UV Forecasts and safety UV Index rating scale Day 1 UV index UV forecast – 5 day UV Safety: Stay Safe in the Sun UV Index: How is It Computed? UV: Clouds, Elevation, and Surface Pollution Menu UV Forecasts and safety UV Index rating scale Day 1 UV index UV forecast – 5 day UV Safety: Stay Safe in the Sun UV Index: How is It Computed? UV: Clouds, Elevation, and Surface Pollution UV Index rating scale 2020-07-29