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Grass Lake

Grass Lake Current Water Temperature and Forecast

On this page, you will find comprehensive information about the water temperature in Grass Lake, 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

8.5°C

TODAY

8.7°C

YESTERDAY

7.1°C

A WEEK AGO

As of today, the minimum water temperature in the Grass Lake 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 Grass Lake Over the Last 30 Days

Today the water temperature in Grass Lake is lower than the same day in previous years. The water temperature range here in May is from 8°C to 21°C. 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 Grass Lake 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	7.1°C	11.5°C
Apr 30	7.1°C	11.5°C
May 1	7.9°C	14.5°C
May 2	8.0°C	14.5°C
May 3	8.7°C	14.5°C
May 4	8.7°C	14.5°C
May 5	8.7°C	14.5°C
May 6	8.5°C	14.5°C
May 7		14.5°C	8.9°C
May 8		14.5°C	9.3°C
May 9		14.5°C	9.6°C
May 10		14.5°C	9.9°C
May 11		14.5°C	10.2°C
May 12		14.5°C	10.5°C
May 13		14.5°C	10.8°C
May 14		14.5°C	11.0°C

* Current - Actual water temperature value

** Average - Average water temperature on this day in recent years

*** Forecast - Our water temperature forecast

Water Temperature Ranges in Grass Lake by Month

January

Minimum	Average	Maximum
1°C	6.5°C	12°C

February

Minimum	Average	Maximum
1°C	8°C	15°C

March

Minimum	Average	Maximum
0°C	8.5°C	17°C

April

Minimum	Average	Maximum
3°C	11.5°C	20°C

May

Minimum	Average	Maximum
8°C	14.5°C	21°C

June

Minimum	Average	Maximum
18°C	20°C	22°C

July

Minimum	Average	Maximum
17°C	19.4°C	22°C

August

Minimum	Average	Maximum
23°C	25.6°C	28°C

September

Minimum	Average	Maximum
18°C	20°C	22°C

October

Minimum	Average	Maximum
5°C	7.2°C	10°C

November

Minimum	Average	Maximum
4°C	6.7°C	9°C

December

Minimum	Average	Maximum
6°C	8.3°C	11°C

Monthly Water Temperature Histogram for Grass Lake

Grass Lake Weather

MAY 7

11°C / 22°C

light drizzle

rain: 5% | wind: 24 km/h

MAY 8

11°C / 24°C

light drizzle

rain: 5% | wind: 20 km/h

MAY 9

13°C / 24°C

overcast

rain: 11% | wind: 20 km/h

MAY 10

13°C / 27°C

overcast

rain: 11% | wind: 20 km/h

Water Temperature in Grass Lake: General Trends and Swimming Opportunities

Grass Lake is located in the state of South Dakota, in the county of Codington, at an elevation of 1735 feet (529 meters) above sea level.

Grass Lake is a small lake. Its surface area is 2.52 sq mi (6.52 sq km). These are small water bodies often used for recreation, fishing, or irrigation.

The water temperature in Grass Lake 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 Grass Lake exceeds 68 degrees Fahrenheit (20°C) are June, August and September.

The nearest cities ans towns to Grass Lake are: Watertown, Webster, Clark, Hayti in South Dakota.

Geographical Location of Grass Lake

Nearby Lakes

Frequently Asked Questions About Grass Lake and its Water Temperatures

What is the current water temperature in Grass Lake?

The water temperature today in Grass Lake is 47°F (8.5°C).

What is the water temperature in Grass Lake during the summer months?

The average water temperature in Grass Lake 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 Grass Lake in May?

The average water temperature in Grass Lake in May ranges from 61°F to 70°F (16°C to 21°C).

What is the water temperature in Grass Lake in September?

The average water temperature in Grass Lake in September is typically between 64°F to 72°F (18°C to 22°C).

Where is Grass Lake located?

Grass Lake is located in the United States in the state of South Dakota, in the county of Codington, at an elevation of 1735 feet (529 meters) above sea level. The surface area of the lake is 2.516 sq mi (6.52 sq km).

Is it possible to swim in Grass Lake and what are the possibilities for this?

Yes, it is possible to swim in Grass Lake, South Dakota. However, please ensure local regulations are followed and safety measures such as supervision and swimming within designated areas are considered.

What are the coordinates of Grass Lake?

Grass Lake is located at coordinates 45.0700°N 97.3810°W.

Is Lake Grass Lake a popular vacation spot among Americans?

Grass Lake 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.