Question

$How much does the sky weigh?$
​

Answer 1

Answer:

The sky is just the weight of many many sextillions and trillions due to water which is present as moisture and liquid.

Answer 2

$That means the sky holds 4,824,146,196 gallons of water. At eight pounds per gallon, that's another 38,593,169,564 pounds of water in the air. Add it all up, and the total weight of our sky is 12,107,415,382,493,169,564 pounds, more than 12 quintillion pounds!$