Wait until late summer and it will be better. :-)
Your washer has three settings:
- Hot (only the hot water inlet it open)
- Cold (only the cold water is open)
- Warm (both the cold and hot are fully open)
How warm warm is depends on the temperature of the cold water coming in and the temperature of the hot water in your home.
Normally I would not worry about it. You might want to check the inlet filters to make sure the hot water inlet is not partly clogged, which can happen, but other than that, why worry?