There are times when, no matter what you do, the trout just seem to have lockjaw. Regardless of your techniques the fish simply won't cooperate. This is especially true if the water temperatures warm excessively towards the latter part of spring. Even under these circumstances, fish can be caught, but again, you must change tactics. Fishing only in the early morning or late evening, and into the night is sometimes the answer.
Night fishing is permitted in most western states, and at times can save the day, so to speak.
The metabolism of trout rises as the water temperatures rise. Even though daytime fishing may be slow, the trout are eating more, they are just doing it at a different time. Fishing an oversized leech pattern in the shallows on a floating line is usually all it takes to make a believer out of you. Night fishing often produces some hot and heavy action. Of course, night fishing is not for everyone, and there are certain safety issues that need to be considered.