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Rend Lake

Rend Lake

© Ali Dibo

Rend Lake Current Water Temperature and Forecast

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

53°F

TODAY

55°F

YESTERDAY

52°F

A WEEK AGO

As of today, the minimum water temperature in the Rend Lake ranges from 50°F (10°C) to 54°F (12°C). The water is slightly warmer, but still cool for most people. Swimming in such conditions is possible, but for most people, the time spent in the water should be limited to avoid hypothermia. Even experienced swimmers may feel discomfort if they stay in the water for too long. To improve comfort and safety, a wetsuit 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 Rend Lake Over the Last 30 Days

Today the water temperature in Rend Lake is higher than the same day in previous years. The water temperature range here in March is from 36°F to 55°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 Rend 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

DateCurrentAverageForecast
Mar 2252°F46°F
Mar 2352°F46°F
Mar 2452°F46°F
Mar 2554°F46°F
Mar 2654°F46°F
Mar 2755°F46°F
Mar 2855°F46°F
Mar 2953°F46°F
Mar 3046°F52°F
Mar 3146°F52°F
Apr 156°F52°F
Apr 256°F52°F
Apr 356°F53°F
Apr 456°F53°F
Apr 556°F53°F
Apr 656°F53°F
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast

Water Temperature Ranges in Rend Lake by Month

January

MinimumAverageMaximum
32°F37°F41°F

February

MinimumAverageMaximum
34°F39°F43°F

March

MinimumAverageMaximum
36°F46°F55°F

April

MinimumAverageMaximum
52°F56°F61°F

May

MinimumAverageMaximum
57°F62°F66°F

June

MinimumAverageMaximum
70°F74°F79°F

July

MinimumAverageMaximum
75°F80°F84°F

August

MinimumAverageMaximum
70°F75°F79°F

September

MinimumAverageMaximum
73°F78°F82°F

October

MinimumAverageMaximum
68°F72°F77°F

November

MinimumAverageMaximum
45°F49°F54°F

December

MinimumAverageMaximum
39°F43°F48°F

Monthly Water Temperature Histogram for Rend Lake

Known Beaches in the Area of Rend Lake?

North Marcum Beach

North Marcum Beach is a 1-stars sandy beach, located in a 6 km (4 miles) radius of Rend Lake.

Rend Lake Weather

MARCH 29

57°F / 63°F
slight rain

rain: 57% | wind: 15 mph

MARCH 30

57°F / 72°F
slight rain showers

rain: 47% | wind: 15 mph

MARCH 31

36°F / 70°F
moderate drizzle

rain: 53% | wind: 22 mph

APRIL 1

27°F / 48°F
overcast

rain: 18% | wind: 18 mph

Water Temperature in Rend Lake: General Trends and Swimming Opportunities

Rend Lake is located in the state of Illinois, in the counties of Franklin, Jefferson, at an elevation of 390 feet (119 meters) above sea level.

Rend Lake is a medium lake. Its surface area is 26.7 sq mi (69.0 sq km). Typically versatile lakes with developed ecosystems; popular for water sports and tourism.

The water temperature in Rend Lake varies throughout the year, ranging from 32°F (0°C) in January to 84°F (29°C) in July. The average annual water temperature of the lake is 59°F (15°C). The months when the average water temperature in Rend Lake exceeds 68 degrees Fahrenheit (20°C) are June, July, August, September and October.

The nearest cities ans towns to Rend Lake are: Ina, Sesser, Benton, Christopher, Mount Vernon, West Frankfort, Zeigler, Du Quoin, Royalton, Johnston City in Illinois.

Geographical Location of Rend Lake

Nearby Lakes

Frequently Asked Questions About Rend Lake and its Water Temperatures

What is the current water temperature in Rend Lake?

The water temperature today in Rend Lake is 53°F (11.5°C).

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

The average water temperature in Rend Lake during the summer months is typically between 74°F to 80°F (23°C to 27°C), and it can reach up to 84°F (29°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in Rend Lake in May?

The average water temperature in Rend Lake in May ranges from 57°F to 66°F (14°C to 19°C).

What is the water temperature in Rend Lake in September?

The average water temperature in Rend Lake in September is typically between 73°F to 82°F (23°C to 28°C).

Where is Rend Lake located?

Rend Lake is located in the United States in the state of Illinois, in the counties of Franklin, Jefferson, at an elevation of 390 feet (119 meters) above sea level. The surface area of the lake is 26.659 sq mi (69.05 sq km).

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

Yes, it is possible to swim in Rend Lake, Illinois. There are designated swimming areas in the lake, namely South Sandusky Beach and North Marcum Day-Use Area.

What are the coordinates of Rend Lake?

Rend Lake is located at coordinates 38.1110°N 88.9670°W.

Is Lake Rend Lake a popular vacation spot among Americans?

Rend Lake is quite popular among Americans and ranks among the top 500 lakes in the United States.

What species of fish can be found in Rend Lake?

Rend Lake is home to fish species such as Largemouth bass (best caught in Spring, Fall), White crappie (Spring, Fall), Bluegill (Spring, Summer), Channel catfish (Spring, Summer), Flathead catfish (Spring, Summer), Black crappie (Spring, Fall), Walleye (Spring, Fall), Yellow bass (Spring, Summer), Gar (Summer), Freshwater drum (Summer).