To enhance the visualizations in your scenes, you can add weather effects, such as snow, rain, or fog, using the Weather tool in Daylight / Weather 
. The weather settings are stored in slides so you can share with others.
Sun
Click the Sunny button 
to set the weather to sunny in your scene. You can use the Cloud cover slider to change the density of the thin layer of clouds.
Clouds
Click the Cloudy button 
to add clouds in your scene. You can use the Cloud cover slider to adjust the cloudiness.
Rain
Click the Rainy button 
to place rain in your scene.
- Use the Cloud cover slider to adjust the cloudiness.
- Use the Precipitation slider to change the amount of rainfall.
Snow
Click the Snowy button 
to make it snow in your scene.
- Use the Cloud cover slider to adjust the cloudiness.
- Use the Precipitation slider to change the amount of snowfall.
- Check the Snow cover checkbox to add a layer of snow to the surfaces in the scene. The snow layer doesn't display on basemaps or draped layers.
Fog
Click the Foggy button 
to add fog in your scene. You can use the Fog density slider to adjust the fogginess.