Chicago — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Chicago, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Chicago today is 25.1°C.
Water Temperature: Daily Trends, Historical Records, and Forecast
✅ As of today, the minimum water temperature ranges from 75°F (23°C) to 79°F (26°C). This is a very comfortable temperature for swimming, and many people can enjoy prolonged stays in the water without feeling cold. The water is pleasantly warm, making it ideal for relaxation and water sports. This temperature range is particularly popular among tourists, as it combines comfort and safety for health. 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 30 | 22.0°C | 18.3°C | |
| JUL 1 | 23.6°C | 20.6°C | |
| JUL 2 | 23.7°C | 20.6°C | |
| JUL 3 | 24.6°C | 20.6°C | |
| JUL 4 | 25.7°C | 20.6°C | |
| JUL 5 | 26.1°C | 20.6°C | |
| JUL 6 | 25.0°C | 20.6°C | |
| JUL 7 | 25.1°C | 20.6°C | |
| JUL 8 | 20.6°C | 24.9°C | |
| JUL 9 | 20.6°C | 24.7°C | |
| JUL 10 | 20.6°C | 24.4°C | |
| JUL 11 | 20.6°C | 24.2°C | |
| JUL 12 | 20.6°C | 24.0°C | |
| JUL 13 | 20.6°C | 23.8°C | |
| JUL 14 | 20.6°C | 23.5°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 | 6°C |
| February | -2°C | 1°C | 4°C |
| March | -2°C | 4°C | 10°C |
| April | 2°C | 8°C | 15°C |
| May | 4°C | 12°C | 20°C |
| June | 13°C | 18°C | 24°C |
| July | 15°C | 21°C | 27°C |
| August | 18°C | 22°C | 25°C |
| September | 16°C | 21°C | 25°C |
| October | 10°C | 15°C | 20°C |
| November | 5°C | 10°C | 15°C |
| December | 1°C | 4°C | 6°C |
Chicago: Weather Forecast
July 8
July 9
July 10
July 11
July 12
Location & Local Information
In Chicago, the water of Lake Michigan can vary significantly in temperature throughout the year, but it tends to be cooler compared to many other popular beach destinations. During the summer months, lake water temperatures typically range from 65°F to 75°F (18°C to 24°C), providing a refreshing option for swimming, especially on hot days. However, the temperature can drop significantly during the spring and fall, dipping as low as 40°F to 50°F (4°C to 10°C), making swimming less inviting unless you're prepared for much colder water.
Swimming in Lake Michigan in Chicago is a popular activity during the summer, especially along the city's many beaches, such as North Avenue Beach and Oak Street Beach. These spots are well-maintained and offer amenities like lifeguards, restrooms, and concessions. While the water can be chilly, especially in the early summer, many locals and visitors still take a dip to cool off. The lake's clear water and sandy shores make it a picturesque location for swimming and sunbathing.
The city also offers some precautions for safety, as the lake's water can be subject to currents and waves. The beaches typically have lifeguards on duty, and it's important to swim in designated areas to avoid strong currents that can sometimes make swimming more dangerous. Despite the cooler water, Chicago's Lake Michigan offers a refreshing and scenic option for those looking to enjoy a summer swim.