Metro Detroit weather: Another round of frost advisories in place for Tuesday night Rain chances possible Sunday now look delayed Tags: Trending Warmer Tuesday night will be the coldest night of our forecast with lows in the low-to-mid 30s areawide. Just like the last two nights, the coldest temperatures will be west of US-23 in the West Zone and some inland spots in the North Zone. Temperatures should remain in the mid 30s for the Metro Zone. Then plenty of sunshine gets us to the 60s on Wednesday afternoon. From there we make improvements every day through the weekend, finally reaching above normal by Saturday.