Marathoning in Chicago this Weekend? Here's Your Forecast.

news image
Special Stories
5 Oct 2018 9:14 AM
The Bank of America Chicago Marathon takes place this weekend in the city of Chicago and, with thousands headed to the third largest city in the nation to compete and participate in the festivities, I am sure many want to know what the forecast holds for the big race weekend. I am sure this is especially true considering that it's been so rainy this morning in Chicago while many runner are doing their final preps for the race. Well, its not looking to good for the runners in the Windy City, as severe weather and excessive rain is in the forecast for today, with heavy rain lingering in the forecast over the next few days. Temperatures over the next few days will also be very depend on whether its raining. With no rain, you can expect conditions to be warmer. With rain, its will likely be cooler across Chicago and the region. Saturday looks to be a drier day, which will allow for more sun and temperatures in the low 70s. Officially on race day Sunday, temperatures will be in the near 60 around the beginning of the day with temperatures peak in the upper 60s by afternoon. More rain and isolated thunderstorms are in the forecast. All the best to the runners reaching and exceeding their wildest dreams this weekend. For WeatherNation, I am Meteorologist Marcus Walter.  
All Weather News
More
Rachel Spreading Moisture into the Southwest

Rachel Spreading Moisture into the Southwest

Rachel came ashore in far northwestern Mexico

11 Oct 2026 9:00 PM
Hot Weather Baking the Heartland This Week

Hot Weather Baking the Heartland This Week

The Twin Cities saw an afternoon high soar to

11 Oct 2026 9:00 PM
Isaias Makes Landfall as A Category 2, Impacts Spreading North

Isaias Makes Landfall as A Category 2, Impacts Spreading North

Hurricane Isaias made landfall near Destin, F

11 Oct 2026 8:50 PM
Digging Trough Brings Wind and Snow to the Northern Rockies This Weekend

Digging Trough Brings Wind and Snow to the Northern Rockies This Weekend

A strong upper-level trough digging south fro

11 Oct 2026 8:45 PM
Tropics: Another Blob in the Atlantic, Pacific Stays Hyperactive

Tropics: Another Blob in the Atlantic, Pacific Stays Hyperactive

Isaias ended the late season streak of no hur

11 Oct 2026 9:00 AM
Flooding, Tornadoes Target Central Florida Thursday

Flooding, Tornadoes Target Central Florida Thursday

Deep tropical moisture streaming north from t

8 Oct 2026 1:00 PM
Fall Chill Grips the East While Record Heat Bakes the West

Fall Chill Grips the East While Record Heat Bakes the West

A major temperature divide is unfolding acros

7 Oct 2026 10:00 AM