The frontman, on loan at Brentford from Red Bull Salzburg, suffered ankle ligament damage at Blackburn last weekend.
22-year-old Djuricin has scored four goals to date for the Bees including a well-received winner in the recent London derby against Queens Park Rangers.
With Nottingham Forest the visitors to Griffin Park next Saturday, Brentford's goal threat will surely come from Alan Judge and Lasse Vibe who have 11 between them in the Championship this season.
Denmark international Vibe arrived in the summer from IFK Goteborg.