In two days, the Cascade Mountains, east of the big cities, received up to 10 inches of rain, Bower said. Lowland regions received between 2 to 6 inches. On Tuesday, Seattle broke its daily temperature record at 1 a.m. — at a balmy 59 degrees Fahrenheit. Portland broke its daily record, hitting 64 degrees. A weather service balloon released on the Washington coast Monday measured the most potential precipitation in the atmosphere that had been recorded since 1948.