Dewpoint and Wet-bulb from Relative Humidity

Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Heat expands across the Desert Southwest, Plains, Mississippi Valley and Midwest into Monday. Fire weather concerns continue for portions of the Intermountain West. Active monsoonal moisture fuels thunderstorms over the Southwest with possible flash flooding. Tropical cyclone Fausto in the Pacific, should weaken as it approaches Hawaii; Dangerous surf, swells and rip currents are expected. Read More >

Relative Humidity

Heat Across the Center of the Nation; Severe Thunderstorms Across the Great Lakes and Ohio Valley

Relative Humidity

by Tim Brice and Todd Hall

Enter a temperature, relative humidity and actual station pressure

What is the formula for the relative humidity script?