Packer/Vikings - Weather a factor?

I have Lacy (RB2) and McKinnon (Flex) in my starting lineup. Given the awful weather predicted for Green Bay tonight - 70%-90% chance of precipitation with normal to heavy T-storms throughout the game and well into the early morning hours - better to insert Sproles and F-Jax, who I currently have on my bench?

And just out of curiosity, any idea how the NFL would handle the make up of a cancellation if they can't play tonight b/c of lightening...would they move it to Sunday?

 

Disregard question re cancellation; looked it up in NFL.com/rulebook.

 

Precipitation is usually better for the running backs because the quarterbacks are affected more. I wouldn't worry about that. I might even hope it rains more.

 

I saw a comment on reddit about Rodgers during inclement weather and he seems pretty unaffected. I'm starting him and Nelson without worry. Bridgewater on the other hand. Not enough information is out on how he will fair without rain

 

It looks like there is a good chance that Christian Ponder starts.

 

which I would say makes GB a good defense option. Wet ball and poor qb play to be expected.