UV Index

Dangerous Heat in the Central and Southern U.S.; Thunderstorms and Heavy Rain in the Northern Plains

Dangerous, prolonged heat is expected across portions of the Central and Southeast U.S. through July. Scattered severe thunderstorms are expected over parts of the northern Plains into the upper Mississippi Valley Tuesday, with damaging winds and large hail as the primary threats. Heavy rainfall could lead to areas of flooding across the northern Plains, Upper Midwest, Southeast and Southwest. Read More >

Ultraviolet (UV) Index Forecasts

Text Forecast An easy to text listing of the daily UV forecast values for 58 cities across the U.S.

UV Forecast Cities Map A map of the U.S. with daily UV Index forecast values for 58 cities

UV Forecast Map with Contours A map of the U.S. that shows contours of daily UV Index forecast values

Search for Today's UV Index Search for today's UV Index by zip code or by city and state

UV Index Information Answers to common questions about the UV Index and UV radiation

A Guide to the UV Index Brochure developed by EPA for meteorologists, educators and public health officials on recommendations for reporting the UV Index.

Links to Related UV Index Sites