BOISE, Idaho — The 34th annual Scott Spencer Spirit of Boise Balloon Classic is set to bring nearly 45 hot air balloons to the Treasure Valley skies, but organizers are keeping a close eye on the weather forecast as rain threatens the opening festivities.

With tents already set up behind Ann Morrison Park, the big question remains whether balloons will be able to take flight during the first day of the festival. Rain is expected during the opening period, which could impact traditional activities like tethered flights for children.

Watch to hear from one of the hot air balloon pilots about how weather can impact flights — Spirit of Boise faces soggy start

"Sometimes there's a one hour window where we can get things done. It's always weather dependent," pilot Brian Ashton said. "So I

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