With no rainfall in the region for the past few days, maximum temperature rose in several areas and hovered above the normal level.
Chandigarh had a hot and humid day at 35.2 deg C, up by two notches, the weather office said.
Ambala in Haryana recorded a high of 35.3 deg C, up three degrees while Hisar and Rohtak, too, registered above normal maximums at 36.5 deg C and 34.9 deg C, respectively.
Bhiwani recorded a high of 35.8 deg C.
In Punjab, Ludhiana and Patiala recorded maximum temperatures of 34.4 deg C and 35.2 deg C while Amritsar, too, had a hot day at 35.6 deg C.