temp gauge overheat

so i recently went downtown chicago the other night and the traffic was horrible (go figure) and sitting in traffic i noticed my temp gauge sky rocketed. i had the stock fan in as well and i know that doest work well with a modified motor. i want to know the best way to make the temp stay down...

Ok i been noticing sometimes in the morning after i let my car warm up for about 5-7mins, i go down the street an my temp gauge rises all the way to the top line before the red but then it goes back to 190. Im just wondering because if the engine is getting that hot even though its goes back to...