Can you put in a new lawn at this time in NE Wisconsin?
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"From August 15th until September 20th is the best time to establish a lawn in Wisconsin either from seed or sod." No time to waste!!! https://www.wisconline.com/almanac/gardening/ ; Good luck!
http://www.plantinggrassseedcenter.com/planting-grass-seed-in-wisconsin/
But test your soil with your local agricultural agency 1st to see what additives it needs to grow your seed or sod, so your money isn't wasted.