South Dakota weather in October 2025

Expect 16°C daytime maximum temperatures in the shade with on average 7 hours of sunshine per day in South Dakota in October. Check more long-term weather averages for South Dakota in October before you book your next holiday to South Dakota in 2025/2026.

  • 16°C maximum daytime temperature in October in South Dakota (Sioux Falls)16
    16°C max day temperature
  • 7 hours of sunshine per day
  • 6 days with some rainfall in October in South Dakota (Sioux Falls)6
    6 days with some rainfall
  • 2°C minimum night-time temperature in October in South Dakota (Sioux Falls)2
    2°C min night temperature
  • 11 hours of daylight per day in October in South Dakota (Sioux Falls)11
    11 hours of daylight per day
  • No heat & humidity in October in South Dakota (Sioux Falls)0
    No heat & humidity
  • 43 mm monthly rainfall in October in South Dakota (Sioux Falls)43
    43 mm of monthly rainfall
  • UV (maximum) index 3 (Moderate) in October in South Dakota (Sioux Falls)3
    3 (Moderate) UV index

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The October weather guide for South Dakota (Sioux Falls) shows long term weather averages processed from data supplied by CRU (University of East Anglia), the Met Office & the Netherlands Meteorological Institute. Find out more about our data sources.

Top South Dakota destinations

Below are average maximum temperatures at popular countries, regions and places in South Dakota in October. Select a holiday destination to see more weather parameters.

All South Dakota destinations

Metric (°C / mm)  |  Imperial (°F / inches)

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How warm is it in South Dakota in October?

Daytime temperatures usually reach 16°C in Sioux Falls, South Dakota in October, falling to 2°C at night.

How sunny is it in South Dakota in October?

There are normally 7 hours of bright sunshine each day in Sioux Falls, South Dakota in October - that's 60% of daylight hours.

Does it rain in South Dakota in October?

There are usually 6 days with some rain in Sioux Falls, South Dakota in October and the average monthly rainfall is 43mm.

South Dakota October sunrise & sunset times

Browse the sunrise and sunset times for South Dakota in October 2025. Select a month to view South Dakota sunrise and sunset times for the next 12 months. The South Dakota sunrise and sunset times shown below are for Sioux Falls.

JanFebMarAprMayJunJulAugSepOctNovDec

Date Sunrise times Sunset times
Wednesday, 1st October 2025 06:25 18:07
Thursday, 16th October 2025 06:43 17:41
Friday, 31st October 2025 07:02 17:19

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