National Weather Service United States Department of Commerce

Frigid Temperatures with Dangerous Wind Chills; Heavy Rain and Flooding

An arctic cold front will continue to plunge southward through the Plains, Mississippi Valley and the Northwest quadrant of the U.S. on Sunday. As a result, widespread frigid and well below normal temperatures are expected along with dangerous wind chills. Meanwhile, heavy rain and flooding are possible for the Gulf Coast states and much of Hawaii. 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?