You can find national weather service weather icons in countless websites. These icons can be downloaded from either free websites or websites that sell icons for nominal charge. In either way you have to be careful about the virus and spy ware spread. It is because all the free websites are good websites. You can also download national weather service weather icons from the sites that sell icons, images, logos etc But either way you have to be careful about the spy ware spread and virus attack. They can travel along with the national weather service weather icons download or any other downloads .The spy ware is capable of spreading across the files and folders and enables the opponents to monitor the data by scanning them. Similarly the viruses can also cause damage to the whole or parts of the system.