Parts of Metro Detroit wake up to frosty morning

Mark Hicks
The Detroit News

Parts of southeast Michigan saw a frost Thursday night into Friday when temperatures dropped to 32 degrees in some areas.

According to the National Weather Service, rural communities north and west of Detroit were the coldest.

Areas closer to Detroit didn't see a frost and temperatures were around 39 degrees.

The National Weather Service had forecast a frost Friday night for much of southeast Michigan.

But this weekend temperatures are back on the rise — nearly 10 degrees above average.

The frost shouldn’t come as a surprise. “Usually we get our first freeze at some point this month,” said Mike Richter, a meteorologist at the National Weather Service station in White Lake Township. “We’re probably a little behind.”

The average first date for a freeze — 32 degrees — generally occurs Oct. 11-20 in Metro Detroit, according to NWS data. The average first hard/killing freeze — 28 degrees — typically arrives around Oct. 21-31 or later, the weather service found.

The lowest reading so far this month at Detroit Metro Airport was 39 on Tuesday morning, NWS records show.

“October is the month that the growing season ends across southeast Michigan,” weather service experts said.

After flirting with frost early Friday, the region should see mostly sunny skies and a high in the low 60s. The overnight low could dip into the mid-40s, which is about average for this time of year.

But that changes for the weekend.

Temperatures are forecast to rise into the low 70s Saturday and Sunday, which could bring a slight chance of thunderstorms Saturday night into Sunday, according to the weather service.

The warm spell is expected to linger through Tuesday, with lows looking more like average highs: dipping only into the upper 50s.

The shift is not unusual at this point in the season, Richter said. “It’s just a pattern we’re in. The track of the low to our west and northwest of us is just going to keep us on the warm side. Sometime around Thursday, it’ll get back to normal.”

Staff Writer Nicquel Terry contributed