Not all weather is created equal. The Perfect Weather Index (PWI) ranks weather comfort across the United States on a 1–10 scale — combining temperature, sunshine, humidity, wind, and precipitation into a single daily score. Use this page to find where the weather is most comfortable right now, this week, this month, or over the course of a full year.
Updated daily using National Weather Service forecast data.
The Perfect Weather Index is a daily comfort score calculated from five National Weather Service forecast factors. Each factor is weighted and combined into a single score from 1 (poor) to 10 (perfect). A score of 8 or higher means genuinely excellent conditions for outdoor activity. Most days across most of the U.S. fall in the 4–7 range.
The PWI makes it easy to compare weather comfort across different cities and regions at a glance — without having to interpret multiple separate forecasts. Rather than asking "what will the temperature be?", it answers the more useful question: "where will the weather actually feel good?"