Walking in the Cradle Mountain in heavy weather

The area around the mountain has a large number of day walks, as well as being one terminus of the Overland Track. The mountain is frequently climbed by tourists, virtually year round. It is a strenuous (recommended allotted time: 6.5 hours) return hike from the Dove Lake car park.
We just walked for maybe three hours before the weather got dark and rainy more and more. Our program to have a sightseeing flight over the mountain we gave up due no improvement in the weather was to expect the next few days.