There are some hills, including serious climbs in the area (you can go up Megantic I think) but overall it's mostly rollers. And definitely no super long climbs.
Weather should be the same as Montreal minus 2 degrees Celcius usually, and the temperatures drop lower in the morning than they would in the city of course.
If you officially want me to look for more details let me know, I'll send you references by private message.
Charlevoix is the artist colony town that I was thinking of. It's on the Route Verte and it's like a northern Santa Fe, a bit, which has its plusses and minuses. I liked it when I was there about 10 or 15 years ago
http://www.routeverte.com/rv/voyager...ode=charlevoix
Charlevoix is actually a whole region.
Saint-Jean-Port-Joli is probably the Santa Fe-like town you're thinking about, tulip.
It's gorgeous, splendid area to cycle in, but now we're talking very serious climbing. Check this out for an idea:
http://www.velo.qc.ca/voyages/index.php?code=Fjord&d=1
I know people who had their front tires explode from the heat generated by too much braking down those hills.I wish I could go cycling there sometime.
For the Eastern Townships, you can check those town names for ideas:
Farnham, Mystic, Stanbridge East, Frelighsburg, Sutton.
Sutton, Glen Sutton, Mansonville, South Bolton, Lac-Brome (Knowlton).
Lac-Brome (Knowlton), Fulford, Bromont, Farnham.
Gorgeous riding. The pavement is not as nice as in Vermont, though, be forewarned.