Weather forecast for 10 daysArlington, SD

Weather forecast for the weekend

Sunday Oct 18, 2026

  • 64°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 14mphS 186°
  • Humidity: 47%
  • UV index: 3
  • Sunrise: 7:47 am CDT
  • Sunset: 6:39 pm CDT
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Today, in Arlington, the forecast calls for abundant sunshine.
The temperature will vary between a maximum of a comfortable 64.4°F and a minimum of a wintry 39.2°F.
Temperatures are trending warmer, with a peak resembling September's average maximum rather than October's seasonal high.
Sunrise was at 7:47 am and sunset will be at 6:39 pm; the daylight will last for 10h and 52min.

10-day overview

Daily temperatures

Warmest day: Thursday 75°C.
Coldest period: Sunday - Monday 57°C.

Chance of precipitation

Highest chance: Saturday 35%.

Long-term weather forecast

  • Sunday
  • Oct 18, 2026
  • 64°F
  • 39°F
Sunny
Sunny
  • Precip. probability: 1%
  • Precipitation: 0"
  • Wind: 14mphS 186°
  • Humidity: 47%
  • UV index: 3
  • Sunrise: 7:47 am CDT
  • Sunset: 6:39 pm CDT
  • ▼
  • Monday
  • Oct 19, 2026
  • 64°F
  • 43°F
Sunny
Sunny
  • Precip. probability: 4%
  • Precipitation: 0"
  • Wind: 11mphE 98°
  • Humidity: 59%
  • UV index: 3
  • Sunrise: 7:49 am CDT
  • Sunset: 6:37 pm CDT
  • ▼
  • Tuesday
  • Oct 20, 2026
  • 68°F
  • 46°F
Sunny
Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 17mphSSE 164°
  • Humidity: 64%
  • UV index: 3
  • Sunrise: 7:50 am CDT
  • Sunset: 6:36 pm CDT
  • ▼
  • Wednesday
  • Oct 21, 2026
  • 70°F
  • 46°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 15%
  • Precipitation: 0"
  • Wind: 7mphSSE 152°
  • Humidity: 69%
  • UV index: 3
  • Sunrise: 7:51 am CDT
  • Sunset: 6:34 pm CDT
  • ▼
  • Thursday
  • Oct 22, 2026
  • 75°F
  • 57°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 8%
  • Precipitation: 0"
  • Wind: 12mphSE 143°
  • Humidity: 70%
  • UV index: 3
  • Sunrise: 7:52 am CDT
  • Sunset: 6:33 pm CDT
  • ▼
  • Friday
  • Oct 23, 2026
  • 72°F
  • 57°F
Mostly Cloudy / Wind
Mostly Cloudy / Wind
  • Precip. probability: 16%
  • Precipitation: 0.04"
  • Wind: 24mphSSE 160°
  • Humidity: 58%
  • UV index: 2
  • Sunrise: 7:54 am CDT
  • Sunset: 6:31 pm CDT
  • ▼
  • Saturday
  • Oct 24, 2026
  • 61°F
  • 41°F
AM Showers
AM Showers
  • Precip. probability: 35%
  • Precipitation: 0.04"
  • Wind: 14mphWSW 250°
  • Humidity: 70%
  • UV index: 2
  • Sunrise: 7:55 am CDT
  • Sunset: 6:29 pm CDT
  • ▼
  • Sunday
  • Oct 25, 2026
  • 57°F
  • 43°F
Mostly Sunny
Mostly Sunny
  • Precip. probability: 9%
  • Precipitation: 0"
  • Wind: 9mphE 86°
  • Humidity: 66%
  • UV index: 3
  • Sunrise: 7:56 am CDT
  • Sunset: 6:28 pm CDT
  • ▼
  • Monday
  • Oct 26, 2026
  • 57°F
  • 48°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 13mphSE 135°
  • Humidity: 80%
  • UV index: 2
  • Sunrise: 7:58 am CDT
  • Sunset: 6:26 pm CDT
  • ▼
  • Tuesday
  • Oct 27, 2026
  • 61°F
  • 46°F
Mostly Cloudy
Mostly Cloudy
  • Precip. probability: 24%
  • Precipitation: 0"
  • Wind: 15mphSSE 153°
  • Humidity: 75%
  • UV index: 2
  • Sunrise: 7:59 am CDT
  • Sunset: 6:25 pm CDT
  • ▼
During the ten-day period, sun-filled, cloud-filled and rainy weather is forecasted.
With minimal precipitation of 0.04", rainfall is expected on Friday and Saturday.
Temperature differences will be noticeable over the next several days. Maximum temperatures are forecasted between 57.2°F and 75.2°F, while there will be also a marked difference in overnight low temperatures, as the lowest temperatures will be recorded between 39.2°F and 57.2°F.
The warmest day will be Thursday, with a maximum of 75.2°F; with a maximum temperature of 57.2°F, next Sunday and Monday will be the coldest days.
Updated: Oct 18, 2026 @ 14:16:25 UTC
Published by: Weather U.S. | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate

Frequently asked questions

Today, in Arlington, sunny skies and pleasant visibility are expected.

Today, the highest temperature will be 64.4°F, while the lowest temperature will be 39.2°F.
The highest temperature will be slightly warmer than the average maximum of 55.6°F in October. The lowest temperature today will be in line with the average low temperature.

On Sunday, in Arlington, sunrise was at 7:47 am and sunset will be at 6:39 pm (CDT).

In Arlington, the length of the day today will be 10h and 52min.