Don't know what it's like outside? Too lazy to open up the curtains and take a peek? Use your Mac or iOS devices to check and see what the weather is like. Here's a quick look at five free weather apps that let you know whether today's the day to leave the jacket at home.

Weddar
A free weather app that relies on crowd-sourced data to let you know what it's like outside. Lately, this is one of our favorite apps because it really gives you a detailed look at what the weather is like in your particular neighborhood or area.

Weather+ Free
While it's actually the "Lite" version of another Weather application, Weather+ is nice because it gives you current weather conditions and a 5-day forecast worldwide, as well as videos and widgets, all beautifully visualized on your iPad.

Nightstand Central for iPad
It's not actually a weather application, but it'll display the the weather and temperature outside in a widget-like interface. Perfect if you're the type who docks your iOS device by your bed at night.

WunderMap
WunderMap lets you scroll around a fully interactive map to check out temperatures in your region.. And, there are animated clouds, which makes it great for tracking storms (so you can avoid them, of course).

AccuWeather Free
Get detailed current conditions, a 15-day forecast and hourly weather updates with the AccuWeather forecast. Plus, there are weather alarms to warn you of severe weather (because you needed more to be paranoid about in life).