Umbrella is a nice little app written for the iPhone that tells you simply whether you should bring your umbrella or not when leaving the house. It takes advantage of the iPhone’s push notifications service to display a message at a time specified by you.

You set your location and tell the app at what time you want to get the push message. You can also tell it when you want to be notified in terms of rain probability. For example, I have mine set to only notify me if the probability of rain is 35% or above.

It’s definitely a nifty little app and I have certainly found good use in it. I recommend it.