Feel those nice breezes and temps in the 70s today? Enjoy it, because it’s not going to last this week. An incoming heat dome is going to crank up those numbers.
Today will be great. Yesterday’s storms are in the rear view mirror. Clouds will thin out and leave us with sunny skies. Monday and Tuesday will feel a little hotter each day, but still give us sunshine and low to mid 80s for high temps.
Then the heat will start to ramp up on Wednesday.
By Thursday, the “feels like” high temperature will be hitting 100 degrees, the National Weather Service said.
Here’s the combined week-ahead outlook from the NWS forecast offices across Michigan:
We should prepare for a significant heat wave developing midweek, with temperatures expected to climb into the 90s and potentially approach 100 degrees by Wednesday and Thursday.
A gradual warming trend will begin Sunday, with temperatures initially in the upper 70s to low 80s. By Wednesday, a strong upper-level ridge will push temperatures into the low to mid-90s across most of the state. Humidity will increase substantially, with heat index values potentially reaching or exceeding 100 degrees on Thursday.
The northern part of Michigan will see patchy fog Sunday morning, with skies clearing to mostly sunny conditions by afternoon. Northwest winds will be breezy, with temperatures reaching the mid to high 70s. Overnight temperatures could drop into the high 40s in some interior locations, particularly in the eastern Upper Peninsula.
The heat and humidity will persist through Thursday. By Friday, a shortwave weather system may trigger widespread showers and thunderstorms, providing some relief from the intense heat.
Long-term forecast models suggest the heat dome will begin shifting eastward by the weekend, potentially bringing temperatures back to the mid to upper 80s. There remains some uncertainty about the exact timing and intensity of potential weekend precipitation.
Generative AI was used to produce an initial draft of this story based on data from the National Weather Service. It was reviewed, edited and expanded by MLive staff.
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