Weather: July Daily Weather,Part II Have some lemonade!, 1 by MySharona

MySharona wrote:
There is no wind. The air is heavy. It's just HHHx10 :P

81.1 °F / 27.3 °C
Thunderstorm
Humidity: 73%
Dew Point: 72 °F / 22 °C
Wind: Calm
Wind Gust: 0.0 mph / 0.0 km/h
Pressure: 29.86 in / 1011.1 hPa (Rising)
Heat Index: 85 °F / 30 °C
Visibility: 10.0 miles / 16.1 kilometers
UV: 1 out of 16
Clouds: Mostly Cloudy 4900 ft / 1493 m
Mostly Cloudy 13000 ft / 3962 m
Overcast 20000 ft / 6096 m

Tonight
Mostly cloudy with showers and thunderstorms likely in the evening...then partly cloudy with chance of showers and thunderstorms after midnight. Areas of fog after midnight. Some thunderstorms may produce heavy rainfall in the evening. Low 72. Southwest winds 5 mph. Chance of rain 60%.

What is this?