Chicago Marathon
Oct 10, 2027 · Chicago, IL
330 days
Early October in Chicago · during the race
Typically46–60°F
Can swing 39–70°F · middle 55° · last 26 races
At the 7:30 AM start
42–57°
By 11:30 AM
54–67°
1 of 26
years with rain
8mph
wind
68%
humidity
+4 min on a 4:00 finish in a typical year, mostly heat
2000–2026 · forecast Sep 26More on racecast.io →
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