Post Views: 179 Pretty good chance of clouds blocking the Eclipse based on the forecast. Beaches Forecast for Monday August 21st — Variable clouds with scattered showers and thunderstorms, mainly in the afternoon Highs in the lower 90s. East winds up to 5 mph shifting to the southeast in the afternoon. Chance of precipitation 40 percent. Courtesy AccuWeather Clouds may block the Eclipse Monday 30a Television | 30a | August 20, 2017 3:48 pm