Blue Water Festival-goers festivities will face the chance of rain amid the activities in Port Huron and nearby waters. St. Clair County, Michigan, is under a Marginal (1/5) risk for severe weather both Friday and Saturday.

A thunderstorm system moving into the west side of the state Friday morning could trigger storms in Southeast Michigan later in the day. 

On Friday afternoon and evening, attendees should be prepared for possible heavy rain and gusty winds. 

When the boats pull out around on Saturday morning for the 101st Bayview Mackinac Race, conditions should be mostly dry in Port Huron. 

Saturday storms are expected to arrive later in the day.