Canton Lake — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Canton Lake, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Canton Lake today is 22.9°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 68°F (20°C) to 74°F (23°C). The water is warm and pleasant for swimming, and in this range, one can stay in the water for extended periods without the risk of hypothermia. This is the ideal temperature for relaxation, swimming, and water sports. Families with children, as well as outdoor enthusiasts, will enjoy swimming and time spent in the water. For most people, this is the optimal temperature for a comfortable beach experience. 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 |
|---|---|---|---|
| JUN 23 | 22.4°C | 21.5°C | |
| JUN 24 | 22.4°C | 21.5°C | |
| JUN 25 | 22.4°C | 21.5°C | |
| JUN 26 | 22.7°C | 21.5°C | |
| JUN 27 | 22.1°C | 21.5°C | |
| JUN 28 | 22.4°C | 21.5°C | |
| JUN 29 | 22.3°C | 21.5°C | |
| JUN 30 | 22.9°C | 21.5°C | |
| JUL 1 | 26.5°C | 23.1°C | |
| JUL 2 | 26.5°C | 23.3°C | |
| JUL 3 | 26.5°C | 23.4°C | |
| JUL 4 | 26.5°C | 23.6°C | |
| JUL 5 | 26.5°C | 23.8°C | |
| JUL 6 | 26.5°C | 24.0°C | |
| JUL 7 | 26.5°C | 24.2°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 | 3°C | 7°C |
| February | 1°C | 4°C | 6°C |
| March | 3°C | 7°C | 11°C |
| April | 7°C | 16°C | 25°C |
| May | 14°C | 20°C | 25°C |
| June | 18°C | 22°C | 25°C |
| July | 23°C | 27°C | 30°C |
| August | 21°C | 26°C | 30°C |
| September | 20°C | 25°C | 29°C |
| October | 10°C | 16°C | 22°C |
| November | 4°C | 10°C | 15°C |
| December | 0°C | 3°C | 7°C |
Canton Lake: Water Temperature by Location
Canton Lake: Weather Forecast
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Location & Local Information
Canton Lake, a small reservoir in central Illinois, experiences the typical seasonal water temperature cycles of Midwestern lakes. Surface temperatures in winter commonly sit near freezing, roughly 32–40°F (0–4°C), while spring warms from about 40–65°F (4–18°C) as air temperatures rise and stratification begins. Summer surface readings often reach the warmest levels, generally 70–85°F (21–29°C) on hot days and sometimes higher in shallow bays; deeper waters remain cooler. By fall the lake cools back to roughly 50–70°F (10–21°C) as turnover mixes the water. Actual temperatures vary with depth, wind, recent weather, inflows, and time of day, so spot measurements can differ from these typical ranges.
Swimming at Canton Lake is commonly possible during the warmer months, but access and safety depend on local rules and conditions. Many visitors swim informally where shore access permits, yet there are often no lifeguards and signage or local ordinances may restrict swimming in particular areas for safety, water quality, or habitat protection. Algal blooms, submerged hazards, boat traffic, and episodic water-quality advisories can lead authorities to discourage or temporarily prohibit swimming. For safe recreation, check posted signs, local agency guidance, and current water-quality information before entering the water.