Two ACT State Emergency Service crews responded to reports of a large fallen tree impacting three homes at the intersection of Hurley Street and Laseron Place in Mawson.

In a statement, the SES said the fallen tree "caused substantial roof damage to two of the properties and crews have worked to ensure the area is cleared and safe".

With strong winds expected to continue throughout the weekend, the SES reminds the community to move their cars under cover or away from trees, secure loose items around premises and stay indoors away from windows.

People are also reminded to keep at least eight metres away from fallen power lines or objects that may be energised, such as fences.

The Bureau of Meteorology forecasts winds of 20 to 30km/h for the rest of Saturday, as well as 15 to 25km/h on Sunday.

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Meteorologist Melody Sturm said wind gusts were up to 70km/h on Saturday morning and the main cause of the windy weather was a low-pressure system over the Tasman Sea.

"We're seeing the worse of the winds with peak gust of more than 90km/h on NSW's coastal fringes, but some of that is being pushed towards Canberra," Ms Sturm said.

"We're still seeing wind speeds of 40km/h in Canberra and that's still possible this afternoon before easing off during the evening."

Ms Sturm said Sunday's outlook is better but people should still expect windy conditions as the low pressure system moves northeast.

"The core will move away from the area, decreasing in strength," she said.

For emergency help, call the ACTSES on 132 500.

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