Canberra make sure you rug up, and prepare to get the credit card out to scrape the frost off your windshields.

The territory is expecting a dusting of snow on the Brindabella Mountains as temperatures plummet to a low of minus 7 over the weekend.

While Friday and Saturday will see relatively modest overnight lows of minus 1, come Sunday things will be much frostier. A low of minus 7 is forecast for Canberra ahead of a top of just 10 degrees.

Friday will see rain and a top of 12 degrees, and Saturday is shaping up to be a sunny 11 degree day.

Conditions don't look overly pleasant for the first week back at school either, with the chance of bursting showers and strong winds up to 50kph.

Afternoons are expected to reach average temperatures of around 13-14 degrees from Monday through to Wednesday and there's snow on the cards for the Brindabella Mountains as well. 

Out on the horse track early Wednesday morning, in a paddock full of frost looking over a picturesque Thoroughbred Park, trainers and horses alike struggled against sub-zero temperatures.   

Lead trainer Adam Ayre said that local horses generally acclimatise to the colder conditions better than the interstate horses.

"The horses that are bred in Canberra are used to the colder conditions, but the horse's interstate struggle a little bit with it and are reluctant to come out at first, then overtime they get used to it," he said.

Mr Ayre said work could be a bit slow on cold, winter mornings.

"Wearing extra layers doesn't make it go quicker. Some of the time were just waiting for things to defrost before commencing work."

Fog could also create an issue, at times shutting down the track for the morning. 

"If the supervisor says that he can't see anything beyond 200m, the track will be closed for a short period of time because training can become quite dangerous for everyone," Mr Ayre said.