There is early voting at Kingwood Branch Library from October 18 - Oct 29. The schedule is:
Mon. - Fri. 10/18 - 10/22 from 8 am to 4:30 pm
Sat. 10/23 from 7 am to 7 pm
Sun. 10/24 from 1 pm to 6 pm
Mon. - Fri. 10/25 - 10/29 from 7 am to 7 pm
For more election information go to www.harrisvotes.org  the Harris County Clerk's office or www.lwvhouston.org  the League of Women Voters of the Houston Area. There is an online copy of the Voters Guide  on the LWV site. Both sites have a lot of voting information.