Day 4 started off so sunny and beautiful! We had looked at vedur.is to check the weather the night before and we thought it showed we would be in purple wind (very strong wind!) overnight and this morning, but woke up to no wind at all. Prior to the trip everyone suggested using Vedur to check the wind, but we found it wasn't very good or easy to figure out exactly where we were and if the wind would be too strong for us to drive (we often couldn't tell if we would be in the windy area or just outside of it). We started checking https://vegasja.vegagerdin.is/ every time before we drove as that was much easier to use, much easier to find exactly where we were and more accurate for us.