National Weather Service United States Department of Commerce

Critical Fire Weather in Southwest; Snow in North

Elevated to critical fire weather conditions are forecasted to develop across the Southwest U.S. Tuesday, lasting into Thursday. A slow moving, late season winter system will bring snow to portions of the Northern Plains, Central Rockies, and Great Basin through Friday. Isolated severe storms will be possible across parts of east Texas into the lower Mississippi Valley Tuesday. Read More >

Heat Index

by Tim Brice and Todd Hall
 
 
 
Enter a temperature that you would like and choose your units: What the temperature feels like to your body:
Fahrenheit Celsius ° F
Enter your relative humidity:  
% ° C

 

What are the formulas for the heat index script?