I used to sell Molex and when I toured the factory, I asked for a few samples of their "Perma-Seal" connectors. It's essentially a connector insulated with heat-shrink tubing. Not sure if you want to go through the trouble of ordering it from Mouser (my recommendation) or Newark but if you have the need for a solid connector, look no further.
Perma-Seal
If you're really OCD on weather-proof connectors, check out this link:
Delphi Connection Systems e-Catalog Landing Page