The A35 has now re-opened between Dorchester and Bridport after a jack-knifed lorry this morning.
The road has now been cleared - but motorists are still being urged to only travel if absolutely necessary.
Snow is starting to clear as sleet and rain begins to pour down in coastal areas.
Dorset Police are asking drivers to check their vehicle is fully prepared for snow and icy before setting off on their journey.
Have a look at our photos of snow in Dorset.
Keep up to date with our live updates for snow in Dorset.