All data are in degrees Fahrenheit

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Water temperature in Chicago

Detailed information about the current water temperature in Chicago. The trend over the last two weeks, daily averages, and precise forecast of the water temperature changes. Gain a deeper understanding of seasonal dynamics with monthly statistical analyses covering recent years.
Water temperature in Chicago now

73.2

°F

September 7, 05:25

Trend:

decreasing

Yesterday:

73.5°F

Tomorrow:

72.8°F

Sunrise:

06:23

Sunset:

19:13

Day Length:

12 h. 50 min.

Chicago in September

Minimum:

32.0°F

Average:

35.9°F

Maximum:

38.2°F

Water temperature in Chicago today

As of now, in Chicago, the water temperature is 73.2°F. Swimming in water of this temperature is seen as relatively warm and enjoyable for some individuals, although many might find it slightly too cool. Today's reading is 2.8°F higher than the average recorded on this particular day in recent years. The water temperature remains approximately unchanged from yesterday. According to the forecast, we expect the temperature to fall a bit.

Recent water temperature and forecast

Today's water temperature is considerably lower than the average registered over the last two weeks, indicating a slight cooling trend. It is also close to the historical maximum temperature for this date. The maximum temperature recorded for this date was 74.3°F on 2018, while the historical minimum was 63.0°F on 2019.

Observations from the last two weeks indicate that the water temperature was in proximity to the highest values recorded on those days in the past. The forecast for the upcoming week shows a gradual cooling trend. The average temperature is expected to be 72.0°F, the minimum temperature may reach 71.2°F, and the maximum might stay at 72.8°F.

Daily water temperature in Chicago

Date Current Year

actual* / forecast**

last year 10 years average
Aug 24 72.5°F 74.0°F 73.1°F
Aug 25 73.1°F 75.3°F 73.2°F
Aug 26 74.0°F 74.4°F 73.0°F
Aug 27 74.6°F 74.1°F 72.8°F
Aug 28 75.0°F 73.9°F 72.9°F
Aug 29 74.0°F 73.6°F 72.5°F
Aug 30 75.2°F 73.1°F 72.4°F
Aug 31 75.6°F 72.5°F 72.2°F
Sep 1 75.3°F 72.1°F 71.7°F
Sep 2 74.7°F 71.9°F 71.4°F
Sep 3 73.8°F 72.3°F 71.7°F
Sep 4 73.6°F 72.6°F 71.7°F
Sep 5 73.5°F 73.0°F 71.0°F
Sep 6 73.5°F 73.4°F 70.7°F
Sep 7 73.2°F 72.1°F 70.4°F
Sep 8 72.8°F 71.6°F 70.1°F
Sep 9 72.2°F 70.8°F 69.5°F
Sep 10 72.2°F 70.4°F 69.5°F
Sep 11 72.2°F 70.5°F 69.5°F
Sep 12 72.0°F 70.1°F 69.2°F
Sep 13 71.6°F 69.7°F 68.9°F
Sep 14 71.2°F 69.4°F 68.4°F

* actual - actual temperature values

** forecast - projected values for the next week

Real-time coastal temperatures could deviate by several degrees from the provided readings. These deviations often become evident following intense rainfall or strong winds.

Our forecasting methodology leverages a mathematical model, that uses current water and weather conditions, historical records, wind intensity and direction.

Water temperature in Chicago by month

In Chicago, there are only 5 days through the year when the water is warm enough to be comfortable for swimming.
The warmest water in Chicago was recorded on July 10, 2020, reaching a 78.0°F. While the coldest temperature occurred on January 4, 2014, dipping to 32.0°F. The average readings by season are 36.6°F in Winter, 42.8°F in Spring, 68.3°F in Summer, and 59.0°F in Autumn.