Evanston — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Evanston, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Evanston today is 18°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 |
|---|---|---|---|
| SEP 25 | 18.5°C | 20.7°C | |
| SEP 26 | 18.5°C | 20.7°C | |
| SEP 27 | 18.3°C | 20.7°C | |
| SEP 28 | 18.3°C | 20.7°C | |
| SEP 29 | 18.4°C | 20.7°C | |
| SEP 30 | 17.8°C | 20.7°C | |
| OCT 1 | 18.4°C | 15.0°C | |
| OCT 2 | 17.5°C | 15.0°C | |
| OCT 3 | 15.0°C | 17.9°C | |
| OCT 4 | 15.0°C | 17.7°C | |
| OCT 5 | 15.0°C | 17.6°C | |
| OCT 6 | 15.0°C | 17.4°C | |
| OCT 7 | 15.0°C | 17.3°C | |
| OCT 8 | 15.0°C | 17.1°C | |
| OCT 9 | 15.0°C | 17.0°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 | 1°C | 4°C | 6°C |
| February | -2°C | 1°C | 4°C |
| March | -2°C | 4°C | 9°C |
| April | 2°C | 8°C | 15°C |
| May | 4°C | 11°C | 19°C |
| June | 13°C | 18°C | 24°C |
| July | 16°C | 23°C | 30°C |
| August | 18°C | 23°C | 28°C |
| September | 16°C | 21°C | 26°C |
| October | 10°C | 15°C | 20°C |
| November | 5°C | 11°C | 17°C |
| December | 1°C | 5°C | 9°C |
Evanston: Weather Forecast
October 3
October 4
October 5
October 6
October 7
Location & Local Information
In Evanston, Illinois, Lake Michigan serves as a major focal point for recreation, offering beautiful beaches and opportunities for swimming during the warmer months. The water temperature in Lake Michigan can vary significantly depending on the season. During the summer months, the temperature generally ranges from 70°F to 75°F (21°C to 24°C), making it comfortable for swimming. As the water warms up in the late spring and early summer, the beaches in Evanston become popular spots for locals and visitors looking to enjoy the water.
Swimming in Lake Michigan near Evanston is a common activity, particularly at the city's public beaches, such as Lighthouse Beach and Clark Street Beach. However, the water quality can vary throughout the season, especially after heavy rains, so it's important to stay updated on water safety conditions. Lifeguards are typically on duty at the beaches during peak swimming season, providing safety and ensuring that visitors can enjoy the water with peace of mind.
In the cooler months, particularly in the fall and winter, the water temperature in Lake Michigan drops significantly, ranging from 40°F to 50°F (4°C to 10°C). Swimming is not common during this time, as the water becomes much too cold for most swimmers. Despite this, the lake remains a beautiful natural feature, attracting visitors for walks along the shoreline, birdwatching, and other outdoor activities. Swimming enthusiasts typically return to Evanston's beaches when the water warms up again in the spring and summer.