Wilmette water temp

This data the coastal Wilmette water temperature today, tomorrow and the upcoming days. Besides, you can also get information about the weather and surf forecast, as well as the data on sunrise / sunset and moonrise / moonset at a given point on any given day.

Current water temperature in Wilmette

Water temperature in Wilmette today is 66°F. Based on our historical data over a period of ten years, the warmest water in this day in Wilmette was recorded in 2017 and was 70.9°F, and the coldest was recorded in 2014 at 61.9°F. Water temperature in Wilmette is expected to drop to 62.8°F in the next 10 days. September average water temperature in Wilmette is 68.4°F, the minimum temperature is 56.8°F, and the maximum is 75°F.

The swimming season in Wilmette lasts from July to September. During those months, Wilmette water temperature does not drop below 68°F and therefore suitable for comfortable swimming. The average water temperature in Wilmette in winter reaches 36.7°F, in spring 42.8°F, in summer the average temperature rises to 68.2°F, and in autumn it is 58.5°F.

Wilmette water temperature now

Surf Forecast in Wilmette for today

Another important indicators for a comfortable holiday on the beach are the presence and height of the waves, as well as the speed and direction of the wind. Please find below data on the swell size for Wilmette. We calculate the swell size based on the mean wave height (trough to crest) of each third highest wave. For more information on surf forecasts for the next ten days, please visit sea state forecast Wilmette. Data in table shown for September 26, 2025, time in GMT 0 format (you can change the time zone on the sea state forecast page)

Surf report in Wilmette

Wilmette weather forecast

Current temperature and weather

Data in a table show Wilmette temperature today (September 26, 2025). For more information and forecast for a few days, go to the weather forecast Wilmette.

0-3 h	3-6 h	6-9 h	9-12 h
64°F	61°F	59.5°F	64°F

12-15 h	15-18 h	18-21 h	21-24 h
72°F	70.5°F	71.1°F	66.7°F

Wilmette water temperature by month

These figures shows the average, minimum and maximum monthly water temperature in Wilmette. In addition to the table values, the graph below displays of changes average surface temperature during the year. Values are calculated based on the data over the past 10 years. Using them, you can check the water temperature in Wilmette on any day of this period that interests you. Click on the month link and you will see a table for each day, or alternatively you can view the temperature curve of the month and select 2 different years you want to compare, either in a table or as a curve

Chart monthly average water temperature in Wilmette

Water temperature in Lake Michigan

The nearest beaches and cities from Wilmette with the water temperature today, as well as the air temperature and the state of the weather during the day and the average wave height for today

	Water	Weather		Wave
Winnetka	67.1°F	78.8°F		0' 7"
Glencoe	68.7°F	82.4°F		0' 7"
Evanston	63°F	78.8°F		0' 7"
Rogers Park	63°F	78.8°F		0' 7"
Montrose Beach	61.2°F	84.2°F		0' 7"
Foster Beach	61.2°F	84.2°F		0' 7"
Highland Park	69.4°F	82.4°F		0' 9"
Lake Forest	69.3°F	78.8°F		0' 9"
Oak Street Beach	67.6°F	84.2°F		0' 7"
North Avenue Beach	67.6°F	84.2°F		0' 7"

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Our report for Wilmette is compiled using satellite data together with in-situ observations to get the most reliable daily data of sea surface temperatures, surf forecasts, current temperatures and weather forecasts.