Highland Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Highland Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Highland Lake today is 15°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
⚠️ As of today, the minimum water temperature ranges from 54°F (12°C) to 60°F (15°C). The water is significantly warmer, and swimming becomes possible for most people. However, caution may still be required for prolonged stays in the water, as extended exposure can cause discomfort. This is a suitable temperature range for short swims and for those accustomed to cooler water. For more comfortable swimming, it is recommended to use proper gear. 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 | 17.9°C | 16.7°C | |
| OCT 6 | 17.1°C | 16.7°C | |
| OCT 7 | 17.5°C | 16.7°C | |
| OCT 8 | 16.5°C | 16.7°C | |
| OCT 9 | 15.8°C | 16.7°C | |
| OCT 10 | 16.1°C | 16.7°C | |
| OCT 11 | 16.0°C | 16.7°C | |
| OCT 12 | 15.7°C | 16.7°C | |
| OCT 13 | 16.7°C | 15.1°C | |
| OCT 14 | 16.7°C | 15.2°C | |
| OCT 15 | 16.7°C | 15.3°C | |
| OCT 16 | 16.7°C | 15.3°C | |
| OCT 17 | 16.7°C | 15.4°C | |
| OCT 18 | 16.7°C | 15.5°C | |
| OCT 19 | 16.7°C | 15.6°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 | 4°C |
| February | 0°C | 3°C | 5°C |
| March | 0°C | 4°C | 8°C |
| April | 5°C | 8°C | 11°C |
| May | 9°C | 14°C | 18°C |
| June | 13°C | 17°C | 21°C |
| July | 18°C | 24°C | 29°C |
| August | 21°C | 24°C | 27°C |
| September | 19°C | 23°C | 26°C |
| October | 14°C | 17°C | 19°C |
| November | 8°C | 12°C | 15°C |
| December | 3°C | 6°C | 9°C |
Highland Lake: Water Temperature by Location
Highland Lake: Weather Forecast
October 13
October 14
October 15
October 16
October 17
Location & Local Information
Highland Lake in Connecticut follows the familiar seasonal rhythm of New England lakes, with surface water temperatures that vary considerably through the year. In winter the lake typically approaches freezing, with temperatures around 32–39°F (0–4°C) and often developing ice cover. Spring brings a gradual warming, roughly 40–60°F (4–15°C) as the ice breaks up and the water stratifies. By late spring and summer the surface commonly reaches a comfortable range for recreation, about 70–80°F (21–27°C) on warm days, sometimes briefly higher during heat waves. In autumn the water cools again to roughly 50–65°F (10–18°C) as air temperatures fall and the lake mixes.
Swimming is generally possible at Highland Lake during the warmer months where access is permitted, particularly from public beaches, docks or private shorefront properties; the summer temperature range makes open-water swimming comfortable for many. Whether swimming is allowed at a specific spot depends on local rules, ownership and safety considerations — some areas may be closed because of boat traffic, water-quality advisories such as algal blooms, or seasonal hazards. In winter swimming is unsafe except for experienced, properly equipped cold-water swimmers because of near-freezing water and ice. Always check local signs and advisories before entering the water.