If you are looking for a nice weather app for Windows Phone 7, then you can try out Weather4Me developed by XDA developers forum. It takes information from AccuWeather and is optimized for high traffic usage. A single weather query takes near 15K data and because of that, the app is very fast and responsive.

Features;

• Detailed actual weather conditions for particular selected city
• Today weather information
• Up to 5 days forecast information
• English or metric units support and automatic selection for weather data representation
• Data refreshing on the application startup and manual data refreshing
• Fast search city by name (partial name) or US zip code
• Ability to add city to the favorites and fast switching between them

Download Weather4Me