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Weather in South Dakota for October 2026

Your guide to South Dakota weather in October - trends and predictions

    Snow Forecast ❄️

  • Snowfall in South Dakota during October is quite rare, with fewer than 2 snowy days on average.

    • Temperatures

  • In general, the average temperature in South Dakota at the beginning of October is 23.4 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 11 °F by the end of October.

    • Rain 🌧️

  • South Dakota experiences moderate rainfall in October, with an average of 9 rainy days and a total precipitation of 84 mm.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
21
Dry days
Average rainy days
9
Rainy days
Average snowy days
1
Snow days
Average temperatures
18°/5°
Temperatures
Average wind speed
26 km/h
Avg max wind
Average humidity
60 %
Avg humidity

South Dakota Weather October

Move between months or click on a day
September
November
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Thundery outbreaks possible
27°
2
Sunny
30°
3
Moderate or heavy rain with thunder
25°
4
Thundery outbreaks possible
25°
5
Overcast
23°
6
Patchy rain possible
16°
7
Partly cloudy
18°
8
Sunny
24°
9
Partly cloudy
21°
10
Sunny
23°
11
Overcast
20°
12
Light rain shower
19°
13
Overcast
14°
14
Light drizzle
11°
15
Overcast
13°
16
Mist
21°
17
Sunny
22°
18
Overcast
16°
19
Patchy rain possible
19°
20
Sunny
20°
21
Sunny
18°
22
Mist
19°
23
Mist
17°
24
Light rain shower
18°
25
Overcast
14°
26
Fog
15°
27
Light snow
12°
28
Heavy snow
8°
29
Overcast
12°
30
Overcast
10°
31
Partly cloudy
6°

What’s the Weather Like in South Dakota This October?

Discover the average temperatures and weather trends across South Dakota’s cities this October.
CloudySioux Falls18 °F / 5 °FCloudyRapid City19 °F / 7 °FMore Locations

Temperatures trend during October in South Dakota

See the weather trend as well as the moving average line

October weather in South Dakota day by day

Click on a date for more information
September November
Date Weather Temperatures Rain Snow More
Oct. 1 Thundery outbreaks possible
Thundery outbreaks possible
 27° /12° 0.8 mm 0 cm
Oct. 2 Sunny
Sunny
 30° /14° 0 mm 0 cm
Oct. 3 Moderate or heavy rain with thunder
Moderate or heavy rain with thunder
 25° /11° 16.8 mm 0 cm
Oct. 4 Thundery outbreaks possible
Thundery outbreaks possible
 25° /11° 1.8 mm 0 cm
Oct. 5 Overcast
Overcast
 23° /11° 0 mm 0 cm
Oct. 6 Patchy rain possible
Patchy rain possible
 16° /5° 0.3 mm 0 cm
Oct. 7 Partly cloudy
Partly cloudy
 18° /2° 0 mm 0 cm
Oct. 8 Sunny
Sunny
 24° /5° 0 mm 0 cm
Oct. 9 Partly cloudy
Partly cloudy
 21° /7° 0 mm 0 cm
Oct. 10 Sunny
Sunny
 23° /8° 0 mm 0 cm
Oct. 11 Overcast
Overcast
 20° /6° 0 mm 0 cm
Oct. 12 Light rain shower
Light rain shower
 19° /8° 14.3 mm 0 cm
Oct. 13 Overcast
Overcast
 14° /5° 16 mm 0 cm
Oct. 14 Light drizzle
Light drizzle
 11° /4° 3 mm 0 cm
Oct. 15 Overcast
Overcast
 13° /3° 1.3 mm 0 cm
Oct. 16 Mist
Mist
 21° /3° 0 mm 0 cm
Oct. 17 Sunny
Sunny
 22° /6° 0 mm 0 cm
Oct. 18 Overcast
Overcast
 16° /8° 0.5 mm 0 cm
Oct. 19 Patchy rain possible
Patchy rain possible
 19° /6° 0 mm 0 cm
Oct. 20 Sunny
Sunny
 20° /5° 0 mm 0 cm
Oct. 21 Sunny
Sunny
 18° /8° 0 mm 0 cm
Oct. 22 Mist
Mist
 19° /3° 0 mm 0 cm
Oct. 23 Mist
Mist
 17° /2° 0 mm 0 cm
Oct. 24 Light rain shower
Light rain shower
 18° /5° 0.9 mm 0 cm
Oct. 25 Overcast
Overcast
 14° /5° 1 mm 0 cm
Oct. 26 Fog
Fog
 15° /5° 0.7 mm 0 cm
Oct. 27 Light snow
Light snow
 12° /4° 1.3 mm 0 cm
Oct. 28 Heavy snow
Heavy snow
 8° /4° 2.4 mm 0.9 cm
Oct. 29 Overcast
Overcast
 12° /3° 0 mm 0 cm
Oct. 30 Overcast
Overcast
 10° /0° 0 mm 0 cm
Oct. 31 Partly cloudy
Partly cloudy
 6° /-3° 2.1 mm 0 cm
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Important Notice
Our weather forecast for South Dakota in October is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the South Dakota forecast closer to your planned date for the most up-to-date weather information.
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South Dakota in October - FAQ

What are the expected maximum and minimum temperatures in South Dakota during October?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 5°. Ideal for a range of outdoor activities, from hiking to city tours.
How much rainfall should be expected in South Dakota during October?
Moderate rainfall is anticipated in South Dakota during October, with a total of 84 mm spread over approximately 9 days. Considering plans for rainy days is advisable.
Will it snow in South Dakota in October 2026?
South Dakota typically sees 1.4 cm of snowfall during October.
What are the typical wind conditions in South Dakota during October?
The average wind speed in South Dakota during October is 26 km/h, suggesting breezy to windy conditions, depending on your activities.

South Dakota snow forecast October 2026

Track daily snowfall levels and discover South Dakota’s snowy potential this October ❄️

October rainfall patterns in South Dakota

Explore the daily rainfall trends and prepare for South Dakotas October weather 💧

UV exposure in South Dakota during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
Counties in South Dakota
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Minnehaha CountyPennington County
Top locations in South Dakota
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Rapid CitySioux Falls
More Locations

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Location coordinates Where is South Dakota?

Get accurate weather forecasts for South Dakota, located at latitude 43.55 and longitude -96.7. Stay updated with localized weather information tailored for South Dakota.

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