Looks like 5w-20, 5w-30, and 10w-30 are all recommended for well above your expected summer temperatures, so I would focus on the expected winter temperatures. If you expect temps below 0*F, I wouldn't bother with running 10w-30 to make your life easier.
If you ever need to stop in and grab an extra quart of oil somewhere, you're more likely to find a 5w-20 or 5w-30.
Since your 2.0 engine does not require any special manufacturer certs outside of the latest API/ILSAC approved oils, I would just run your favorite brand of Dexos1 Gen2 approved 5w-30, unless you are more interested in saving maybe 0.5mpg with a 5w-20.
For anyone that can't decide between a 5w-20 and 5w-30, I suggest 5w-30 Pennzoil Platinum. It's on the thinner end of the 5w-30 grade and has great base stocks.