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Weather in Rapid City, South Dakota for October 2026

Your guide to Rapid City weather in October - trends and predictions

    Snow Forecast ❄️

  • Snowfall in Rapid City during October is quite rare, with fewer than 2 snowy days on average.
    According to Rapid City snow forecast for October 2026, no snow is expected at the beginning of the month.

    • Temperatures

  • The forecast for the first days of October 2026 in Rapid City predicts temperatures to be around 24 °F, close to the historical average.

  • In general, the average temperature in Rapid City at the beginning of October is 23 °F. As the month progressed, temperatures tended to significantly cool down, reaching an average of 13.9 °F by the end of October.

    • Rain 🌧️

  • Rapid City experiences moderate rainfall in October, with an average of 6 rainy days and a total precipitation of 41.9 mm.

    • More

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

Average dry days
24
Dry days
Average rainy days
6
Rainy days
Average snowy days
1
Snow days
Average temperatures
18°/7°
Temperatures
Average wind speed
25 km/h
Avg max wind
Average humidity
51 %
Avg humidity

Rapid City Weather October

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

Temperatures trend during October in Rapid City

See the weather trend as well as the moving average line

October weather in Rapid City day by day

Click on a date for more information
September November
Date Weather Temperatures Rain Snow More
Oct. 1 Sunny
Sunny
 23° /13° 0 mm 0 cm
Oct. 2 Sunny
Sunny
 27° /12° 0 mm 0 cm
Oct. 3 Light rain shower
Light rain shower
 16° /4° 13.7 mm 0 cm
Oct. 4 Sunny
Sunny
 11° /2° 1.6 mm 0 cm
Oct. 5 Sunny
Sunny
 24° /4° 0 mm 0 cm
Oct. 6 Sunny
Sunny
 30° /15° 0 mm 0 cm
Oct. 7 Sunny
Sunny
 30° /16° 0 mm 0 cm
Oct. 8 Sunny
Sunny
 30° /16° 0 mm 0 cm
Oct. 9 Sunny
Sunny
 26° /15° 0 mm 0 cm
Oct. 10 Partly cloudy
Partly cloudy
 22° /13° 0 mm 0 cm
Oct. 11 Overcast
Overcast
 21° /12° 0 mm 0 cm
Oct. 12 Overcast
Overcast
 21° /9° 0 mm 0 cm
Oct. 13 Sunny
Sunny
 13° /3° 0 mm 0 cm
Oct. 14 Sunny
Sunny
 19° /5° 0 mm 0 cm
Oct. 15 Sunny
Sunny
 13° /4° 0 mm 0 cm
Oct. 16 Sunny
Sunny
 20° /7° 6.8 mm 0 cm
Oct. 17 Overcast
Overcast
 19° /7° 0.5 mm 0 cm
Oct. 18 Overcast
Overcast
 11° /5° 0.1 mm 0 cm
Oct. 19 Sunny
Sunny
 20° /3° 0 mm 0 cm
Oct. 20 Cloudy
Cloudy
 18° /7° 0 mm 0 cm
Oct. 21 Overcast
Overcast
 19° /5° 0 mm 0 cm
Oct. 22 Overcast
Overcast
 14° /5° 0 mm 0 cm
Oct. 23 Cloudy
Cloudy
 17° /3° 0 mm 0 cm
Oct. 24 Overcast
Overcast
 17° /6° 0 mm 0 cm
Oct. 25 Overcast
Overcast
 19° /4° 0 mm 0 cm
Oct. 26 Partly cloudy
Partly cloudy
 21° /6° 2 mm 0 cm
Oct. 27 Partly cloudy
Partly cloudy
 17° /6° 1.5 mm 0 cm
Oct. 28 Overcast
Overcast
 12° /4° 0 mm 0 cm
Oct. 29 Moderate or heavy rain shower
Moderate or heavy rain shower
 9° /1° 7.9 mm 0 cm
Oct. 30 Light sleet
Light sleet
 9° /2° 4.1 mm 1.4 cm
Oct. 31 Cloudy
Cloudy
 10° /0° 0 mm 0 cm
Next
Important Notice
Our weather forecast for Rapid City 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 Rapid City forecast closer to your planned date for the most up-to-date weather information.
Change Month
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Rapid City in October - FAQ

What are the expected maximum and minimum temperatures in Rapid City during October?
Enjoy moderate daytime temperatures of up to 18° and cooler nights around 7°. Ideal for a range of outdoor activities, from hiking to city tours.

How much rainfall should be expected in Rapid City during October?
In October, Rapid City can expect light to moderate rainfall, totaling 41.9 mm across approximately 6 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in Rapid City in October 2026?
Rapid City typically sees 1.4 cm of snowfall during October.

What are the typical wind conditions in Rapid City during October?
The average wind speed in Rapid City during October is 25 km/h, suggesting breezy to windy conditions, depending on your activities.

Rapid City snow forecast October 2026

Track daily snowfall levels and discover Rapid City’s snowy potential this October ❄️
On average, Rapid City sees 1 snowy days during October, with approximately 1.4 cm of total snowfall.

October rainfall patterns in Rapid City

Explore the daily rainfall trends and prepare for Rapid Citys October weather 💧
Typically, Rapid City has 6 rainy days in October with a total of 41.9 mm of rainfall.

UV exposure in Rapid City during October

Stay informed about UV levels for safe outdoor activities throughout the month of October ☀️

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Location coordinates Where is Rapid City?

Get accurate weather forecasts for Rapid City, located at latitude 44.081 and longitude -103.231. Stay updated with localized weather information tailored for Rapid City.

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