Big Irish Channel Parade and Metairie Road Parade this weekend. Rain chances are going up, but it's all about the timing. Right now it's looking like a 40% rain chance Saturday afternoon, with rain likely overnight Saturday into Sunday morning. The rain is forecast to end in time for the Metairie Road parade. Mild Temperatures Saturday with highs in the low 70s, but Sunday will be cooler and breezy. A strong cold front moves through Tuesday with much colder weather.