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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
34°F
TODAY
33°F
YESTERDAY
33°F
A WEEK AGO
As of today, the minimum water temperature in the Big Sioux River ranges less than 41°F (5°C). Such water is extremely cold and not recommended for swimming without proper preparation. In these conditions, the risk of hypothermia is very high, and prolonged exposure to the water can be hazardous to your health. If you decide to swim, it is important to have the appropriate gear, such as a wetsuit. Typically, only experienced swimmers or those who practice winter swimming venture into such waters.
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 lower than the same day in previous years. The water temperature range here in February is from 32°F to 48°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 |
|---|---|---|---|
| Feb 15 | 33°F | 40°F | |
| Feb 16 | 34°F | 40°F | |
| Feb 17 | 33°F | 40°F | |
| Feb 18 | 33°F | 40°F | |
| Feb 19 | 33°F | 40°F | |
| Feb 20 | 33°F | 40°F | |
| Feb 21 | 33°F | 40°F | |
| Feb 22 | 34°F | 40°F | |
| Feb 23 | 40°F | 35°F | |
| Feb 24 | 40°F | 35°F | |
| Feb 25 | 40°F | 35°F | |
| Feb 26 | 40°F | 36°F | |
| Feb 27 | 40°F | 36°F | |
| Feb 28 | 40°F | 36°F | |
| Mar 1 | 44°F | 37°F | |
| Mar 2 | 44°F | 37°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 |
|---|---|---|
| 37°F | 44°F | 52°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 41°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
FEBRUARY 23
27°F / 46°F
overcastrain: 0% | wind: 14 mph
FEBRUARY 24
34°F / 54°F
overcastrain: 6% | wind: 19 mph
FEBRUARY 25
36°F / 54°F
overcastrain: 6% | wind: 28 mph
FEBRUARY 26
36°F / 48°F
overcastrain: 25% | wind: 19 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 34°F (1.2°C) to 35°F (1.5°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).