Wet Bulb Globe TemperatureToday's WBGT is shown at right. The Wet Bulb Globe Temperature is a measure of heat stress in direct sunlight which takes into account the temperature, humidity, wind speed, sun angle and cloud cover (solar radiation). Please view the current WBGT at right, and then use the WBGT and associated charts and other information on this page to aid in managing the work/rest cycles and fluid intake of personnel at Fort Belvoir. CAUTION: Hourly fluid intake should not exceed 1.5 quarts. Daily fluid intake should not exceed 12 quarts.