As Rodney mentioned, there are rainbow trout but fishing in that area has been slow this year. Best bet for a day trip is to Gold Pan Provincial Park which is a reasonable day driving distance and has good access to the river. I find that on the Thompson, first light and about 2 hours after is prime. After the heat of the day has past, evening fishing on that portion of the river can also be good.
For gear, I find a small lure or a fly works good. Some of my best results have been with the old Doc Spratley design or close iterations of that fly in red. Also the regs for the Thompson are: Only allowed to retain trout with a minimum length of 35 cm and only 1 over 50 cm. The daily retention quota is 2. Barbless hooks only allowed. Check the official regs for more info.