Brighter colors on satellite are not for Easter. That's moisture that will trigger thunderstorms today...some of which may be severe. That system will head east to affect the East Coast Friday and Saturday.
Above...area that is expected to have severe weather today. Yellow and brown tells us where the best chances are...which is southern Illinois & southern Missouri.
Map above shows the cold front moving through the Ohio Valley with lots of weather turbulent weather ahead of it. Cooler drier air Plains and Rockies.
These are expected afternoon temperatures for Easter Sunday. Most of the Nation.../mild to warm with the exception of the Northern border states. Best chance of wet weather...lower Mississippi Valley and Pacific Northwest.