85 F + 50% Humidity, Summer Baseline
Audience: General population, casual outdoor activity
Air Temp
85°F
29°C
Humidity
50%
Heat Index
86°F
30°C
Risk band
Caution
What this means
A typical summer afternoon in most US states. Heat index sits one degree above the actual temperature. Fatigue is possible after prolonged exposure.
What to do
Drink water every 30 minutes during outdoor activity. No special precautions needed for healthy adults under shade.
Source
NWS Heat Index ChartOther Caution scenarios
Not medical advice. The NWS Steadman heat index is a general guideline; individual heat tolerance varies with acclimatization, medications, and pre-existing conditions. Consult a medical professional for individual risk assessment.