Intel Fortran is now available under a free, non-commercial license for qualified students on Linux, OS X and WIndows. See https://software.intel.com/en-us/qualify-for-free-software/student for more details.
Note: If you don't already have a supported Microsoft Visuall Studio installed, you'll need to get one first as the student license doesn't include the VS Shell-based IDE. The free Visual Studio 2013 Community Edition will do.