We lost a very valuable contemporary art museum when the Claremont Museum closed its doors. However a great alternative if you're looking to stretch your artistic interest is the Wignall Museum located on the Chaffey University Campus.
I was chastised by a reader some time ago for mixing up the terms "modern" and "contemporary." So let me explain that "modern" art resides in the time period of the 1860's through the 1970's, and "contemporary" is art produced by living artists today.
The Wignall Museum is opening a new exhibition on Monday January 24th which will run through March. It's a small but very interesting place to visit. For all the information click on this link http://www.chaffey.edu/wignall/exhibitions.shtml