1. It's a little chilly. 2. It's freezing. (= extremely cold) 3. The temperature's dropping. 4. Make sure to bundle up. (bundle up = put on warm clothes for protection against the cold) 5. We're expecting some winter weather. (winter weather = snow, hail, sleet, ice, etc.)
While we are travelling or waiting for something to happen, we can utilize this time for doing tasks which do not require too much of concentration. Recognize and make use of this time, this can definitely improve your time management.