This is a picture of a thermometer and you can see the mercury in it. it has lines for telling the temperature, and to the right hand side of it are three drops of dew or water.
This is a Dew Point icon. We've made it in iOS style
, first introduced in iOS version 7 and supported in all later releases up until now (at least iOS 11). This style is based on thin two-pixel lines and is optimized for 50x50 px. Unlike other vector icon packs that have merely hundreds of icons, this icon pack contains 13,100 icons, all in the same style and quality.