South Dakota Weather Forecast
South Dakota weather: 79°F, overcast. Hourly forecast, 14-day outlook, UV, air quality and the best time to visit.
Risk assessment for South Dakota
Derived from the current forecast window - not an official warning.
Peak gusts of 37 mph and 1 thunderstorm day in the next 16 days.
Wettest single day forecast at 0,8 in, 1,6 in across the window. Flash flooding risk rises sharply above 50 mm in a day.
Active alerts for South Dakota
Derived from the forecast. No official alert feed is wired for this country yet.
16-day forecast for South Dakota
Daily highs and lows, precipitation and UV.
| Day | Conditions | High / Low | Precip | Wind | UV |
|---|---|---|---|---|---|
| Sat, Aug 22 | ☁️ Overcast | 87° / 59° | 0% | 7 mph | 7 |
| Sun, Aug 23 | 🌦️ Light drizzle | 91° / 66° | 21% · 0,0 in | 16 mph | 7 |
| Mon, Aug 24 | ☁️ Overcast | 98° / 68° | 15% | 16 mph | 7 |
| Tue, Aug 25 | ☁️ Overcast | 96° / 72° | 15% | 16 mph | 7 |
| Wed, Aug 26 | ☁️ Overcast | 89° / 68° | 1% | 17 mph | 7 |
| Thu, Aug 27 | 🌦️ Light drizzle | 88° / 67° | 12% · 0,0 in | 12 mph | 5 |
| Fri, Aug 28 | ☁️ Overcast | 83° / 62° | 37% | 16 mph | 5 |
| Sat, Aug 29 | 🌦️ Light showers | 79° / 62° | 37% · 0,2 in | 18 mph | 4 |
| Sun, Aug 30 | 🌦️ Light showers | 89° / 65° | 18% · 0,3 in | 14 mph | 7 |
| Mon, Aug 31 | 🌦️ Light drizzle | 89° / 67° | 18% · 0,0 in | 13 mph | 7 |
| Tue, Sep 1 | 🌦️ Drizzle | 87° / 65° | 15% · 0,1 in | 18 mph | 7 |
| Wed, Sep 2 | ⛈️ Thunderstorm | 86° / 68° | 15% · 0,8 in | 13 mph | 6 |
| Thu, Sep 3 | 🌦️ Light drizzle | 87° / 65° | 14% · 0,0 in | 16 mph | 7 |
| Fri, Sep 4 | 🌧️ Heavy drizzle | 92° / 71° | 13% · 0,2 in | 21 mph | 7 |
| Sat, Sep 5 | 🌦️ Light drizzle | 79° / 64° | 11% · 0,0 in | 16 mph | 6 |
| Sun, Sep 6 | ☁️ Overcast | 89° / 63° | 26% | 11 mph | 7 |
What this means for South Dakota
Today is slightly warmer than average for August. The forecast high of 87°F is 3.2°F above the 84°F typical for this month.
Rain is very unlikely today - plans do not need a backup.
No weather-related travel disruption is expected today. Roads and airports should run normally.
Northern Hemisphere, so peak summer falls in June to August.
The gap between the warmest and coldest month averages 91°F.
See the South Dakota forecast by time range
South Dakota weather - more answers
Explore South Dakota
Every topic we hold for this place, and the same topic for the places around it.
Weather for related places
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 79°F (26°C) with overcast. Humidity is 40% and wind is 7 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 4:16 AM.
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 August 23, 2026 at 4:16 AM local time. Live blocks refresh every 15 minutes; climate averages monthly.
