Weather forecast for 10 daysAmherst, SD

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 70°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 12mphWNW 299°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:52 am CDT
  • Sunset: 6:40 pm CDT
  • ▼
Today, on Sunday, October 18, expect bright skies and plenty of sunshine.
A substantial temperature fluctuation from a pleasant 69.8°F at its peak to an icy 37.4°F at its lowest point is forecasted.
Today, weather will feel warmer as the high trends toward September's average of 72.7°F.
Sunrise will be at 7:52 am and sunset at 6:40 pm; the daylight will last for 10h and 48min.

10-day overview

Daily temperatures

Warmest period: Thursday - Friday 75°C.
Minimum temperature: 59°C.

Chance of precipitation

Highest chance: 24%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 70°F
  • 37°F
Sunny
Sunny
  • Precip. probability: 2%
  • Precipitation: 0"
  • Wind: 12mphWNW 299°
  • Humidity: 52%
  • UV index: 3
  • Sunrise: 7:52 am CDT
  • Sunset: 6:40 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 66°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 12mphENE 77°
  • Humidity: 50%
  • UV index: 3
  • Sunrise: 7:54 am CDT
  • Sunset: 6:39 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 72°F
  • 45°F
Sunny
Sunny
  • Precip. probability: 7%
  • Precipitation: 0"
  • Wind: 16mphS 176°
  • Humidity: 62%
  • UV index: 3
  • Sunrise: 7:55 am CDT
  • Sunset: 6:37 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 41°F
Sunny
Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 9mphNNE 30°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 7:56 am CDT
  • Sunset: 6:35 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 59°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 12mphSSE 157°
  • Humidity: 65%
  • UV index: 3
  • Sunrise: 7:58 am CDT
  • Sunset: 6:34 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 75°F
  • 59°F
Mostly Cloudy / Wind
Mostly Cloudy / Wind
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 22mphSSE 167°
  • Humidity: 54%
  • UV index: 2
  • Sunrise: 7:59 am CDT
  • Sunset: 6:32 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 63°F
  • 39°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 21%
  • Precipitation: 0"
  • Wind: 16mphW 259°
  • Humidity: 60%
  • UV index: 2
  • Sunrise: 8:00 am CDT
  • Sunset: 6:30 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 59°F
  • 41°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 10mphWNW 301°
  • Humidity: 56%
  • UV index: 3
  • Sunrise: 8:02 am CDT
  • Sunset: 6:29 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 61°F
  • 48°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 19%
  • Precipitation: 0"
  • Wind: 13mphESE 120°
  • Humidity: 71%
  • UV index: 3
  • Sunrise: 8:03 am CDT
  • Sunset: 6:27 pm CDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 59°F
  • 43°F
Partly Cloudy
Partly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 15mphSSE 154°
  • Humidity: 68%
  • UV index: 2
  • Sunrise: 8:05 am CDT
  • Sunset: 6:25 pm CDT
  • ▼
Conditions over the next ten days suggest that a combination of clear and cloud-filled weather is forecasted.
Rainfall is not anticipated in Amherst in the upcoming days.
Temperature variation will be noticeable in the next ten days. Forecast highs will fluctuate between 59°F and 75.2°F, while the difference in minimum temperatures will be also substantial, as the minimum temperature is expected to range between 37.4°F and 59°F.
Thursday and Friday, with the highest temperature of 75.2°F, will be the warmest days; next Sunday and Tuesday, with the highest temperature of 59°F, will be the coldest days.
Updated: Oct 18, 2026 @ 09:33:41 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, conditions will remain bright with clear skies.

Today, the maximum temperature will be 69.8°F, while the minimum temperature will be 37.4°F.
The highest temperature will be uncommonly higher than the average maximum of 54.7°F in October. The lowest temperature today will be in line with the average low temperature.

On Sunday, in Amherst, sunrise will be at 7:52 am and sunset at 6:40 pm (CDT).

Today, the daylight will last for 10h and 48min.