Heat Index Calculator

Units
%

Heat index

99.7 °F

Heat index
37.6 °C
NWS category
Extreme caution: heat cramps and heat exhaustion possible
Method
Rothfusz regression

Heat index assumes shade and light wind. Full sun can add up to 15 °F (8 °C).

Open the full heat index calculator with the formula and FAQs at Calcs for Life