Zara has a great selection of spring raincoats including the one above which has a trench-like look to it, minus the belt. It's modern v-shaped style is paired with button detailing and epaulets for a streamlined look.
This lightweight cotton coat from Banana Republic is great for those unexpected cool spring/summer days. Cotton seems like a hot and heavy fabric, however, with its lightweight version in this style makes it a "cool" cover up. The linen color is perfect for the hotter seasons.
A trench is always great to have on hand, even in the warmer months. J. Crew's Sutherland trench hits mid-thigh and has a more casual, belt-less look. This is a great piece to throw on when there is a mid-day shower, a cool spring breeze or even for your traditional "trench" needs!