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Lake Decatur
Lake Decatur Current Water Temperature and Forecast
On this page, you will find comprehensive information about the water temperature in Lake Decatur, 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
49°F
TODAY
51°F
YESTERDAY
49°F
A WEEK AGO
As of today, the minimum water temperature in the Lake Decatur 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 Lake Decatur Over the Last 30 Days
Today the water temperature in Lake Decatur is higher than the same day in previous years. The water temperature range here in March is from 32°F to 52°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 Lake Decatur 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 |
|---|---|---|---|
| Mar 22 | 49°F | 42°F | |
| Mar 23 | 50°F | 42°F | |
| Mar 24 | 49°F | 42°F | |
| Mar 25 | 50°F | 42°F | |
| Mar 26 | 50°F | 42°F | |
| Mar 27 | 51°F | 42°F | |
| Mar 28 | 51°F | 42°F | |
| Mar 29 | 49°F | 42°F | |
| Mar 30 | 42°F | 49°F | |
| Mar 31 | 42°F | 49°F | |
| Apr 1 | 53°F | 49°F | |
| Apr 2 | 53°F | 49°F | |
| Apr 3 | 53°F | 49°F | |
| Apr 4 | 53°F | 49°F | |
| Apr 5 | 53°F | 50°F | |
| Apr 6 | 53°F | 50°F |
Water Temperature Ranges in Lake Decatur by Month
January
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 35°F | 39°F |
February
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 35°F | 39°F |
March
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 42°F | 52°F |
April
| Minimum | Average | Maximum |
|---|---|---|
| 48°F | 53°F | 57°F |
May
| Minimum | Average | Maximum |
|---|---|---|
| 61°F | 65°F | 70°F |
June
| Minimum | Average | Maximum |
|---|---|---|
| 70°F | 75°F | 79°F |
July
| Minimum | Average | Maximum |
|---|---|---|
| 79°F | 84°F | 88°F |
August
| Minimum | Average | Maximum |
|---|---|---|
| 75°F | 80°F | 84°F |
September
| Minimum | Average | Maximum |
|---|---|---|
| 72°F | 76°F | 81°F |
October
| Minimum | Average | Maximum |
|---|---|---|
| 55°F | 59°F | 63°F |
November
| Minimum | Average | Maximum |
|---|---|---|
| 43°F | 48°F | 52°F |
December
| Minimum | Average | Maximum |
|---|---|---|
| 32°F | 36°F | 41°F |
Monthly Water Temperature Histogram for Lake Decatur
Lake Decatur Weather
MARCH 29
55°F / 64°F
overcastrain: 51% | wind: 23 mph
MARCH 30
45°F / 64°F
dense intensity drizzlerain: 49% | wind: 19 mph
MARCH 31
30°F / 45°F
moderate rain showersrain: 51% | wind: 24 mph
APRIL 1
25°F / 39°F
overcastrain: 14% | wind: 17 mph
Water Temperature in Lake Decatur: General Trends and Swimming Opportunities
Lake Decatur is located in the state of Illinois, in the county of Macon, at an elevation of 610 feet (186 meters) above sea level.
Lake Decatur is a medium lake. Its surface area is 4.5 sq mi (11.8 sq km). Typically versatile lakes with developed ecosystems; popular for water sports and tourism.
The water temperature in Lake Decatur 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 57°F (14°C). The months when the average water temperature in Lake Decatur exceeds 68 degrees Fahrenheit (20°C) are June, July, August and September.
The nearest cities ans towns to Lake Decatur are: Long Creek, Decatur, Forsyth, Mount Zion, Cerro Gordo, Harristown, Warrensburg, Macon, Maroa, Bethany in Illinois.
Geographical Location of Lake Decatur
Nearby Lakes
Frequently Asked Questions About Lake Decatur and its Water Temperatures
What is the current water temperature in Lake Decatur?
The water temperature today in Lake Decatur is 49°F (9.7°C).
What is the water temperature in Lake Decatur during the summer months?
The average water temperature in Lake Decatur during the summer months is typically between 75°F to 84°F (24°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 Decatur in May?
The average water temperature in Lake Decatur in May ranges from 61°F to 70°F (16°C to 21°C).
What is the water temperature in Lake Decatur in September?
The average water temperature in Lake Decatur in September is typically between 72°F to 81°F (22°C to 27°C).
Where is Lake Decatur located?
Lake Decatur is located in the United States in the state of Illinois, in the county of Macon, at an elevation of 610 feet (186 meters) above sea level. The surface area of the lake is 4.538 sq mi (11.75 sq km).
Is it possible to swim in Lake Decatur and what are the possibilities for this?
Yes, it is possible to swim in Lake Decatur, Illinois. However, swimming is typically allowed in designated areas only and subject to local regulations and conditions.
What are the coordinates of Lake Decatur?
Lake Decatur is located at coordinates 39.8570°N 88.8810°W.
Is Lake Lake Decatur a popular vacation spot among Americans?
Lake Decatur enjoys local popularity among the residents of State Illinois, and nationally, it ranks in the top 10 percent of all lakes in the country.
What species of fish can be found in Lake Decatur?
Lake Decatur is home to fish species such as Largemouth bass (best caught in Spring, Fall), Smallmouth bass (Spring, Fall), Bluegill (Spring, Summer), Channel catfish (Spring, Summer), Flathead catfish (Spring, Summer), White bass (Spring, Summer), Walleye (Spring, Fall), Northern pike (Spring, Fall), Yellow perch (Spring, Winter).