It’s the week before what many people feel is the first summer holiday weekend of the year and the weather in Washington will feel like a yo-yo. Monday will have plenty of sunshine thanks to high ...

Saturday comes with a steady increase in clouds and a chance for some scattered storms after sunset and into the overnight hours. Rain chances will peak at barely 30% from 9 p.m. Saturday until 7 a.m.

4 things to know about the weather: Decreasing clouds through midday. One more day with mild temperatures. Heat & humidity returns Sunday. A few isolated PM storms Sunday afternoon. The phenomenal ...

SEATTLE — You've probably heard the saying, "the flap of a butterfly's wings in Brazil can set off a tornado in Texas." The butterfly effect is a phenomenon in fluid dynamics, relevant in weather too ...