One of the coldest nights of the season occurred early Tuesday with one location free-falling down to 12F.
Clear Lake State Park between Atlanta and Onaway on highway M-33 is where the coldest measured temperature came in with that 12F reading. Roscommon and Indian River were not much better with 14F noted at Roscommon and Indian River coming in with 15F. Several spots dropped to 16F including Rexton, Grayling, and Mio. Wolverine was 17F with Engadine falling to 20F early Tuesday morning. Skies for the most part were clear along with little if any wind last night setting the table for the cold weather.
Changes are looming on the horizon as a storm system over the Desert Southwest will strengthen as it approaches the Western Great Lakes region on Halloween doing two things to our weather. As winds turn southeasterly ahead of that system, temperatures will gradually warm with 50's for many spots Wednesday and a few 60's forecasted on Halloween, However, the warmer temperatures will come at the cost of rain, which will become steady Wednesday night into Halloween Day.
In the short-term, clouds will slowly increase dimming out the sunshine Tuesday with a sprinkle or flurry even possible in Lower Michigan Tuesday evening/night. It will not be nearly as cold as southerly winds and clouds will keep temperatures in the 30's Tuesday night.
While we are talking about rain, we won't see any Wednesday until late. In fact, the sun will attempt to peek through Wednesday before clouds quickly assemble Wednesday night as rain sweeps in. Rain will be steady into Halloween Day with a rumble or two of thunder even possible. There are some signs that the bulk of the rain may be east of us by the Trick-Or-Treating hours Thursday evening which would be welcome news for those heading out I am sure. A few showers will linger into Friday and the start of the weekend with temperatures over the weekend falling back into the 40's.