Joliet — Current Water Temperature, Annual Trends and Forecast
This page provides information on the current water temperature in Joliet, trends, monthly ranges and the forecast for the coming days.
Current Water Temperature
Water Temperature in Joliet today is 23.3°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 3 | 20.2°C | 18.6°C | |
| JUN 4 | 21.1°C | 18.6°C | |
| JUN 5 | 21.2°C | 18.6°C | |
| JUN 6 | 21.4°C | 18.6°C | |
| JUN 7 | 22.4°C | 18.6°C | |
| JUN 8 | 22.3°C | 18.6°C | |
| JUN 10 | 23.3°C | 18.6°C | |
| JUN 11 | 18.6°C | 23.1°C | |
| JUN 12 | 18.6°C | 22.8°C | |
| JUN 13 | 18.6°C | 22.6°C | |
| JUN 14 | 18.6°C | 22.4°C | |
| JUN 15 | 18.6°C | 22.1°C | |
| JUN 16 | 18.6°C | 21.9°C | |
| JUN 17 | 18.6°C | 21.7°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 | 5°C | 9°C |
| February | 1°C | 5°C | 9°C |
| March | 3°C | 7°C | 11°C |
| April | 5°C | 10°C | 16°C |
| May | 8°C | 13°C | 21°C |
| June | 14°C | 19°C | 24°C |
| July | 17°C | 23°C | 28°C |
| August | 17°C | 22°C | 27°C |
| September | 11°C | 18°C | 24°C |
| October | 8°C | 15°C | 22°C |
| November | 3°C | 8°C | 16°C |
| December | 1°C | 5°C | 8°C |
Joliet: Weather Forecast
June 9
June 10
June 11
June 12
Location & Local Information
In Joliet, Illinois, the Des Plaines River flows through the city, offering a variety of outdoor recreational activities, although swimming is not commonly practiced. The water temperature in the Des Plaines River during the summer months typically ranges from 70°F to 80°F (21°C to 27°C), depending on the weather conditions. While this temperature range might seem appealing for swimming, the river's strong current and water quality make it less suitable for regular swimming activities. The river is often used for kayaking, fishing, and other water sports, with many people taking advantage of its scenic views and easy access points.
Joliet does not have public swimming areas in the Des Plaines River, as the river's swift currents can pose safety risks. Local authorities generally advise against swimming in the river, and public swimming is restricted to controlled, designated areas. The nearby parks and recreational areas do offer alternatives for water activities, such as fishing, boating, and canoeing, but they are not suitable for swimming. During the warmer months, when temperatures rise to around 75°F to 85°F (24°C to 29°C), many people prefer to visit local pools or nearby beaches instead of swimming in the river itself.
In terms of water temperature outside of the summer season, the Des Plaines River cools down considerably, especially in the fall and spring, with water temperatures typically dropping to around 45°F to 60°F (7°C to 16°C). This makes the river less inviting for swimming but still an attractive spot for other outdoor activities, such as hiking along the riverbank or enjoying the landscape. While swimming is not a popular option in the Des Plaines River near Joliet, the river provides an excellent location for enjoying various water-based outdoor pursuits.