Indiana Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Indiana Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Indiana Lake today is 17°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 60°F (15°C) to 65°F (18°C). The water is comfortable for most people, making it an ideal range for water sports enthusiasts. The temperature does not cause significant discomfort, and swimming will be pleasant for the majority. However, it's important to remember that prolonged exposure to the water can still lead to cooling, so it's essential to monitor the time spent in the water, especially for children or elderly people. 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.
Water Temperature Chart Over the Last 30 Days
Table of Daily Sea Temperature Data
| Date | Current | Average | Forecast |
|---|---|---|---|
| OCT 5 | 19.3°C | 16.5°C | |
| OCT 6 | 19.2°C | 16.5°C | |
| OCT 7 | 17.6°C | 16.5°C | |
| OCT 8 | 17.8°C | 16.5°C | |
| OCT 9 | 18.2°C | 16.5°C | |
| OCT 10 | 18.1°C | 16.5°C | |
| OCT 11 | 17.1°C | 16.5°C | |
| OCT 12 | 17.6°C | 16.5°C | |
| OCT 13 | 16.5°C | 17.0°C | |
| OCT 14 | 16.5°C | 17.0°C | |
| OCT 15 | 16.5°C | 16.9°C | |
| OCT 16 | 16.5°C | 16.9°C | |
| OCT 17 | 16.5°C | 16.9°C | |
| OCT 18 | 16.5°C | 16.9°C | |
| OCT 19 | 16.5°C | 16.8°C |
* Current - Actual water temperature value
** Average - Average water temperature on this day in recent years
*** Forecast - Our water temperature forecast
Actual nearshore water temperatures may fluctuate by several degrees from the reported values, especially following heavy rainfall or extended periods of strong winds. Certain wind patterns can cause colder, deeper waters to rise and replace the sun-warmed surface water, leading to noticeable variations.
Our forecast is based on a proprietary mathematical model that considers real-time water temperature changes, historical trends, key weather patterns, wind strength and direction, and air temperature specific to each region. Additionally, we incorporate data from other resorts to enhance accuracy.
Monthly Water Temperature Range (Min, Max & Average)
| Month | Min | Avg | Max |
|---|---|---|---|
| January | 0°C | 8°C | 15°C |
| February | 1°C | 8°C | 15°C |
| March | 2°C | 9°C | 16°C |
| April | 4°C | 12°C | 20°C |
| May | 9°C | 16°C | 22°C |
| June | 17°C | 21°C | 25°C |
| July | 23°C | 27°C | 31°C |
| August | 21°C | 24°C | 28°C |
| September | 19°C | 23°C | 27°C |
| October | 11°C | 17°C | 22°C |
| November | 4°C | 11°C | 17°C |
| December | 1°C | 6°C | 11°C |
Indiana Lake: Water Temperature by Location
Indiana Lake: Weather Forecast
October 13
October 14
October 15
October 16
October 17
Location & Local Information
At a typical lake in Indiana, surface water temperatures follow a clear seasonal cycle. In spring the water is cold, commonly ranging from about 40–60°F (4–16°C) as runoff and cool air keep lakes chilly. By early summer temperatures usually rise into the 65–75°F (18–24°C) band, and during mid to late summer shallow areas can reach 75–85°F (24–29°C) on warm, calm days. In autumn the surface cools again to roughly 50–65°F (10–18°C) before winter sets in, when ice formation and near-freezing conditions bring temperatures down toward 32°F (0°C) under ice cover in colder years. Deeper layers will remain colder year-round and lakes can be thermally stratified in summer, with warmer epilimnion waters above cooler hypolimnion waters.
Swimming is commonly permitted at public beaches and designated swimming areas at Indiana lakes, but permission depends on local rules, water quality, and safety conditions. Municipalities, park agencies, or lake associations often post advisories or close beaches for reasons such as high bacteria counts after heavy rains, harmful algal blooms, low visibility, or unsafe currents; lifeguards may be present only at staffed beaches. Before swimming it’s wise to check local advisories and obey signage, as allowed swimming is governed by public-health testing and site-specific safety measures.