Data from the Geostationary Operational Environmental Satellites (GOES) available from NSF Unidata include 16 wavelength channels for GOES-R (e.g., later than GOES-16) class satellites. Data from both GOES-East and GOES-West satellites are available.
Constellation Observing System for Meteorology, Ionosphere, and Climate (COSMIC) limb sounding data available from Unidata includes temperature, pressure, humidity, and ion content information.