Best guess how to dress

This weekend I played around with the Runner's World feature that provides suggestions on how to dress for different weather conditions. I was curious because I sometimes underestimate how many layers I should wear during a run in the cold. Since I'd rather be too cool than too hot my default has been to wear clothes that will be comfortable for most of the run, even it that meant a chilly first mile. This has worked most of the time but I've been fooled once or twice when the wind turned a mildly uncomfortable run into torture. I thought that the RW "What should I wear?" widget would be a helpful way of determining the right set of gear. My experience with the app was mixed. Though it did represent a logical set of clothing and accessories based upon specified conditions it seemed like there was little difference on recommendations whether the temperature was 15 degrees and mild versus -15 degrees and windy. From experience I know those conditions require a completely different set of gear.

I went out this morning for an easy 2.3 miles. I wore both short and long sleeve tech jerseys and tight running shorts with my Brooks lightweight running hat and gloves. That was probably more than the RW app would recommend  but it was comfortable for the 48 degrees. I plan to run tomorrow and then do a final 30 minute+ run on Thursday, rest on Friday and race on Saturday.