Seal it up in big Ziploc bag, put it in a cool spot, it'll be OK. My son was caught with a batch of milled grain between moves, and it was six months before he could use it. He made beer with it eventually, and it was just fine.
“Malt does more than Milton can / To justify God’s ways to man”
-A. E. Housman (1859–1936). A Shropshire Lad , 1896.