Detroit, MI weather
Right now 43°, clear · tonight 42°, sunny · seven days from the National Weather Service
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Right now · 43° · clear · calm · 9° cooler than this time yesterday · at Coleman A Young, 5:55 AM
Today, in the Weather Service’s words
Mostly clear. Low around 42, with temperatures rising to around 44 overnight. North northeast wind around 2 mph.
Seven days
Winter in Detroit
Detroit averages 31 inches of snow a year, according to NOAA’s 1991-2020 climate normals - a moderate snow place. A handful of accumulating storms a year. Districts close for the larger ones.
That is why local snowfall thresholds differ so much from one town to the next: a district that plans for 31 inches a year is equipped differently from one that never sees any. Here, roughly 4 inches in a single storm is where a normal school day comes under threat.
Upper air over Detroit
The nearest radiosonde launch is Detroit, about 33 miles away. A weather balloon goes up twice a day and measures temperature, humidity and wind all the way through the atmosphere - which is what forecasters actually read to judge whether storms will fire, and how a surface forecast was arrived at.
Sources: National Weather Service forecast and hourly grid for Detroit (api.weather.gov), updated Tue, 1:35 AM UTC. Sunrise and sunset from NOAA’s solar position calculations. Snowfall normals from NOAA’s 1991-2020 US Climate Normals. County lines from the US Census Bureau.