The Department of Infrastructure says it'll be gritting the Mountain Road this afternoon.
It took to Facebook, saying staff would salt the route from around 3.30pm in preparation for snow which is expected to fall later.
It says it wants to do the work as close to the snowfall as possible to stop windy conditions blowing the treatment away.
A yellow weather warning runs from 5pm for snow on higher ground this evening.
New children's soft-play coming to tearooms in Laxey
More dates added to food hygiene training
Peel Secret Santa scheme brings hope to Island families this Christmas
Own Homes approaches 1,000 pre-registrations on the Isle of Man
Timpson applies for key-cutting kiosk at Tesco
Post Office suspends deliveries of goods to the EU
Rob Callister confident in election result despite legal challenge
Illegal immigrant turned back at Manx border can't stay in UK