Dewart Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Dewart Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Dewart Lake today is 28.6°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature is above 82°F (28°C). This is very warm water, which may feel almost hot to most people. Swimming in such conditions is perfect for those seeking relaxation and comfort in the water. These waters are often preferred for relaxation in hot weather, as the water temperature does not cool the body significantly. However, it is important to remember that in such warm waters, caution is necessary, as prolonged exposure without rest can lead to overheating. 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 |
|---|---|---|---|
| AUG 4 | 28.0°C | 25.6°C | |
| AUG 5 | 28.0°C | 25.6°C | |
| AUG 6 | 27.8°C | 25.6°C | |
| AUG 7 | 27.8°C | 25.6°C | |
| AUG 8 | 27.8°C | 25.6°C | |
| AUG 9 | 27.9°C | 25.6°C | |
| AUG 10 | 28.5°C | 25.6°C | |
| AUG 11 | 28.6°C | 25.6°C | |
| AUG 12 | 25.6°C | 28.5°C | |
| AUG 13 | 25.6°C | 28.3°C | |
| AUG 14 | 25.6°C | 28.2°C | |
| AUG 15 | 25.6°C | 28.0°C | |
| AUG 16 | 25.6°C | 27.9°C | |
| AUG 17 | 25.6°C | 27.7°C | |
| AUG 18 | 25.6°C | 27.6°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 | 2°C | 5°C |
| February | 1°C | 4°C | 6°C |
| March | 3°C | 6°C | 9°C |
| April | 6°C | 10°C | 14°C |
| May | 11°C | 15°C | 20°C |
| June | 16°C | 20°C | 24°C |
| July | 23°C | 27°C | 30°C |
| August | 23°C | 26°C | 29°C |
| September | 19°C | 23°C | 27°C |
| October | 14°C | 17°C | 19°C |
| November | 5°C | 11°C | 16°C |
| December | 0°C | 4°C | 7°C |
Dewart Lake: Water Temperature by Location
Dewart Lake: Weather Forecast
August 12
August 13
August 14
August 15
August 16
Location & Local Information
Dewart Lake in northeastern Indiana experiences a clear seasonal rhythm in water temperature. In winter months the surface commonly approaches freezing, roughly 32–40°F (0–4°C), and the lake can develop ice cover depending on the year. Spring sees a steady rise, typically from about 40–60°F (4–16°C) as the water mixes and heats. Peak summer temperatures often arrive in June through August, when surface readings frequently range from the low 70s to low 80s°F (about 22–28°C), creating the warmest and most comfortable conditions for recreation. In autumn the lake cools again to roughly 50–65°F (10–18°C) before winter sets in.
Swimming in and around Dewart Lake is commonly practiced, particularly during the warm summer months when water temperatures are most suitable. Whether swimming is permitted in a given spot depends on local rules, private property boundaries, and periodic water-quality assessments; seasonal issues such as algal blooms, high bacterial counts after heavy rains, dense aquatic vegetation, or ice cover can make swimming unsafe at times. Visitors and residents are advised to follow posted advisories, respect private beaches, and use common-sense precautions such as checking recent conditions and avoiding swimming alone or in poor visibility.