A cold front returned to the state yesterday, bringing another bout of wintry weather for the NSW ranges, with Armidale, Glen Innes and Guyra expecting at least a dusting of snow to settle by tomorrow morning.

Armidale is expecting lows of -2 and -3 degrees Celsius this week, with maximums of only 9C and 4C today and tomorrow, with snow forecast.

Tamworth is not expected to reach sub-zero minimums until Saturday, with -1C forecast, while in Glen Innes they can expect a high of 7C today and only 3C tomorrow, with minimums of -2C and -3C, with Guyra expecting -4C tomorrow.

The Bureau of Meteorology has warned residents and farmers to prepare for zero or sub-zero temperatures in many locations.

Bureau NSW regional director Barry Hanstrum said tonight could see the second snowfall of the year for the Northern Tablelands and New England.

Mr Hanstrum said while this system may not come as a shock after the recent cold snap, anyone planning outdoor activities should continue to keep a close eye on weather forecasts and warnings. 

Graziers are warned these cold temperatures and snow showers will increase the risk of stock losses for animals exposed to these conditions.

Although this front is just as strong as the one earlier in the week, it doesn’t hold as much moisture. However, temperatures could drop by as much as 8C below the July average, according to Weatherzone.

Snow is expected to fall as low as 800 metres, and Walgett, while not expecting snow, could potentially have its coldest day in five years.

NSW SES Commissioner Adam Dent said it was important that people were not complacent and undertook necessary preparations if living or working in affected areas or if intending to travel on mountain roads.