Its really hard to say if it will be above 0 (3 ft) next weekend. The river is on the rise from the rains overnight, but who knows how much it goes up. There is also a good chance for storms this weekend so that could help big time.
The river at 3-3.5 ft is fun. Some wave/hole features begin to appear (Little Drop near the end is great at lower levels). A swim at this level is probably more invigorating than terrifying. With lower flows, self rescue is really easy.