The Great American Solar Eclipse arrives on Monday, August 21, delighting sun-gazers from Oregon to South Carolina with a total solar eclipse. However, to view the full effect of the eclipse, including an amazing view of the corona, you need cloud-free skies. In their latest eclipse forecast, the National Weather Service says the best viewing conditions for totality will be in Oregon,  Idaho, and Tennessee.  Along the totality zone, it appears the weather won’t cooperate over portions of Nebraska, Kansas, Missouri and South Carolina.

The rest of the continental US will enjoy a partial eclipse, but in the areas away from totality, it is important to have as few clouds as possible in the sky. Washington, Texas, Oklahoma, Ohio, Pennsylvania, New Jersey, New York, Connecticut, New Hampshire, Vermont, Maine, Massachusetts, Rhode Island, and Delaware will have the best skies with limited clouds. In the US, there will be at least 70% coverage of the sun by the moon.