Preheat oven to 350 degrees F (175 degrees C). Grease a 9x13 inch baking dish.
Combine the potatoes, potato soup, celery soup, sour cream, milk, onion, salt, pepper and dill weed. Stir until well mixed; pour into prepared baking dish.
Spread cheese evenly over potatoes, sprinkle with paprika and bake for 1-1/2 hours until browned on top and bubbly.