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Big Sioux River
Big Sioux River Current Water Temperature and Forecast
On this page, you will find comprehensive information about the water temperature in Big Sioux River, including current readings, historical data and trends, monthly averages, as well as weather forecasts and upcoming temperature predictions. We find every spot where you can swim and tell you what the water temperature is there today and throughout the year.
Current Water Temperature in Big Sioux River
61°F
TODAY
55°F
YESTERDAY
51°F
A WEEK AGO
As of today, the minimum water temperature in the Big Sioux River ranges from 47°F (8°C) to 50°F (10°C). This is still cool water, suitable only for experienced swimmers or those accustomed to cold water. Swimming in such conditions is possible, but not recommended for prolonged periods. Extra caution should be taken during extended exposure, as the cold water can cause heat loss and lead to hypothermia. For added comfort, special clothing can be used.
It is important to note that these swimming tips and recommendations apply only in good weather. When the air temperature is below 68°F (20°C), and sometimes even below 77°F (25°C), swimming can be unpleasant even with relatively high water temperatures.
Analysis, Historical Data, and Forecast of Water Temperature
Water Temperature Chart for Big Sioux River Over the Last 30 Days
Today the water temperature in Big Sioux River is higher than the same day in previous years. The water temperature range here in May is from 46°F to 70°F. The water temperature is trending upward, and it has increased both over the past 30 days and the past week.
The forecasted water temperature values for Big Sioux River are presented in the table below.
The actual water temperature values near the shore may differ by a few degrees from the stated values. For the development of the forecast, we use our own mathematical model that takes into account the current water temperature changes, historical data, and key weather trends, including wind strength and direction, and air temperature in each specific region.
Daily Water Temperature Chart
| Date | Current | Average | Forecast |
|---|---|---|---|
| Apr 29 | 51°F | 50°F | |
| Apr 30 | 51°F | 50°F | |
| May 1 | 52°F | 56°F | |
| May 2 | 52°F | 56°F | |
| May 3 | 55°F | 56°F | |
| May 4 | 55°F | 56°F | |
| May 5 | 55°F | 56°F | |
| May 6 | 61°F | 56°F | |
| May 7 | 56°F | 60°F | |
| May 8 | 56°F | 60°F | |
| May 9 | 56°F | 60°F | |
| May 10 | 56°F | 60°F | |
| May 11 | 56°F | 60°F | |
| May 12 | 56°F | 60°F | |
| May 13 | 56°F | 59°F | |
| May 14 | 56°F | 59°F |
Water Temperature Ranges in Big Sioux River by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 40°F | 48°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 40°F | 48°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 42°F | 52°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 50°F | 61°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 56°F | 70°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 57°F | 65°F | 72°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 68°F | 75°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 71°F | 73°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 52°F | 64°F | 66°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 56°F | 61°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 47°F | 61°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 37°F | 40°F | 46°F |
Monthly Water Temperature Histogram for Big Sioux River
Water Temperature in Cities and Towns on Big Sioux River
Big Sioux River Weather
MAY 7
57°F / 81°F
overcastrain: 6% | wind: 14 mph
MAY 8
54°F / 75°F
moderate drizzlerain: 8% | wind: 13 mph
MAY 9
57°F / 75°F
overcastrain: 8% | wind: 11 mph
MAY 10
59°F / 82°F
overcastrain: 7% | wind: 13 mph
MAY 11
57°F / 82°F
partly cloudyrain: 2% | wind: 14 mph
Water Temperature in Big Sioux River: General Trends and Swimming Opportunities
Source Coteau des Prairies
• location Roberts County, South Dakota
Mouth Missouri River
• location Sioux City, Iowa
• coordinates 42.490805°N 96.445490°W
Length 419 mi (674 km)
The Big Sioux River, flowing through South Dakota, Minnesota, and Iowa, is a tributary of the Missouri River that plays a significant role in the region's geography and recreation. Water temperatures in the river fluctuate seasonally, with summer temperatures typically reaching the 70s Fahrenheit (21-26°C) due to warmer air and increased sunlight. In winter, the water temperature drops significantly, often approaching freezing levels, as the river is affected by the harsh Midwest climate.
Swimming in the Big Sioux River is not widely popular, primarily because of the water's quality and flow characteristics. In many areas, the river is shallow, with a silty bottom, and sections may experience periodic issues with pollution from agricultural runoff and urban areas. These factors can impact the safety and appeal of swimming. That said, certain stretches of the river are popular for kayaking, canoeing, and fishing, offering opportunities for outdoor enthusiasts to enjoy the water in other ways.
For those seeking a place to swim, nearby lakes, reservoirs, or designated public swimming spots in the region are often more suitable options. However, the Big Sioux River remains a valuable natural resource, offering scenic views and recreational possibilities beyond traditional swimming activities.
Geographical Location of Big Sioux River
Frequently Asked Questions About Big Sioux River and its Water Temperatures
What is the current water temperature in Big Sioux River?
The water temperature today in Big Sioux River ranges from 49°F (9.5°C) to 61°F (16.1°C).
What is the water temperature in Big Sioux River during the summer months?
The average water temperature in Big Sioux River during the summer months is typically between 65°F to 71°F (19°C to 21°C), and it can reach up to 75°F (24°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in Big Sioux River in May?
The average water temperature in Big Sioux River in May ranges from 46°F to 70°F (8°C to 21°C).
What is the water temperature in Big Sioux River in September?
The average water temperature in Big Sioux River in September is typically between 52°F to 66°F (11°C to 19°C).
Where does Big Sioux River flow?
Big Sioux River flows through United States (South Dakota, Minnesota, Iowa).
Is it possible to swim in the Big Sioux River?
Yes, it is possible to swim in the Big Sioux River. However, water quality can vary, and it's important to check local advisories for safety.
What major cities are located on Big Sioux River?
Cities along the course of Big Sioux River include Sioux Falls (South Dakota).