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The hottest Coeur d’Alene Ironman could happen this weekend

High temperatures in Coeur d’Alene are forecast to be above 100 degrees on Sunday.

COEUR D'ALENE, Idaho — The 2021 Coeur d’Alene Ironman could be the hottest ever run in North Idaho. That includes 2015 when temperatures soared to 99 degrees on the last Sunday in June.

 Heat building across the Inland Northwest will bring the first triple-digit high temperatures of the year. For many, these will be the warmest temperatures seen since the summer of 2015, for some this may be the warmest weather ever recorded. 

The official race start is still a few days away, but upper-atmospheric patterns suggest this heat is a sure thing. The ridge in the jet stream responsible for the 90-degree heat all week will amplify this weekend, setting up a heat dome just in time for the running of the Ironman. Temperatures will be almost 30 degrees above normal.

Credit: KREM 2 News

The normal high temperature on June 27th in Coeur d’Alene is 76 degrees. Temperatures during the Ironman in years past have ranged from 66 degrees in 2013 to as warm as 99 in 2015. Two years have recorded rain. There was a trace of rain in 2014 and 0.04 inches of rain in 2012.

Credit: KREM 2 News

This Sunday’s forecast high temperature of 100 degrees would make this the hottest Ironman ever run in Coeur d’Alene. While this could break the record for the hottest Coeur d’Alene Ironman it still isn’t as hot as some of the races around the world where temperatures have been recorded soaring well into the triple digits.