As of right now, the weather in Indianapolis looks very nice tomorrow for game time. It will be close to 80 degrees and partly cloudy. I would expect the roof and the window to be open in Lucas Oil Stadium, although an official decision has yet to be made.
Whenever the weather is nice enough to have the roof open, it is a pleasant experience. The Colts rarely play in warm enough weather to take advantage of the retractable roof, but tomorrow should be one of those days.
This will also be the best weather the Colts have played in since week 1 when they played at home against the Bengals.