I'm not sure where you live, but where I live they said it was supposed to rain the last 2 days and we haven't seen a drop! I would honestly just take a deep breath and try to do something you love to calm yourself down. Maybe take your dogs for a walk? If it does rain this weekend, everything will be fine. A little bit of rain never hurt anyone. I understand its more stressful when you are dealing with teenagers and dogs who might not enjoy the rain, but its a part of life that you can't control. I know its easier said than done, but try not to worry about it until it actually comes up. Maybe think about some alternative plans to do with everyone if it does end up raining. That way you are prepared. You can do it!!!