Humidity indicates the likelihood for precipitation, dew, or fog to be present. Humidity depends on the temperature and pressure of the system of interest. The same amount of water vapor results in …

1 day ago · View a live map of the moisture in the air. Our animated display shows the prior 60 minutes of humidity changes, a key factor in how the weather feels.

Jun 11, 2025 · What is humidity? Humidity is a measurement of the amount of water vapour in the air. Warmer air can hold more water vapour than cooler air, if there is plenty of water available.

Jul 3, 2024 · Humidity is a key factor in weather forecasts, indoor comfort and even health. There are various ways to measure humidity, each providing different insights into the amount of moisture in …

Jun 8, 2026 · The humidity percentage shown in weather apps and forecasts is relative humidity (RH). It measures how much water vapor the air currently holds as a percentage of the maximum it could …

Monitor humidity in Pontiac, SC on our animated map, covering the past hour. View gradient-shaded levels from 1% to 90% to evaluate local moisture, comfort, and potential weather impacts effectively.

Humidity is a measure of water vapor in the air. Meteorologists typically describe water vapor in the atmosphere in two different ways: absolute humidity and relative humidity.