FYI: Paris does not have a monopoly on overcast weather. You cannot use the excuse of wanting to be in the US for weather reasons.
Schools, in the US are all over the map, in various types of topography, with diverse weather conditions. The Northwestern part of the US has rain, for the most part, at least, 9 months out of the year.
Southern California has fog and overcast mornings constantly.
The Southwest can have extremely hot and cold temperature.
The Northeast and Midwest has lots of diverse snow and cold weather conditions-black ice, etc.
The Southeast has Tornado watches and flooding.
Transferring to the US, as an international student will be very difficult. Financial aid for transfers is very difficult, but for international students, it is almost impossible (you might get some aid for books).