CHICAGO — Since the early days of summer, runners from across the region, across the country and around the world have been training for the moment they hit the streets of Chicago on October 9th.
While there are many things these athletes can control about their training, there’s one big thing they can’t: the weather.
Temperature has a big impact on runners, with warm or cool temperatures making a difference in time. Precipitation could also make the course a little more challenging for those completing the 26.2 miles on Sunday morning and afternoon.
What is the weather like on Sunday? Rather pleasant at the moment.
According to the WGN weather center, the high for the day is expected to be 65 degrees for a high with a low of 49, with seasonal weather making for good marathon conditions.
Leading up to the race, the Chicago Marathon event alert status is green, which defines ideal conditions for marathon running.
This is a key difference from the 2021 race, where the maximum temperature at the start of the race was 79 degrees with a temp of 68 degrees.
How does this year’s weather compare to the usual race temperature? It’s pretty average according to FindMyMarathon.com.
For the last 17 Chicago Marathons since 2005, the average high temperature for the event is 67 degrees with a low of 51, with an average of 52 degrees early in the race.
The warmest temperatures of this range were at the 2007 race when the starting temperature was 72 degrees with a daily high of 88 degrees. The heat was so great that the race was stopped halfway because of the high temperatures.
Two years later, the coolest race of the last 17 years followed with a temperature of 32 degrees at the start of the race and a maximum of 45 degrees.
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