Typical Run Score
79
Good
Chicago · October
Running in Chicago in October
Typical October running conditions in Chicago, and a live Run Score so you can see how today compares with the norm.
Avg temperature
55°F
Ideal
Avg dew point
44°F
Comfortable
Best window
6 AM–12 PM
Local time
Chicago · today vs the October normTemperature · dew point · wind · timing
How October compares in Chicago
October ranks 2nd of 12 months for running in Chicago, with a typical daytime Run Score of 79 (Good). For reference, the best month is May (score 81) and the hardest is January (score 61). The kindest window in October is typically 6 AM–12 PM. Precipitation falls in roughly 15% of hours this month. Use the live tool below to see how today actually compares with the October norm.
Running weather in nearby cities
Same engine, different climate. Check the best time to run in these cities too.
Running in Chicago in October: FAQ
Is it good to run in Chicago in October?
Generally yes, with sensible timing. The typical daytime Run Score is 79 (Good), with temperatures around 55°F (13°C) and comfortable dew points. The best window is usually 6 AM–12 PM.
How hot is it for running in Chicago in October?
Typical temperatures average 55°F (13°C) (Ideal) with dew points near 44°F. Dew point (not the thermometer) usually decides how hard the run feels.
What is a good Run Score?
Scores run 0–100. 80–100 is Great (97+ earns a gold star for near-perfect conditions). 65–79 (Good) is solid. 45–64 (Fair) means at least one factor (usually heat or dew point) is slowing you. Below 45 (Poor), expect a noticeably harder effort or hold back for safety.
Why does dew point matter more than temperature?
Your body cools by evaporating sweat. When the dew point climbs above roughly 60°F, the air is too saturated for sweat to evaporate efficiently, so heat builds up even if the thermometer looks reasonable. That's why a 70°F muggy morning can feel harder than a dry 80°F afternoon.
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