The National Weather Service has issued a Heat Advisory beginning at noon CDT until 8PM CDT that includes JSC. Temperatures today are already running about 1 degree warmer than yesterday. Maximum temperature yesterday at JSC was 96. The combination of temperatures in the mid to upper 90s and high humidity at JSC, Sonny Carter Training Facility and NASA Ellington Field will send the heat index into the 102 to 109 range by mid afternoon.
The NWS issues a Heat Advisory when the heat index >= 108 or the temperature >= 103 F. Please take extra precautions if you work or spend time outside. Curtail outdoor work if possible during this period, drink plenty of water and take other heat precautions.