Dewpoint and Wet-bulb from Relative Humidity

Snow in the Northern Rockies and Lower Great Lakes; Critical Fire Weather in the Southwest and Southern Plains

Moderate to heavy mountain snow and strong winds are expected across the Northern Rockies. Lake effect snow will continue downwind of the Lower Great Lakes. Gusty winds and dry conditions will result in critical fire weather conditions in the Southwest and Southern Plains Wednesday through Friday. Extremely critical fire weather conditions are expected Thursday in portions of New Mexico. Read More >

Relative Humidity

Snow in the Northern Rockies and Lower Great Lakes; Critical Fire Weather in the Southwest and Southern Plains

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?