World sea water temperatures

Water temperature in Lake Forest (IL) in October

Is it warm enough to swim in Lake Forest in October? Average water temperature in Lake Forest in October is 57.7°F and therefore is not suitable for comfortable swimming. The warmest water in Lake Forest in October is 68.9°F, and the coldest is 45.3°F. To find out the sea temperature today and in the coming days, go to Current sea temperature in Lake Forest

Changes water temperature in Lake Forest in October 2024, 2023

To get an accurate forecast for the water temperature in Lake Forest for any chosen month, compare two years within a 10 year range using the chart below. In addition to the sea water temperature in Lake Forest, the selected years in the table also show the values of the maximum and minimum temperatures on each of the days of October.

You can choose any other years:

Year 1:   Year 2:


Day 2024 2023 Min Max
October 168.9°F62.2°F51.4°F68.9°F
October 268.9°F63.9°F50.2°F68.9°F
October 368.2°F65.1°F51.3°F68.2°F
October 467.6°F63.7°F52.2°F67.6°F
October 567.5°F62.4°F53.4°F67.5°F
October 667.5°F60.1°F53.4°F67.5°F
October 767.1°F57.9°F55°F67.1°F
October 866.2°F59.5°F54.5°F66.2°F
October 965.7°F61°F54.5°F66°F
October 1065.5°F61.2°F54.1°F65.7°F
October 1165.8°F60.1°F54.1°F66.4°F
October 1265.8°F60.4°F52.9°F66°F
October 1365.3°F60.4°F53.2°F65.8°F
October 1464.6°F59.9°F52.7°F65.3°F
October 1563.3°F58.6°F52.3°F65.1°F
Day 2024 2023 Min Max
October 1662.6°F58.6°F51.3°F64°F
October 1761.5°F59.2°F50.5°F63.5°F
October 1861.3°F59°F50.7°F63.1°F
October 1961°F59°F48.9°F63°F
October 2061.2°F58.6°F49.6°F63°F
October 2161.5°F58.3°F49.5°F61.9°F
October 2261°F58.3°F50°F61.9°F
October 2360.1°F57.9°F49.8°F61.5°F
October 2460.3°F58.3°F50°F60.6°F
October 2559°F58.1°F48°F59°F
October 2659°F58.1°F46.4°F59°F
October 2758.8°F57.9°F45.5°F58.8°F
October 2858.3°F57.7°F45.7°F58.3°F
October 2957.7°F57.4°F45.7°F57.7°F
October 3054.5°F56.7°F45.3°F57.4°F
October 3154°F55.4°F45.7°F56.8°F
Lake Forest water temp chart in October

Average water temperature in Lake Forest in October over a decade

20152016201720182019
57.6°F58.5°F59.9°F58.1°F51.6°F
20202021202220232024
52.7°F63°F57.7°F59.5°F63°F

Lake Forest sea state in October

Chart comparing the height of waves in Lake Forest in October over the past years. The red line indicates the height of the waves when swimming in the sea is prohibited. To view the current sea conditions, click on the graph.

Waves height in Lake Forest in October

Lake Forest water temperature during other months:

You can also view information about water temperature for other months by clicking on the month button below

Water temperature Lake Michigan in October

Where is the warm sea water in October?

Want to know where the water temperature in October is good for swimming? Select the continent of interest, the day of the month and the required water temperature

Region
Date (day and month)
Water temperature: min 60°F
 Average temperature  Maximum temperature

Temperature in neighboring cities

The nearest locations with the average water temperature in October. In addition, the maximum and minimum water temperatures for that month, recorded over the last decade, are shown

AvrMinMax
Illinois Beach State Park57.9°F46.2°F69.1°F
Evanston58.8°F46.9°F69.3°F
Rogers Park58.8°F46.9°F69.3°F
Winthrop Harbor57.7°F45.3°F69.1°F
Montrose Beach59°F47.5°F68.9°F
Foster Beach59°F47.5°F68.9°F
Simmons Island Beach57.6°F44.6°F69.1°F
Oak Street Beach59.2°F49.5°F68.7°F
North Avenue Beach59.2°F49.5°F68.7°F
Chicago59.4°F49.1°F68.7°F

Illinois photo gallery

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[1] - The "Blue Flag" is awarded to beaches which fulfill a number of criteria, including: the quality of the bathing water, which must be in accordance with the relevant European Union Directive environmental education and information and beach area management and safety.

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Our report for Lake Forest 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.

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