That is the number of degrees Fahrenheit it is outside today. The weather app on my phone said it was going to be 57 degrees F, which it was, yesterday.
Yesterday I did not need a sweater. Today I absolutely fucking want one. But I did not wear one, because I thought it would be 57 degrees outside. My phone it trying to kill me.
Now I'm stuck at work, without a sweater, and it's cold outside.
EDIT: Local weather forecast is calling for a high of 38. Checked Bing.com which provides the data for the weather app I used; Bing thinks it's going to be 57 today.
Microsoft is trying to kill us all.