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Lake Jacksonville

Lake Jacksonville Current Water Temperature and Forecast

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

37°F

TODAY

38°F

YESTERDAY

38°F

A WEEK AGO

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

Today the water temperature in Lake Jacksonville is lower than the same day in previous years. The water temperature range here in February is from 34°F to 43°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 Jacksonville 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
Feb 1538°F39°F
Feb 1638°F39°F
Feb 1738°F39°F
Feb 1837°F39°F
Feb 1937°F39°F
Feb 2037°F39°F
Feb 2138°F39°F
Feb 2237°F39°F
Feb 2339°F37°F
Feb 2439°F37°F
Feb 2539°F37°F
Feb 2639°F38°F
Feb 2739°F38°F
Feb 2839°F38°F
Mar 144°F38°F
Mar 244°F38°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 Lake Jacksonville by Month

January

MinimumAverageMaximum
32°F36°F41°F

February

MinimumAverageMaximum
34°F39°F43°F

March

MinimumAverageMaximum
39°F44°F48°F

April

MinimumAverageMaximum
50°F55°F59°F

May

MinimumAverageMaximum
61°F65°F70°F

June

MinimumAverageMaximum
66°F71°F75°F

July

MinimumAverageMaximum
79°F84°F88°F

August

MinimumAverageMaximum
73°F78°F82°F

September

MinimumAverageMaximum
72°F76°F81°F

October

MinimumAverageMaximum
64°F69°F73°F

November

MinimumAverageMaximum
43°F48°F52°F

December

MinimumAverageMaximum
34°F39°F43°F

Monthly Water Temperature Histogram for Lake Jacksonville

Known Beaches in the Area of Lake Jacksonville?

Illi-Wiki-Up Campground

Illi-Wiki-Up Campground is a 2-stars sandy beach, is located directly in Lake Jacksonville. Illi-Wiki-Up Campground is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Lake Jacksonville - Pioneer Point Campers Club

Lake Jacksonville - Pioneer Point Campers Club is a 3-stars sandy beach, located in a 3 km (2 miles) radius of Lake Jacksonville. There is parking. There are restrooms. Lake Jacksonville - Pioneer Point Campers Club is an excellent spot for fishing enthusiasts, offering good opportunities to catch local fish. The calm waters make this beach ideal for swimming, providing a safe and enjoyable experience for all visitors.

Link to the location of the beach

Lake Jacksonville Weather

FEBRUARY 23

27°F / 48°F
overcast

rain: 1% | wind: 15 mph

FEBRUARY 24

32°F / 55°F
overcast

rain: 2% | wind: 18 mph

FEBRUARY 25

37°F / 55°F
overcast

rain: 6% | wind: 17 mph

FEBRUARY 26

34°F / 52°F
light drizzle

rain: 29% | wind: 11 mph

Water Temperature in Lake Jacksonville: General Trends and Swimming Opportunities

Lake Jacksonville is located in the state of Illinois, in the county of Morgan, at an elevation of 643 feet (196 meters) above sea level.

Lake Jacksonville is a small lake. Its surface area is 0.72 sq mi (1.87 sq km). These are small water bodies often used for recreation, fishing, or irrigation.

The water temperature in Lake Jacksonville varies throughout the year, ranging from 32°F (0°C) in January to 88°F (31°C) in July. The average annual water temperature of the lake is 59°F (15°C). The months when the average water temperature in Lake Jacksonville exceeds 68 degrees Fahrenheit (20°C) are June, July, August, September and October.

The nearest cities ans towns to Lake Jacksonville are: South Jacksonville, Jacksonville, Waverly, Winchester, New Berlin, Roodhouse, Ashland, White Hall, Virginia, Greenfield in Illinois.

Geographical Location of Lake Jacksonville

Frequently Asked Questions About Lake Jacksonville and its Water Temperatures

What is the current water temperature in Lake Jacksonville?

The water temperature today in Lake Jacksonville is 37°F (2.7°C).

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

The average water temperature in Lake Jacksonville during the summer months is typically between 71°F to 84°F (22°C to 29°C), and it can reach up to 88°F (31°C) at its warmest. However, in some years, the temperature may exceed this range.

What is the water temperature in Lake Jacksonville in May?

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

What is the water temperature in Lake Jacksonville in September?

The average water temperature in Lake Jacksonville in September is typically between 72°F to 81°F (22°C to 27°C).

Where is Lake Jacksonville located?

Lake Jacksonville is located in the United States in the state of Illinois, in the county of Morgan, at an elevation of 643 feet (196 meters) above sea level. The surface area of the lake is 0.721 sq mi (1.87 sq km).

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

Yes, swimming is allowed in Lake Jacksonville, Illinois. There are designated swim areas and beaches equipped with safety measures for this recreational activity.

What are the coordinates of Lake Jacksonville?

Lake Jacksonville is located at coordinates 39.6680°N 90.1840°W.

Is Lake Lake Jacksonville a popular vacation spot among Americans?

Lake Jacksonville is among the top 1,000 most popular lakes in the United States, which is impressive considering there are tens of thousands of lakes in the country.

What species of fish can be found in Lake Jacksonville?

Lake Jacksonville is home to fish species such as Largemouth bass (best caught in Spring, Fall), Smallmouth bass (Spring, Fall), Channel catfish (Spring, Summer), Bluegill (Spring, Summer), Northern pike (Spring, Fall), Walleye (Spring, Fall), Yellow perch (Spring, Winter).