There's a couple of issues here. The first being the issue of "wind blast," e.g., being able to hold your line ina strong crosswind or a blast of air from a large vehicle like a truck or bus passing you. The secret here is to keep a good grip (and both hands) on the bars to keep the bike tracking along your desired line. The bike will want to "weathervane" downwind, so a slight lean into the wind will help counteract that.

The second is power to the pedals... Wind resistance from a head or cross wind is going to cause you to burn more energy. Drafting usually isn't an option for a commuter, so think of it like a climb... gear down to an easy gear and spin.

You'll also feel colder from the wind chill... so a good windproof outer layer and gloves are going to help. In a pinch, you can put a couple sheets of newspaper inside your jacket or jersey for extra insulation.