Ryan Lochte was sweatin' it out at his wedding over the weekend ... but it was probably more because of the 108 degree weather than nerves.
The 6-time Olympic gold medalist and ex-Playboy Playmate Kayla Rae Reid exchanged "I Dos" in Palm Springs on Sunday in front of 100 of their closest friends.
Lochte sported a tan suit and a bunch of sweat ... while Reid didn't let the heat keep her from looking incredible.
We broke the story -- Lochte and Reid got hitched back in January after announcing their engagement in October 2016.
The couple welcomed their son, Caiden, back in June 2017 ... who served as a ring bearer for the ceremony.
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