For example, the NWS says if it's 96 outside and the humidity is 65%, the heat index temperature is 121 degrees. That falls in the orange zone of the chart, indicating a dangerous temperature.

For example, the NWS says if it's 96 outside and the humidity is 65%, the heat index temperature is 121 degrees. That falls in the orange zone of the chart, indicating a dangerous temperature.

Extreme heat makes it especially hard for your body to cool down, so you need to be extra careful if you exercise or play ...

For example, the NWS says if it's 96 outside and the humidity is 65%, the heat index temperature is 121 degrees. That falls in the orange zone of the chart, indicating a dangerous temperature.

Outdoor activities are virtually impossible when a wet bulb temperature reaches 32 degrees Celsius – the equivalent of 132 degrees Fahrenheit on the heat index. Anything above 35 degrees Celsius ...

For example, the NWS says if it's 96 outside and the humidity is 65%, the heat index temperature is 121 degrees. That falls in the orange zone of the chart, indicating a dangerous temperature.

D.C.-area forecast: Heat index nearing potentially dangerous 110 degrees today Even if we fail to hit 100 degrees, the combination of high heat and very high humidity keeps our bodies from cooling ...

Farther north along the gulf, the oil and energy hub of Asaluyeh, Iran, saw its heat index reach 146 degrees (63.3 Celsius) Tuesday and 148 degrees (64.4 Celsius) Wednesday. Its August peak was ...