Sudden downpour causes flash flooding in Constitution Avenue, Canberra

Gungahlin resident Michael Rorke said he was driving out of the National Convention Centre car park on Constitution Avenue when his car became stuck in flood waters whipped up by the sudden storm.

"There was all of this water sitting here beside the road which didn't look too bad, I could see a 4WD [driving through] there, and unfortunately it was deep enough that my car got about halfway through the giant puddle and came to a stop," Mr Rorke said as he sat on his somewhat submerged BMW.

"With all the works and jerks, the drains don't appear to be working. There's no signs up or anything. One of the guys drove past and said we've been having these sorts of problems since doing the work."

Despite his predicament, Mr Rorke remained upbeat.

"Even sitting here on the car I can see the water is receding, it's dropped about an inch or two after that big deluge," he said.

"At the end of the day it is what it is but it shouldn't really happen in the middle of a car park. It's not like I'm driving in the middle of a dirt road."

It's not the first time this week a car park has been flooded around the area.

A staff member at the pool said the government car park behind the pool on Tuesday experienced flooding.

The ACT SES received three call-outs because of the storm, an ACT Emergency Services Agency spokesman said.

One was a report of a flooded backyard in Griffith and the other two were leaking roofs.

"ACT SES recommends motorists do not drive through flood waters," the spokesman said.

"If you need emergency assistance during a flood or storm, call 132 500."

You probably won't have to call in the orange-clad troops this weekend though: showers are expected to clear over the weekend for a mild, mostly cloudy Saturday and Sunday.

Weatherzone meteorologist Kim Westcott said there was a good chance of sporadic showers throughout Saturday but expected less than 5 millimetres of rain.

"They won't be particularly heavy like early [Friday] morning," she said.

Ms Westcott said the rain band that brought recent showers to the capital would move away from the ACT by Sunday, creating drier conditions, but some remaining instability would create cloud cover.

"Both Saturday and Sunday are looking to be cooler days, mainly because of that cloud," she said.

Saturday is forecast to reach 21 degrees, while Sunday is expected to hit 20 degrees.

There's also more sunshine on the horizon with temperatures set to climb from about Tuesday into the mid to high 20s, with a possible sprinkle of rain.

"We should start to see a lot more sunshine," Ms Westcott said.