She's like the Lab version of this guy:
(via)So, mission fitness begins.
A couple of things we do when the temperatures dip during the winter are:
Bones - Juno can chew happily on a bone or deer antler for hours - the mental exertion keeps her from going batty when we're stuck inside because of the weather.
Indoor games - "Find it" (hiding either one of us, toys, or bits of kibble - no need for extra treats - we just use half of her breakfast or dinner) or "Fetch" (good ol' ball or disc tossing in the house - all of her toys are soft, rubbery, and quiet, so we don't worry about breaking anything - and we've mastered the aim over the years).
When we do go out during the winter, we go out for shorter, more manageable walks - several times a day. Nobody wants to get stuck blocks away from home with a dog who's lifting up their paws because their foot pads are literally freezing to the ground! Going for walks in the daytime is also helpful - the sun is shining, so it feels warmer - and mentally it's more enjoyable too. There are more dogs, more people - and, in general, more bustle to keep a dog's brain going enough to tire her out. And the wind just seems to pick up more when it gets dark - or maybe it feels that way.
This was during the day.
These are some tips we use when the mercury takes a nosedive. What do you do to keep the pounds off your dog during the winter?