Tidal Station
IL
Calumet Harbor
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
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Weather
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Station Details
- Station ID
- 9087044
- Data Available
- Tides
- Timezone
- CST