Bureau of Meteorology long-range forecasting manager Andrew Watkins said Tasmania's summer outlook was an interesting one.

"If we just look at December, it's looking like more average rainfall conditions, but cooler than average conditions through the month," he said.

"Into January and February, that should ease back a little bit possibly and drier and warmer than average for that second half of summer."

Over the coming days as we head into summer, temperatures in Launceston are expected to drop.

Friday is expected to be sunny with a high of 22 degrees and Saturday will see a cloudy high of 19 degrees with a slight chance of rain.

However, a high chance of showers is expected for Sunday and Monday, both days with an expected high of 15 degrees.

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Some parts of the state are also expecting snow.

Ben Lomond is expected to see snow from Friday through to Wednesday. On Friday, snow is expected above 1500 metres.

Looking back to the previous three months, Dr Watkins said throughout the spring period, there were periods of very intense westerly winds which caused cooler conditions at times.

"And also much wetter conditions at times," he said.

"Overall parts of Tasmania have been drier than average, and parts of eastern Tasmania have also been warmer than average over the spring.

"Nightimes though, average to cooler than average conditions over much for the state - likely as a result of those westerly winds."

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Dr Watkins reminded communities to be alert to potential severe weather conditions over the coming months.

"We've already seen significant bushfire activity during spring, and the outlook for dried and warmer than average conditions will maintain that heightened risk over the coming months," he said.

"This outlook also means the risk of heatwaves is increased, so it's important the community stays up to date with the latest information and advice from authorities and the Bureau's heatwave forecasts and warnings.

"Even with a drier than average outlook, localised flooding remains a risk under particular meteorological conditions such as thunderstorms."

Dr Watkins said the outlook was an important reminder for communities to be alert to the potential severe weather risks over the coming months.

"We've already seen significant bushfire activity during spring, and the outlook for drier and warmer than average conditions will maintain that heightened risk over the coming months.

"This outlook also means the risk of heatwaves is increased, so it's important the community stays up to date with the latest information and advice from authorities and the Bureau's heatwave forecasts and warnings.

"Even with a drier than average outlook, localised flooding remains a risk under particular meteorological conditions such as thunderstorms, and of course communities in the north need to be prepared at this time of year for tropical cyclones."