Sonos doesn’t make a powered speaker that can remain outdoors permanently. But you could get the Sonos Move and take it outdoors when you need it, or get a set of Sonos Architectural by Sonance outdoor speakers, or other third-party outdoor passive speakers, and power them with a Sonos Amp.

See link below. These are probably your best bet, where you can either place the wired, or wireless, Amp indoors, or in a weatherproof enclosure, and cable it to the outdoor speakers supplied. The Amp also has a line-in to which you can attach a bluetooth receiver to play the Bluetooth audio sources.

https://www.sonos.com/en-us/shop/amp-and-outdoor-set.html