WALTHAM — The forecast calls for a 100 percent chance of swirling trade rumors, with an unknown mix of falsity and fact. That’s about all NBA fans can truly expect with the Feb. 21 trade deadline approaching.

In the meantime, the Celtics on Tuesday shot down one rumor that has been denied elsewhere, namely that the Clippers were interested in Kevin Garnett in a deal for Caron Butler and Eric Bledsoe.