| Source | NBC Local |
|---|---|
| Original Load Date | Oct. 7, 2026, 7:01 a.m. |
| Last Updated | Oct. 7, 2026, 7:01 a.m. |
| Original URL | https://www.nbcchicago.com/weather/chicago-weather-forecast-80-degrees-chicago-marathon-weather-rain-tropical-storm-isaias/3998985/ |
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A cold front with a 10-degree temperature swing is in the Chicago forecast this
week, with unseasonably warm temperatures expected heading into the [ 2026 Bank
of America Chicago Marathon Sunday ][1] .
Runners could also wind up racing in the rain thanks to remnants of a newly
formed tropical storm...