This is something my physiatrist and cognitive therapist have both said is very common among their TBI patients. Unfortunately neither can provide relief.

I have found that accuweather.com is a great resource. You put in your local area and there is a place where you can put in different types of forecasts, for example: allergies, aches & pains, etc. There is a migraine tab you can add. For me it's accurate a little over half the time, but I think everyone's response to pressure changes is different. However, I now know when the weather is going to change with a front coming through, I should plan a lighter day just in case, that way if I get a migraine, it doesn't ruin my whole day as I've already planned on it.

Not sure if that helps any.... but it helps me schedule better.