¿Paraguas o Sombrilla?

When you want to know what you need to wear, you must know how to say:
-Temperatures
-Precipitation
-Cloud cover

To ask what weather it is outside, you say "¿Qué tiempo hace?"
To give the exact temperature, you say "Está a ... grados".
These flash cards can help:

Here is a video of someone trying to figure out what to wear outside:

¿Paraguas o Sombrilla? from Wilson Biggs on Vimeo.