Visit Parks Canada’s Banff Now page to check the current parking capacity of many destinations within Banff National Park http://pc.gc.ca/Banffnow.
 
Parking in Banff
Find a Banff parking map (including RVs), current capacity at Banff parking lots, and traffic cameras with estimated travel times on the Town of Banff’s parking page. 
 
Parking in Lake Louise
See Parks Canada’s map of parking lots in the Lake Louise area.
 
For RVs, roadside parking in Lake Louise is limited. Find RV parking in two locations: behind the Husky gas station in the Village of Lake Louise and the Lake Louise Overflow parking lot (located on Highway 1, 5.5 km east of the exit to Lake Louise).