BerryWeather for UI.
Their weather feeds seem to be a little more erratic than others. If you live in a big city, it should be ok, but if you live in a smaller city you should test it out first. Turns out BerryWeather is 10 degrees off on average for me, so now I use WeatherBug and it works. Miss the UI but liking the consistent results.
Posted from my CrackBerry at wapforums.crackberry.com
I love WeatherBug, its free and you can choose from many local neighborhood weather locations to get a better idea of the weather, as opposed to just choosing what the weather conditions and forecast is at the local airport.
I like weatherbug, it's free, works with .230, and you can put it in a theme with a weather slot and it give current temp along with hi and lo. it has some customization to it also.
Weather Bug Elite it works great, cheaper than many paid apps and customer support is excellent. And its very accurate and allows you to pick which weather station you want to receive your updates from, if there's any in the area your looking for.