National Weather Service United States Department of Commerce

Snow in the Northern Rockies and Lower Great Lakes; Critical Fire Weather in the Southwest and Southern Plains

Moderate to heavy mountain snow and strong winds are expected across the Northern Rockies. Lake effect snow will continue downwind of the Lower Great Lakes. Gusty winds and dry conditions will result in critical fire weather conditions in the Southwest and Southern Plains Wednesday through Friday. Extremely critical fire weather conditions are expected Thursday in portions of New Mexico. 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?