>>881656Unless it snows, then frost is the closest you will get to pic related.
Wind, rain, mud, hail and frost are the things you're going to get.
Mud is going to fuck your trousers and boots, also your tent might get caked in mud.
Depending on how well your waterproofing is, you will either get abit damp or soaked through when it rains.
Wind will make you colder than you would be if you are out in the open, try to camp in sheltered areas, if you can walk on the sheltered side of a hill, do it.
Frost and hail are probably not going to happen but if they do, with hail get in cover (hail doesn't last too long as ive seen), if its frost be careful on hills as the ground will be a wee bit more slippy.
This is all implying the weather is horrible, it could be fine or even grand so be prepared for the worst, and anything better is a bonus.
Walking in winter isn't too different than walking in summer in the UK, just be careful when camping near rivers/streams and keep warm when in camp. Look at a few videos about layering to ensure you are always warm and waterproof.
Good luck on your hike.