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Lake Saint John
Lake Saint John Current Water Temperature and Forecast
On this page, you will find comprehensive information about the water temperature in Lake Saint John, 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 Lake Water Temperature Information
42°F
TODAY
49°F
YESTERDAY
52°F
A WEEK AGO
As of today, the minimum water temperature in the Lake Saint John ranges from 41°F (5°C) to 47°F (8°C). This water temperature is still quite low, and swimming in such conditions may only be comfortable for hardened individuals. It is recommended to limit the time spent in the water to avoid hypothermia. For those not accustomed to cold water, it is better to refrain from swimming. However, if you decide to enter the water, it is advisable to wear a warm wetsuit for protection against the cold.
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 Lake Saint John Over the Last 30 Days
Today the water temperature in Lake Saint John is lower than the same day in previous years. The water temperature range here in November is from 39°F to 50°F. The water temperature has decreased over the past 7 days but has increased over the past month.
The forecasted water temperature values for Lake Saint John 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 |
|---|---|---|---|
| Nov 4 | 52°F | 45°F | |
| Nov 5 | 52°F | 45°F | |
| Nov 6 | 50°F | 45°F | |
| Nov 7 | 50°F | 45°F | |
| Nov 8 | 50°F | 45°F | |
| Nov 9 | 49°F | 45°F | |
| Nov 10 | 49°F | 45°F | |
| Nov 11 | 49°F | 45°F | |
| Nov 12 | 45°F | 42°F | |
| Nov 13 | 45°F | 42°F | |
| Nov 14 | 45°F | 42°F | |
| Nov 15 | 45°F | 42°F | |
| Nov 16 | 45°F | 43°F | |
| Nov 17 | 45°F | 43°F | |
| Nov 18 | 45°F | 43°F | |
| Nov 19 | 45°F | 43°F |
Water Temperature Ranges in Lake Saint John by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 34°F | 44°F | 54°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 46°F | 59°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 47°F | 63°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 36°F | 52°F | 68°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 46°F | 58°F | 70°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 61°F | 68°F | 75°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 69°F | 75°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 68°F | 75°F | 82°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 63°F | 67°F | 72°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 41°F | 54°F | 66°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 39°F | 45°F | 50°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 43°F | 47°F | 52°F |
Monthly Water Temperature Histogram for Lake Saint John
Known Beaches in the Area of Lake Saint John?
Arlington Beach
Arlington Beach is a 2-stars sandy beach, located in a 8 km (5 miles) radius of Lake Saint John. There is parking.
South Poinsett Access Area
South Poinsett Access Area is a 2-stars sandy beach, located in a 9 km (6 miles) radius of Lake Saint John. There are restrooms. South Poinsett Access Area is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish.
Lake Saint John Weather
NOVEMBER 12
28°F / 54°F
overcastrain: 0% | wind: 12 mph
NOVEMBER 13
37°F / 57°F
overcastrain: 0% | wind: 9 mph
NOVEMBER 14
39°F / 63°F
overcastrain: 0% | wind: 20 mph
NOVEMBER 15
52°F / 61°F
overcastrain: 8% | wind: 17 mph
NOVEMBER 16
39°F / 57°F
overcastrain: 14% | wind: 16 mph
Water Temperature in Lake Saint John: General Trends and Swimming Opportunities
Lake Saint John (SD) is located in the state of South Dakota, in the county of Hamlin, at an elevation of 1650 feet (503 meters) above sea level.
Lake Saint John (SD) is a small lake. Its surface area is 1.99 sq mi (5.14 sq km). These are small water bodies often used for recreation, fishing, or irrigation.
The water temperature in Lake Saint John (SD) varies throughout the year, ranging from 39°F (4°C) in November to 82°F (28°C) in August. The average annual water temperature of the lake is 59°F (15°C). The months when the average water temperature in Lake Saint John (SD) exceeds 68 degrees Fahrenheit (20°C) are June, August and September.
The nearest cities ans towns to Lake Saint John are: Hayti, Volga, De Smet, Watertown, Brookings, Clear Lake in South Dakota.
Geographical Location of Lake Saint John
Nearby Lakes
Frequently Asked Questions About Lake Saint John and its Water Temperatures
What is the current water temperature in Lake Saint John?
The water temperature today in Lake Saint John is 42°F (5.4°C).
What is the water temperature in Lake Saint John during the summer months?
The average water temperature in Lake Saint John during the summer months is typically between 67°F to 78°F (19°C to 26°C), and it can reach up to 82°F (28°C) at its warmest. However, in some years, the temperature may exceed this range.
What is the water temperature in Lake Saint John in May?
The average water temperature in Lake Saint John in May ranges from 61°F to 70°F (16°C to 21°C).
What is the water temperature in Lake Saint John in September?
The average water temperature in Lake Saint John in September is typically between 64°F to 72°F (18°C to 22°C).
Where is Lake Saint John located?
Lake Saint John is located in the United States in the state of South Dakota, in the county of Hamlin, at an elevation of 1650 feet (503 meters) above sea level. The surface area of the lake is 1.986 sq mi (5.14 sq km).
Is it possible to swim in Lake Saint John and what are the possibilities for this?
Yes, it is possible to swim in Lake Saint John, South Dakota, provided that there are no local restrictions or advisories in place. The suitability for swimming may be influenced by factors such as water temperature, cleanliness, and weather conditions.
What are the coordinates of Lake Saint John?
Lake Saint John is located at coordinates 44.5650°N 97.1860°W.
Is Lake Lake Saint John a popular vacation spot among Americans?
Lake Saint John enjoys local popularity among the residents of State South Dakota, and nationally, it ranks in the top 10 percent of all lakes in the country.