South Dakota Vejr Prognose
South Dakota weather: 7°C, klart. Hver time forecast, 14-day outlook, UV, air quality and the best time og visit.
South Dakota weather in september
One of the best months og visit South Dakota.
september runs 10°C warmer than the annual average in South Dakota.
Compare med august.
Vejr map for South Dakota
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Animated layers by Vindy. For pin-level detail and nearby places, see the interactive map below.
Klima in South Dakota month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Måned | Avg high | Avg low | Regnfall | Rating |
|---|---|---|---|---|
| januar | -2° | -12° | 11 mm | ★★☆☆☆ |
| februar | 4° | -7° | 8 mm | ★★☆☆☆ |
| marts | 10° | -3° | 16 mm | ★★★☆☆ |
| april | 15° | 3° | 73 mm | ★★★☆☆ |
| maj | 21° | 10° | 91 mm | ★★★★☆ |
| juni | 27° | 16° | 96 mm | ★★★★☆ |
| juli | 31° | 20° | 49 mm | ★★★★★ |
| august | 29° | 18° | 69 mm | ★★★★☆ |
| september | 26° | 15° | 48 mm | ★★★★☆ |
| oktober | 18° | 7° | 37 mm | ★★★★☆ |
| november | 8° | -1° | 18 mm | ★★★☆☆ |
| december | 4° | -6° | 28 mm | ★★☆☆☆ |
Klima type: Kontinental. Kilde: Open-Meteo archive (ERA5).
Bedste rejsetid South Dakota
Go in juni, juli, august and september. These months score highest on comfortable temperatures, low rainfall and useful daylight.
Hardest months: januar, februar and december - expect the least comfortable mix of heat, cold or rain.
What og pack, what og skip
- Lightweight, light-coloured clothing and a refillable water bottle
- sønglasses, a brimmed hat and SPF 30+
- Layers - the daily swing is 28°C, so mornings feel nothing like afternoons
- If your dates are flexible, avoid januar, februar and december - historically the least comfortable months here.
How South Dakota compares med nearby places
Annual averages, and the difference against South Dakota.
| Place | Distance | Avg temp | vs here | Annual rain |
|---|---|---|---|---|
| North Dakota | 273 km | 7°C | 3°C cooler | 590 mm |
| Theodore Roosevelt National Park | 382 km | 8°C | 2°C cooler | 409 mm |
| Nebraska | 495 km | 13°C | +3°C warmer | 822 mm |
| Omaha | 499 km | 13°C | +2°C warmer | 850 mm |
| Itasca State Park | 510 km | 6°C | 4°C cooler | 692 mm |
Se prognosen for South Dakota efter tidsinterval
South Dakota weather - more answers
Explore South Dakota
Every topic we hold for this place, and the same topic for the places around it.
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Frequently asked questions
Where is South Dakota?
South Dakota is a state in USA. Its coordinates are 44.3683, -100.351. It lies in Nordamerika.
What is the weather like in South Dakota lige nu?
It is currently 7°C (45°F) med klart. Luftfugtighed is 64% and wind is 3 km/h.
When is the best time og visit South Dakota?
juni, juli, august and september offer the most comfortable conditions in South Dakota, which has a continental climate. januar, februar and december are usually the hardest months for outdoor plans.
What time zone is South Dakota in?
South Dakota observes America/Chicago (UTC-05:00). The local time is 2:11 PM.
How many people live in South Dakota?
South Dakota has a population of approximately 920.000.
What are the top things og do in South Dakota?
Popular options include Badlands National Park, Vind Cave National Park, Mount Rushmore, Custer State Park and Theodore Roosevelt National Park.
What places are in South Dakota?
South Dakota covers 4 places in this atlas, including Badlands National Park, Vind Cave National Park, Mount Rushmore and Custer State Park.
Related articles
Data sources and methodology
| Place data | USPOTUS Atlas dataset (us-states) - coordinates, hierarchy and facts. |
|---|---|
| Prognose and observations | Open-Meteo (ECMWF and national models). |
| Luftkvalitet and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Klima averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Vejr Service. |
| Method | Scores, comparisons and advice on this page are computed from the inputs above. Distances are straight-line. Nothing is estimated where data is missing - the block is simply not shown. |
Last updated oktober 4, 2026 at 2:11 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
