Control the atmosphere and watch weather come alive
Weather Machine is an interactive weather simulator that lets you control the four fundamental atmospheric variables — temperature, humidity, air pressure, and wind speed — and watch realistic weather unfold in real time. From gentle sunshine to violent hurricanes, every combination produces a scientifically accurate weather pattern rendered on a beautiful animated landscape.
Adjust the four atmospheric sliders and the simulator calculates the resulting weather type using real meteorological principles. The dew point is computed from temperature and humidity, wind chill is factored at low temperatures, and precipitation type is determined by the relationship between temperature and moisture. The canvas renders dynamic particle effects including rain, snow, lightning, fog, and heat shimmer — all driven by your atmospheric inputs.
Weather is caused by the interaction of temperature, humidity, air pressure, and wind. The sun heats Earth's surface unevenly, creating pressure differences that drive wind. Warm air holds more moisture, and when it rises and cools, that moisture condenses into clouds and precipitation. Different combinations produce everything from gentle sunshine to violent hurricanes.
Rain forms when warm, humid air rises and cools. As air cools, it can hold less moisture — the temperature at which air becomes saturated is called the dew point. When air temperature drops to the dew point, water vapor condenses onto tiny particles to form cloud droplets. These droplets collide and merge until heavy enough to fall as rain. Higher humidity and warmer temperatures produce heavier rainfall.
Hurricanes require warm ocean water (above 26°C), high humidity, low air pressure, and pre-existing wind patterns. Warm water evaporates rapidly, feeding massive thunderstorm complexes. The Coriolis effect causes the system to spin. As pressure drops, wind speeds increase. A hurricane is classified when sustained winds exceed 119 km/h.
Last Updated: March 2026