We study a set of simultaneous and coincident ionospheric and thermospheric measurements made by the EISCAT incoherent scatter radar and a nearby Fabry-Perot interferometer, located within the Scandinavian auroral zone. Combined observations of ion and neutral temperatures as well as ion drifts and neutral winds in the F-region are presented for the geomagnetically active night (Kp = 5−-7−) of 9–10 November 1998 and the following quiet night (Kp = 0-0+) of 10–11 November 1998. These data enable a direct calculation of ion temperature enhancements over the neutral temperature, resulting from Joule heating effects, which can be compared directly with the observation. The importance of the neutral wind contribution to the total electric field and Joule heating rates, often assumed to be insignificant, is estimated. Furthermore, MSISE-90 model predictions for neutral temperature are compared to the measurements.