Still haven't seen the airlock move, though it hasn't been 24 hours yet. It's sitting in a Rubbermaid of water up to about the 3 gallon mark, no ice added, and I'd say the temp is about 62F. (Fishtank thermometer only goes down to 64.) I pitched the yeast (Muntons Gold dry yeast, one packet) at about 69F, so I know they're not scalded.
Should I take some water out of the Rubbermaid bin so the temperature can come up closer to the ~67F room temp, or just not worry about it and accept that everything will happen a little slower due to lower temperatures?