A new version of AccuWeather is rolling out, and it brings with it full Android Wear support. I say "full" because this isn't just a slightly more informative card that pops up on the watch, but an app that you can open to get weather information.
AccuWeather can be opened by voice or from the app list on Android Wear. The interface is a series of screens you can swipe through left to right. There's current conditions, precipitation, forecast, and alerts. This is a step in the right direction, but it would be nice to see more forecast options and maybe weather radar.
Both the free and paid versions of AccuWeather are updated, the only difference being the ads in the free app on the phone side. The Android Wear integration should be the same.