There are watch faces with weather add-on feature that allows you to see the current weather, but if you are looking for a dedicated app for weather well here is one of the best weather app for Android Wear, Aeris Wear, a weather app with a radar feature.
See the hourly status of weather, get notified when there is a weather advisories as well as alerts, so far it has a simple graphics, but enough to tell you the latest weather report. You can also have customizable cards. Whether it's regional or a local weather updates see satellite/radar data, current conditions, forecast information right on your Android Wear watch.
Name: Aeris Wear Weather
Developer:HAMWeather
Category: Weather
Description:
Aeris Wear brings weather and radar to your wrist. Key features include: severe weather notifications, local and regional satellite/radar data, current conditions, forecast information, and customizable cards.
