Only if you plan on putting them outside permanently. You could bring them out for a few hours to acclimate to sunlight before you leave them out. I think just bringing them out occasionally won't do much if anything good.
The daytime temperature in my city will reach a temperature above 70. If I put them outside during the day and take them back into the house at night. Will this increase yield?
Depends Mate on what temps are (90sF most def or at least shade) and how old the gal's are. Could we get a screen shot of your weather for this week???