1995 Acura Legend TEMP GAUGE RISING

Engine problem
1995 Acura Legend V6 Two Wheel Drive 123000 miles

I have a 1995 Acura Legend w/ 123k miles on it. The car runs like a champ but the temp gauge rises like the car should be running hot, but the car doesn't run hot. If Im riding at a cruising speed of 50mph or above, the problem won't exist. The fans seems to come on when they are suppose to. I have noticed that my heat will not get warm until my temp gauge reaches its highest peek and desend back to its normal running temp position. If im riding in town or if im stuck in traffic that temp gauge really starts to scare me. Can you please help?