How cold is to cold to go Geocaching? I am suppose to cache hunting Saturday with a friend but the temp is suppose to be a high, yes a high of 15 and the wind chill is suppose to be -1. I'm sorry but I think we will have to cancel the hunt. I value my toes and fingers. Besides, Nascar season has started and it would be much more fun to watch the Busch race instead of freezing the fornorkle off.