South Dakota Weather Forecast
South Dakota weather: 70°F, clear sky. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Snow forecast for South Dakota
No snow is in the current forecast window for South Dakota.
0 of the next 16 nights are forecast to reach freezing.
Historically, average lows drop below freezing in January, February, March, November and December.
16-day forecast for South Dakota
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Mon, Oct 5 | ☀️ Clear sky | 85° / 53° | 1% | 11 mph | 5 |
| Tue, Oct 6 | ☁️ Overcast | 82° / 51° | 0% | 8 mph | 5 |
| Wed, Oct 7 | ☁️ Overcast | 76° / 53° | 0% | 7 mph | 5 |
| Thu, Oct 8 | ☁️ Overcast | 71° / 55° | 1% | 13 mph | 4 |
| Fri, Oct 9 | ☁️ Overcast | 73° / 53° | 2% | 16 mph | 4 |
| Sat, Oct 10 | ☁️ Overcast | 89° / 61° | 1% | 18 mph | 4 |
| Sun, Oct 11 | ☁️ Overcast | 65° / 52° | 20% | 19 mph | 3 |
| Mon, Oct 12 | 🌦️ Light drizzle | 51° / 46° | 30% · 0,1 in | 15 mph | 1 |
| Tue, Oct 13 | 🌦️ Light drizzle | 47° / 39° | 27% · 0,1 in | 21 mph | 2 |
| Wed, Oct 14 | ☁️ Overcast | 53° / 38° | 23% | 16 mph | 4 |
| Thu, Oct 15 | ☀️ Clear sky | 57° / 36° | 18% | 7 mph | 4 |
| Fri, Oct 16 | ☀️ Clear sky | 65° / 42° | 12% | 8 mph | 4 |
| Sat, Oct 17 | ☀️ Clear sky | 68° / 46° | 3% | 8 mph | 4 |
| Sun, Oct 18 | ☀️ Clear sky | 64° / 44° | 3% | 7 mph | 4 |
| Mon, Oct 19 | ☀️ Clear sky | 72° / 46° | 3% | 13 mph | 4 |
| Tue, Oct 20 | ☀️ Clear sky | 79° / 53° | 1% | 18 mph | 4 |
Climate in South Dakota month by month
Average high, average low and total rainfall, based on three years of reanalysis data.
| Month | Avg high | Avg low | Rainfall | Rating |
|---|---|---|---|---|
| January | 28° | 11° | 0,4 in | ★★☆☆☆ |
| February | 39° | 19° | 0,3 in | ★★☆☆☆ |
| March | 51° | 28° | 0,6 in | ★★★☆☆ |
| April | 58° | 38° | 2,9 in | ★★★☆☆ |
| May | 70° | 50° | 3,6 in | ★★★★☆ |
| June | 80° | 61° | 3,8 in | ★★★★☆ |
| July | 89° | 68° | 1,9 in | ★★★★★ |
| August | 84° | 64° | 2,7 in | ★★★★☆ |
| September | 79° | 60° | 1,9 in | ★★★★☆ |
| October | 64° | 45° | 1,5 in | ★★★★☆ |
| November | 47° | 31° | 0,7 in | ★★★☆☆ |
| December | 38° | 21° | 1,1 in | ★★☆☆☆ |
Climate type: Continental. Source: Open-Meteo archive (ERA5).
What to pack, what to skip
- Lightweight, light-coloured clothing and a refillable water bottle
- Sunglasses, a brimmed hat and SPF 30+
- If your dates are flexible, avoid January, February and December - historically the least comfortable months here.
See the South Dakota forecast by time range
South Dakota weather - more answers
Explore South Dakota
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Frequently asked questions
Where is South Dakota?
South Dakota is a state in United States. Its coordinates are 44.3683, -100.351. It lies in North America.
What is the weather like in South Dakota right now?
It is currently 70°F (21°C) with clear sky. Humidity is 55% and wind is 10 mph.
When is the best time to visit South Dakota?
June, July, August and September offer the most comfortable conditions in South Dakota, which has a continental climate. January, February 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 3:32 PM.
How many people live in South Dakota?
South Dakota has a population of approximately 920.000.
What are the top things to do in South Dakota?
Popular options include Badlands National Park, Wind 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, Wind 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. |
|---|---|
| Forecast and observations | Open-Meteo (ECMWF and national models). |
| Air quality and pollen | Copernicus CAMS via Open-Meteo. US AQI scale. |
| Climate averages | ERA5 reanalysis via the Open-Meteo archive, aggregated over 3 years. |
| Official alerts | US National Weather 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 October 5, 2026 at 3:32 PM local time. Live blocks refresh every 15 minutes; climate averages monthly.
