I've flown a Nexstar in 15-20 mph winds, and it was dicey. A good rule of thumb is if the plane flys backwards at full throttle, its probably to windy to fly.

Seriously, flying in the wind is an excellent way of building your skills. As you practice, it gets easier. Much of it depends on whether the winds are down the runway or crosswind. Typical high wing trainers, with the dihedral wing, take a little more effort to land in a cross wind. The upwind wing will tend to get lifted by the cross wind. To counter that, you need to adjust your landing attitude to put that wing down slightly. You also need to learn to use the left stick (throttle and rudder). You also need to learn to look at the flight path of the plane, not the direction the nose is pointing, to set up your landing.

As I tell some of our club members - Embrace the wind! You'll get more flying time.

Brad