It should be less of an issue in a drizzle or light snow, but I would be much more careful in a very wet driving snowstorm. The greatest risk however is from a medium to heavy rain. The t2i does not have a lot of weather sealing and in addition I'm guessing you may not be using a Canon L or other weather sealed lens. Try to keep the camera and lens covered when you are not shooting. There is no guaranty, even in light rain or snow conditions, that moisture won't get into the camera's switches or lens mount and cause problems.
It should be less of an issue in a drizzle or ligh... (show quote)
Right as rain on the lenses - basic set of three lenses. As several people suggested, unless I want to invest in another camera (I don't) rain covers of some kind are in order. My bad-weather excursions will be few and short, but better safe than sorry. Rain covers are cheaper than new cameras.
Thanks everyone for their suggestions. Getting a second camera is not an option. Looks like a rain cover or sleeve will be my next purchase since I want this camera to last. I'll check out B&H. I lucked out yesterday since skies cleared before I stepped outside.