I always look at it. Its just another things where "if it all lines up" you will consistently have good fishing days.
Youll notice just around the house on somedays you hear birds chirping away and flying around, and other days nothing. On those days when the birds are active - the fish are active too.
I look at at overall weather (i find it does have some effect on the "mood" of the day, back to the bird chirping thing, atmospheric pressure is huge, the higher the better, and the lunar tables.
high/raising atmospheric pressure coupled with good lunar tables are almost always good days fishing, and vice versa.
I dont find it to be as influential on offshore fishing, but i still notice differences. Offshore is more of a bait and current fishery, but again the better the day, the more the bait and salmon and hali are out hunting and looking around