While St. Patrick's Day isn't until Monday, Chicago's iconic tradition dyeing the river green is happening Saturday. Here is how to watch the event.

The Chicago River was running bright green on Saturday, as it does every St. Patrick's Day weekend. Thankfully, the high winds in the forecast died down as the dye went into the water ahead of the St.

Colouring the Chicago River ahead of St. Patrick's Day celebrations has been a tradition of 63 years now. The dyeing immediately precedes the annual downtown St. Patrick's Day parade. The dye is nontoxic. While the river stays bright for several hours, some trace of color can remain for days.