In its midday bulletin, the IMD issued yellow warning of heat wave over Khordha, Cuttack, Dhenkanal, Mayurbhanj and Balasore districts till 8.30 am of Tuesday.
It also issued yellow alert of heat wave over the districts of Cuttack, Khordha and Dhenkanal from 8.30 am of Tuesday to 8.30 am of Wednesday.
The Met Department has advised people to take precautionary measures for hot weather while going outside from 11 am to 3 pm during the period in these areas.
The weathermen also forecast light rain likely to occur at isolated places in the districts of Malkangiri, Koraput, Nabarangpur, Rayagada, Kandhamal, Keonjhar and Mayurbhanj during next 24 hours.
Today, the highest maximum temperature of 43.2degree Celsius was recorded at Bhubaneswar and the lowest minimum temperature of 20 degree Celsius was recorded at Phulbani in the State, said the bulletin.