What it does
The National Weather Service weather calculator groups temperature, moisture, pressure, wind and atmospheric calculations.
The NWS collection separates temperature, moisture, pressure, wind and other atmospheric relationships, with formula links beside the tools. The relative-humidity route calculates dew point and wet-bulb temperature from air temperature, RH and actual station pressure. It explicitly excludes the altimeter setting as a substitute for station pressure. Temperature choices are Fahrenheit, Celsius and Kelvin; pressure choices are inches/mm of mercury or millibars (hPa). The linked method converts temperature to °C and pressure to mb/hPa internally, and describes wet-bulb output as an approximation from an error-checking process. Choose the moisture route matching the quantities you actually know and retain their units with the result.
Strengths
- Weather-specific calculation families
- Formula links beside the tools
Best for
- Checking a defined atmospheric relationship
Sources
- Weather Calculator (Oct 26, 2026)
- NWS RH Route Actual Station Pressure and Unit Controls (Oct 26, 2026)
- NWS RH Method Unit Basis and Wet-Bulb Approximation (Oct 26, 2026)