South Dakota weather

Usually in April
- 15
- 1
- 8
Weather by month
Now Today
- 3
- 11
5-day forecast

Below are the temperatures expected today at popular destinations in South Dakota. Select a destination to compare today's forecast with average weather conditions.

More destinations >>

Viator: Free cancellation on experiences & activities

Sale

Book tours, activities & experiences with free cancellation
Receive full refund if you cancel at least 24 hours before
Use 'Reserve Now & Pay Later' to secure activities today

Go to Viator deal >>

View all Viator offers

Tour & activity finder

Destination

Recommended for South Dakota

The weather guide for South Dakota (Sioux Falls) shows long term weather averages processed from data supplied by CRU (University of East Anglia) & today's weather forecast provided by meteoblue. Find out more about our data sources.

Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec

When is the best time to go to South Dakota?

The best time to go to South Dakota (Sioux Falls) is June based on the following average weather conditions.

Maximum daytime temperature = 22 - 30°C [remove]
Daily hours of sunshine = 10 hours or more [remove]

Change the criteria to reflect your weather preferences.

1.5
Jan
1.5
Feb
1.5
Mar
2
Apr
4.5
May
5
Jun
4
Jul
4.5
Aug
4
Sep
1.5
Oct
1
Nov
0.5
Dec

Change criteria

Max Day Temperature (°C)

-4
Jan
-1
Feb
6
Mar
15
Apr
22
May
27
Jun
30
Jul
29
Aug
23
Sep
16
Oct
6
Nov
-2
Dec

Hours of Sunshine (daily)

6
Jan
6
Feb
7
Mar
8
Apr
9
May
11
Jun
11
Jul
10
Aug
8
Sep
7
Oct
5
Nov
4
Dec

Best time to go for the weather

Destination

Daytime temperature

Sunshine hours

Sea temperature

Monthly rainfall

Days with some rain

Heat & humidity

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

More about the USA

Which is the hottest month in South Dakota?

The hottest time of year in Sioux Falls, South Dakota is normally July. Expect maximum daytime temperatures to reach 30°C with moderate heat and humidity.

Which month has the most rain in South Dakota?

In terms of rainfall, June is usually the wettest month in Sioux Falls, South Dakota with 92mm on average. There are normally 11 days in June with some rain.

When is it sunniest in South Dakota?

The sunniest time of year in Sioux Falls, South Dakota is normally July with bright sunshine on average for 74% of daylight hours; that's 11 hours of sunshine per day.

What is the flight time to South Dakota from the UK?

The flight time to South Dakota from the UK is typically 12.5 hours.

What is the time difference between South Dakota and the UK?

The time difference between South Dakota and the UK is GMT-6 to GMT-7 hours.

What is the main language spoken in South Dakota?

The main language spoken in South Dakota is English.

Learn a language for South Dakota with Busuu^*, Lingoda^* and Rocket Languages^*.

What is the currency in South Dakota?

The currency in South Dakota is the US Dollar (USD).

Send money to South Dakota with Monito^*, Wise^* and World Remit^*.

Which plugs are used in South Dakota?

South Dakota uses electrical plug type A + B (120 Volts).

Which side of the road do they drive on in South Dakota?

They drive on the right side of the road in South Dakota.

Do you need a visa for South Dakota?

Yes, UK passport holders do need a visa to enter South Dakota.

Check USA visa requirements for all passport holders with VisaHQ^* and iVisa.com^*.

Compare South Dakota weather with the USA

Below the South Dakota weather chart shows average maximum daytime temperature for South Dakota, USA (Sioux Falls) and the USA (Washington).

Maximum daytime temperature (°C)

South Dakota, USA (Sioux Falls)

USA (Washington)

Jan

Feb

Mar

Apr

May

Jun

Jul

Aug

Sep

Oct

Nov

Dec

-4

-1

-2