Canberra woke up to foggy conditions on Monday however temperatures are expected to climb to a balmy 30 degrees.
Dr Helen Reid from the Bureau of Meteorology said the fog was caused by humidity in the air that cooled down enough to form a cloud-like blanket in the city.
She said the fog had mostly re-evaporated into the air as temperatures rose.
The warmer temperatures are a result of northerly winds.
However the lingering taste of summer will fade by Tuesday where the top temperature is expected to drop to 24 degrees.
"Tomorrow will be autumn - the weather doesn't listen to the calendar," Dr Reid said.
"We do have a cooler air mass in the southeast making [Tuesday] much cooler."
Temperatures are likely to heat up towards the end of the week with Thursday and Friday both expected to reach 27 degrees.
Dr Reid said the bureau did not expect much rainfall in the ACT this week.
However the bureau's autumn outlook said it expected autumn would be wetter than average for Canberra following a particularly wet and cool summer.
Maximum temperatures in the ACT are expected to be lower than average this autumn, but minimum temperatures are forecast to be above average.
Dr Reid said more warm days like Monday were a possibility throughout March.
La Nina conditions are expected to phase out during autumn.
Our journalists work hard to provide local, up-to-date news to the community. This is how you can continue to access our trusted content:
- Bookmark canberratimes.com.au
- Download our app
- Make sure you are signed up for our breaking and regular headlines newsletters
- Follow us on Twitter
- Follow us on Instagram
