will be at 7:15 am and sunset at 6:03 pm (MDT).

In Buffalo, today, there will be 10h and 49min of daylight.