Do you need a weather forecast if there's only one kind of weather?

People make fun of the weather in Scotland all the time, and I'm just as guilty of it as everyone else. But as always, there's a bit (or in this case, a lot) of truth to most humor.

I finally received my snazzy taped-seams-waterproof-but-breathable-outdoor-adventure rain coat in the mail the other day. I think this may be the most important piece of equipment I may buy for this research. I hate getting wet. Don't ask me why I'm going to Scotland then.

Coat in hand, I decided I'd check out the forecast for the Isle of Lewis for the next 10 days. Here it is:

WedAug 25
Showers
64°/54°

ThuAug 26
PM Showers
63°/54°

FriAug 27
Light Rain / Wind
63°/53°

SatAug 28
Showers
62°/53°

SunAug 29
Showers
63°/53°

MonAug 30
Light Rain
64°/53°

TueAug 31
Showers
65°/53°

WedSep 01
Showers / Wind
63°/52°

What common theme do we see emerging here, kids?!

Which leads me to the question...do you need a forecast if there's only one kind of weather?