South Dakota, United States Weather
- South Dakota, United States Weather
- Current conditions
- Weather forecast
- Averages and extremes
- Yesterday's Data
- Temperature and possibility of rain in South Dakota over the next 12 hours
- Temperature and possibility of rain in South Dakota in the coming days
- Rainfall in South Dakota in the coming days
- South Dakota Weather Summary
- Weather averages by month
- South Dakota's weather
- Frequently asked questions
- Comments
Current conditions
Condition: Overcast
Pressure: 955 hPa
Feel like: 14 °C
Temperature: 15°C
Cloud: 100%
Humidity: 94%
Wind: ENE - 13 km/h
Visibility: 12.6 km
30 Day Averages and Extremes
- Average high 21.3°C
- Average low 12.5°C
- Hottest day 35°C (05 September 2026)
- Coldest day 4°C (30 September 2026)
- Average humidity 75.0%
- Days with precipitation 23 days
- Highest precipitation 34 mm (21 September 2026)
Yesterday's Data
- Max: 18°C
- Min: 15°C
- Total Precipitation: 0 mm
Temperature and possibility of rain in South Dakota over the next 12 hours
Temperature and possibility of rain in South Dakota in the coming days
Rainfall in South Dakota in the coming days
South Dakota Climate Summary
South Dakota features a Humid continental, no dry season, hot summer (Köppen classification: Dfa), with an average annual temperature of 10.25ºC (50.45ºF), which is about -2.39% lower than the national average for United States. Annually, the city experiences approximately 36.74 millimeters (1.45 inches) of rainfall, spread across 78.63 rainy days, accounting for 21.54% of the year.
| Longitude | 43.9695148 |
| Latitude | -99.9018131 |
| Yearly high temperature | 13.99ºC (57.18ºF) |
| Yearly low temperature | 4.58ºC (40.24ºF) |
| Hottest month | July 31.08ºC (87.94ºF) |
| Coldest month | January -11.12ºC (11.98ºF) |
| Yearly precip | 36.74mm (1.45in) |
| Days with rainfall | 78.63 days (21.54%) |
| Driest month | November (64.58%) |
| Wettest month | May (66.57%) |
Weather averages by month
| Month | High / Low (°C) | Rain |
|---|---|---|
| January | -3.86° / -11.12° | 3.64 days |
| February | -2.08° / -9.49° | 4.82 days |
| March | 6.82° / -1.55° | 4.91 days |
| April | 13.2° / 3.59° | 9.27 days |
| May | 19.74° / 9.78° | 11.45 days |
| June | 26.73° / 16.03° | 10.91 days |
| July | 31.08° / 19.24° | 9.18 days |
| August | 29.81° / 17.77° | 8.36 days |
| September | 25.08° / 13.49° | 5.36 days |
| October | 15.3° / 5.96° | 4.45 days |
| November | 7.33° / -0.92° | 2.55 days |
| December | -1.23° / -7.85° | 3.73 days |
South Dakota's weather
- New York
- California
- Illinois
- Texas
- Arizona
- Pennsylvania
- New Mexico
- South Carolina
- Oklahoma
- Mississippi
- Wyoming
- West Virginia
- Idaho
- Alabama
- Maryland
- District of Columbia
- Utah
- Guantanamo Bay
- Oregon
- Louisiana
- Maine
- New Hampshire
- Alaska
- Tennessee
- Ohio
- Hawaii
- Nebraska
- Rhode Island
- North Carolina
- Colorado
- New Jersey
- Iowa
- North Dakota
- Washington
- Michigan
- Nevada
- Arkansas
- Florida
- Kansas
- Massachusetts
- Minnesota
- Missouri
- Vermont
- Virginia
- Connecticut
- Wisconsin
- Indiana
- Kentucky
- Delaware
- Georgia
- Montana
Frequently asked questions
1. What is the hottest month in South Dakota?
July has the highest average monthly temperature (daily mean of 31.08ºC) and January are the coolest (daily mean of -11.12ºC).
2. What should I wear in South Dakota today?
For today's mild weather in South Dakota, with temperatures between 12ºC to 15ºC (53.6ºF to 59.0ºF), consider wearing:
- Sun hat (if spending time outdoors)
- Scarf (optional)
- Light jacket (for cooler periods)
- Cotton socks
Temperature
Air quality
Satisfactory air quality, minimal pollution, low risk
- CO2 439
- CO 125
- NH3 0
- NO2 3
- O3 46
- PM10 1
- PM25 1
- SO2 0
- CH4 1,388