South Dakota
October
Weather in South Dakota for October 2025
Your guide to South Dakota weather in October - trends and predictions
In general, the average temperature in South Dakota at the beginning of October is 21.7 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 11.1 °F by the end of October.
The climate of South Dakota in October is notably wet, with an average of 11 rainy days.
Snowfall in South Dakota during October is quite rare, with fewer than 2 snowy days on average.
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19
Dry days
11
Rainy days
1
Snow days
16°/5°
Temperatures
25 km/h
Avg max wind
67 %
Avg humidity
South Dakota in October average weather
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| Mon. | Tue. | Wed. | Thu. | Fri. | Sat. | Sun. |
|---|---|---|---|---|---|---|
| 1  26° | 2  30° | 3  21° | 4 21° | 5  22° | ||
| 6 15° | 7  17° | 8 24° | 9 22° | 10  23° | 11 21° | 12 17° |
| 13  13° | 14  10° | 15 12° | 16  18° | 17 23° | 18 18° | 19 20° |
| 20 26° | 21 22° | 22 21° | 23 19° | 24 18° | 25 16° | 26 15° |
| 27  12° | 28  7° | 29 13° | 30 9° | 31 6° |
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Temperatures trend during October in South Dakota
See the weather trend as well as the moving average line
October weather day by day
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| Date | Weather | Temperatures | Rain | Snow | More |
|---|---|---|---|---|---|
| Oct. 1 | Thundery outbreaks possible | 26° /11° | 1.3 mm | 0 cm | |
| Oct. 2 | Patchy rain possible | 30° /12° | 0 mm | 0 cm | |
| Oct. 3 | Moderate or heavy rain with thunder | 21° /10° | 25.2 mm | 0 cm | |
| Oct. 4 | Thundery outbreaks possible | 21° /8° | 2.8 mm | 0 cm | |
| Oct. 5 | Overcast | 22° /10° | 0 mm | 0 cm | |
| Oct. 6 | Patchy rain possible | 15° /5° | 0.5 mm | 0 cm | |
| Oct. 7 | Partly cloudy | 17° /1° | 0 mm | 0 cm | |
| Oct. 8 | Overcast | 24° /5° | 0 mm | 0 cm | |
| Oct. 9 | Partly cloudy | 22° /4° | 0 mm | 0 cm | |
| Oct. 10 | Sunny | 23° /6° | 0 mm | 0 cm | |
| Oct. 11 | Overcast | 21° /8° | 0 mm | 0 cm | |
| Oct. 12 | Light rain shower | 17° /6° | 21.4 mm | 0 cm | |
| Oct. 13 | Torrential rain shower | 13° /5° | 24 mm | 0 cm | |
| Oct. 14 | Light drizzle | 10° /3° | 0.4 mm | 0 cm | |
| Oct. 15 | Overcast | 12° /1° | 0 mm | 0 cm | |
| Oct. 16 | Mist | 18° /-2° | 0 mm | 0 cm | |
| Oct. 17 | Sunny | 23° /3° | 0 mm | 0 cm | |
| Oct. 18 | Light drizzle | 18° /9° | 0.7 mm | 0 cm | |
| Oct. 19 | Patchy rain possible | 20° /9° | 0 mm | 0 cm | |
| Oct. 20 | Sunny | 26° /5° | 0 mm | 0 cm | |
| Oct. 21 | Sunny | 22° /10° | 0 mm | 0 cm | |
| Oct. 22 | Mist | 21° /5° | 0 mm | 0 cm | |
| Oct. 23 | Mist | 19° /3° | 0 mm | 0 cm | |
| Oct. 24 | Light rain shower | 18° /7° | 1.4 mm | 0 cm | |
| Oct. 25 | Light rain shower | 16° /4° | 1.5 mm | 0 cm | |
| Oct. 26 | Fog | 15° /4° | 1 mm | 0 cm | |
| Oct. 27 | Light snow | 12° /2° | 0 mm | 0 cm | |
| Oct. 28 | Heavy snow | 7° /3° | 1.7 mm | 1.4 cm | |
| Oct. 29 | Overcast | 13° /4° | 0 mm | 0 cm | |
| Oct. 30 | Overcast | 9° /0° | 0 mm | 0 cm | |
| Oct. 31 | 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.
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 16° 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?
Significant rainfall exceeding 163.8 mm is expected in South Dakota during October, occurring over more than 11 days. Preparing for wet conditions is recommended in your planning.
Is snowfall common in South Dakota during October?
South Dakota experiences an average snowfall of 2.8 cm during October, occurring over 1 days, which may interest winter sports enthusiasts.
What are the typical wind conditions in South Dakota during October?
The average wind speed in South Dakota during October is 25 km/h, suggesting breezy to windy conditions, depending on your activities.
October rainfall patterns in South Dakota
Explore the daily rainfall trends and prepare for South Dakotas October weather 💧
October snowfall in South Dakota
Track daily snowfall levels and discover South Dakota’s snowy potential this October ❄️
UV exposure in South Dakota during October
Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️
Provinces in South Dakota
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