I find two temperatures in a day
One is the cold temp when you're walking and the other is the colder temp when you're sitting on a stand for an hour or more.
In near freezing and below temps, I use rubber bottomed insulated boots, and carried an extra pair of wool hunting socks.
Move slower to reduce feet from sweating.
Good to try out hunting socks on hikes through a park than to use them for the first time on a hunt of all day.
And you can make a mistake going strictly by civilian weather forecasts. A lot of them will give or stress the more optimistic low temp for the day, give a temp taken among some tall buildings holding more heat, than trees in a woods would. I'd listen to the forecast and then check the temp on the back deck to gauge the day's temp.
For some, cold is the time it takes to run from a warm house or building, til when the auto's heater is running and warms the inside of the vehicle. That's not the hunter's time.