We recommend you start getting a feel for the weather pattern 10 days out, start planning trip details about 5 days out (start clearing your calendar), and lock in your plans about 2-3 days out. This is based on how accurate we feel weather forecasts are at certain lead times.
Don’t forget: Start faking that you’re sick at work or school a few days out by coughing and leaving packets of Emergen-C all over your desk.