To learn more about current water levels at other lakes/reservoirs in the Provo Watershed (i.e. Deer Creek, Jordanelle, etc.), follow this link: Central Utah Water Conservancy District Reservoir Data.
Water levels are updated hourly, and you can view lake levels over the past 90 days. The number given is the current water level compared to the compromise level, which is the point at which the lake is considered full. For example, if the site shows that current levels are -3.5, then the lake is 3.5 feet below full. When the lake is full, the average depth is about 9 feet. The water level of the lake is almost entirely dependent on the amount of snow that Utah receives in the winter. Low winter snowfall will cause low water levels. Due to evaporation and water going into the Jordan River, water levels will almost always be gradually decreasing during the hot months of the year.
*For historic water levels, take a look at the graphs below:
Utah Lake Historic Lake Levels
Monthly Avg. Lake Levels
*The charts above are intended for illustrative purposes only. The data represented is taken from the Utah Division of Water Rights website and uses the daily levels reported to create monthly averages and annual high/lows.
Due to the shallow nature of Utah Lake, boaters should always use caution at Utah Lake. If you plan on launching a boat at a specific marina, it would be wise to contact that marina beforehand and ask them about current water levels. Here is a list of the marinas at Utah Lake. Click on the names to view contact information.