Tidal Station IL

Calumet Harbor

NOAA Station 9087044 • 41.7297, -87.5383 NOAA CO-OPS
Great Lakes Station

The Great Lakes are freshwater and do not experience ocean tides. Instead, water levels change due to wind, barometric pressure, and seiches (standing waves caused by weather systems). Water level data uses the IGLD (International Great Lakes Datum) reference.

Current Conditions

Wind
Water Temp
Next Tide
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24-Hour Tide Forecast

Tide Schedule

Monday, July 20, 2026
Time Type Height

5-Day Weather Forecast

Location

Interactive station map Loads when you reach this section.

Weather

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Station Details

Station ID
9087044
Data Available
Tides
Timezone
CST

Nearby Access Sites