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

49.6

°F

May 9, 02:28

Trend:

increasing

Yesterday:

49.0°F

Tomorrow:

50.2°F

Sunrise:

05:37

Sunset:

19:57

Day Length:

14 h. 20 min.

Chicago in May

Minimum:

34.1°F

Average:

37.1°F

Maximum:

39.1°F

Water temperature in Chicago today

As of now, in Chicago, the water temperature is 49.6°F. Swimming in water of this temperature is considered as extremely cold, and there's a substantial risk of hypothermia if exposed for more than a brief duration. Today's reading is 1.4°F higher than the average recorded on this particular day in recent years. Since yesterday, there was a slight increase in temperature. This indicates a warming trend over the past day. According to the forecast, we expect the temperature to rise a bit.

Recent water temperature and forecast

The water temperature today is above average for the last two weeks, showing a small increase in temperature. It also falls within the range of the average temperature recorded for this date, suggesting a consistent weather trend. The maximum temperature recorded for this date was 53.4°F on 2024, while the historical minimum was 46.3°F on 2023.

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 suggests a gradual increase. The average temperature is expected to rise up to 51.0°F, with minimum temperature starting at 49.9°F, while the maximum might reach 52.6°F.

Daily water temperature in Chicago

Date Current Year

actual* / forecast**

last year 10 years average
Apr 25 46.3°F 48.1°F 44.7°F
Apr 26 47.2°F 45.7°F 45.0°F
Apr 27 47.6°F 45.0°F 45.1°F
Apr 28 46.8°F 43.2°F 45.0°F
Apr 29 47.8°F 43.4°F 45.1°F
Apr 30 48.3°F 44.7°F 45.6°F
May 1 50.5°F 44.8°F 45.7°F
May 2 49.8°F 45.4°F 46.0°F
May 3 50.0°F 46.4°F 46.3°F
May 4 50.5°F 48.5°F 46.6°F
May 5 50.1°F 49.5°F 46.9°F
May 6 49.9°F 50.8°F 47.3°F
May 7 49.9°F 51.6°F 47.3°F
May 8 49.0°F 53.2°F 47.6°F
May 9 49.6°F 53.4°F 48.2°F
May 10 50.2°F 53.5°F 48.8°F
May 11 49.9°F 53.1°F 48.5°F
May 12 50.6°F 53.8°F 49.2°F
May 13 50.8°F 54.1°F 49.4°F
May 14 51.1°F 54.3°F 49.7°F
May 15 52.2°F 56.1°F 50.8°F
May 16 52.6°F 56.8°F 51.2°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 12 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 14, 2018, dipping to 32.0°F. The average readings by season are 36.7°F in Winter, 43.1°F in Spring, 68.6°F in Summer, and 59.5°F in Autumn.