Los Angeles weather is typically mild, so no need to worry about too many instances of inclement weather. With the occasional rainy day, most of your walks will be spent strolling underneath the sun.
North Hills shares borders to the east and west with the 405-San Diego freeway. If you visit the Westridge-Canyonback Wilderness Park, the terrain will be substantially more hilly as it lies in the far in the Santa Monica Mountains. There are trails and green spaces for human and pup, but be sure to mind your surroundings and be aware of any potential hazards such as wildlife and fallen trees. If you keep your strolls along dirt paths, it may be better for your dog on a hot day as the pavement of the city may be too hot for sensitive paw pads.