iOS: One of the problems with weather apps on the iPhone is that you have to actually open them to get the information you want. Weather Notifications is an app that can send customised notifications to your lock screen with only the information you care about.
At a glance, Weather Notifications isn't that different from the weather information that's already in Notification Center. You can set it up so you get a quick forecast of your day if you want, but what's useful about Weather Notifications is the level of customisation available with alerts.
You can set it up so you get alerts for rain, fog, specific temperatures, humidity or wind. It's an interesting approach to a weather app that's worth a look if you're only curious about specific types of weather.
Weather Notifications ($1.99) [iTunes App Store]