That'll change later this week, when showers and a thunderstorm are predicted.

Here's the top headlines for you this morning.

Colliers' state chief executive has defended his role in the City to the Lake land deals and says his agency had been unfairly criticised.

Paul Powderly has written to the ACT committee investigating the affair, saying Colliers had never been asked to provide a formal valuation on the land in Glebe Park that the government bought from businessmen for $3.8 million (plus GST) in 2015.

Auditor-General Maxine Cooper found the purchase, and two others at the lake, lacked transparency, accountability and rigour.

Kirsten Lawson with this story about Mr Powderly's defence.

Now for more on this front of the dual citizenship saga, as speculation continues in Labor circles ACT senator Katy Gallagher could be caught up in Parliament's growing crisis.

The Labor frontbencher has refused to say when moves to renounce her entitlement to UK dual citizenship was confirmed by British authorities.

The senator revealed in September she could have been in breach of the constitution before the 2016 federal election, due to a possible entitlement to British citizenship through her father.

Tom McIlroy has the latest on this story.

A stoush over plans for Australian Taxation Office staff to begin hot-desking reached the workplace umpire, with unions and the ATO at odds over whether the workplace trend is allowed under their industrial deal.

While the unions representing staff say the Tax Office did not signal it was going to roll out hot-desking to its new Gosford building, the agency says its workers knew the enterprise agreement opened the way for the change when they supported the deal in June.

But unions said the ATO's public servants believed otherwise when they voted 'yes' to the new agreement in June.

For more on this dispute, read here for my report.

It's one of Canberra's busiest routes, reduced to a frustratingly slow pace on some mornings. Northbourne Avenue has transformed into a construction site as light rail works there reach their "peak".

This month rolling closures along the main thoroughfare, from Alinga Street to the Barton Highway, have brought much of the city to a crawl, and traffic delays are set to get even worse at the weekend.

Between Friday and Monday, four key intersections will close for 54 hours and, on one occasion, up to 66 hours for the installation of the rail track's concrete slab.

Sherryn Groch reports on the upcoming disruptions to the thoroughfare.

The territory government promised 20 psychologists for ACT schools in a 2016 election campaign pledge. None have been appointed a year later.

While the government put up $2.4 million over four years to fund five of the 20 positions in the 2017-18 budget, a spokesman has confirmed none have been filled.

The promise was one of more than 100 parliamentary agreement pledges Chief Minister Andrew Barr and Greens leader Shane Rattenbury this week said were "on track" to be delivered by the 2020 election.

Daniel Burdon has more on the delay.