Metro Detroit weather: Frosty Sunday morning, rain arriving in the afternoon

Highs in the middle 50s

Sunday, Oct. 24, 2021 weather forecast

DETROITFrost advisory in effect for Detroit and all of southeast Michigan until 9 a.m. Sunday.

A Lakeshore Flood Advisory is in effect for Sanilac and St. Clair Counties from Monday morning to Tuesday morning.

Welcome to Sunday, Motown.

We are off to a frosty start on a brand new day and week. Many neighborhoods are experiencing the lowest temperatures of the season so far.

This morning will be cold, frosty and dry. This afternoon will be chilly, cloudy and wetter. Steadier, heavier rain arrives this evening, tonight and tomorrow. Many of us may face flooding conditions by the end of tomorrow.

Sunday morning will include the coldest air we’ve seen this fall. Many communities are seeing temperatures start in the 30s for the first time.

Skies will be mostly sunny to partly cloudy with a beautiful sunrise and bright conditions during breakfast time. Anyone going to services will need to bundle up before departing.

Clouds roll in from the south by lunchtime and Sunday afternoon. We will gradually see weather conditions especially after 1 p.m.. Scattered rain showers will move in from the south. Then Detroit, Ann Arbor and areas farther north will see scattered rain as well. Despite increasing clouds, highs will be in the middle 50s.

Sunset is at 6:37 p.m.

Sunday evening will be wetter and chillier. Temperatures fall to 50°F and the upper 40s.

Persistent, widespread rain falls Sunday night. Rain will be heavier at times, especially after midnight and toward Monday morning. Overnight lows will be in the low 40s.

Up to an inch of rain will fall as students arrive at school Monday morning. More widespread steady showers for the most of Monday. Afternoon temperatures will be near 55°F.

If you experienced flooding during our past big rain events, you may have them again. By Monday night 1 to over 2 inches of rain will have fallen.

Prepare now by moving items from basement floors to higher shelves or higher floors. Secure any valuables or appliances, as well. If you have time to walk around your block, remove any debris or leaves from gutters and storm drains to allow proper drainage. Also, check on any neighbors who may need help preparing, especially if they are victims of past flooding.

Tuesday and Wednesday will be sunnier. Daytime temperatures will be in the middle 50s

Daytime temperatures will be in the low 50s on Tuesday and in the upper 50s to 60°F on Wednesday. Skies will be mostly to partly sunny each day.

More rain showers are possible Thursday and Friday. Highs will be in the low to middle 50s.

Remember to download the FREE Local4Casters weather app -- it’s easily one of the best in the nation. Just search your app store under WDIV and it’s right there available for both iPhones and Androids! Or click the appropriate link below.

About the Author:

Andrew Humphrey is an Emmy Award winning meteorologist, and also an AMS Certified Broadcast Meteorologist (CBM). He has a BSE in Meteorology from the University of Michigan and an MS in Meteorology from the Massachusetts Institute of Technology, where he wrote his thesis on "The Behavior of the Total Mass of the Atmosphere."