It is very difficult to predict the weather in the Everest region. The best idea is to be prepared for every rainy, snowy, sunny or foggy day. The temperature may range from 25 degrees to -20 degrees. It differs from season to season. We can’t predict what the Himalayas have to offer. We may have to postpone our plan because of the weather sometimes. Winter and monsoon may be extremely challenging; thus spring and autumn are the best seasons for this trek.