While leaves are changing colour, temperatures won't be very fall-like as the summer heat is expected to come back in a major way today.
That includes a daytime temperature today of 30 degrees, far above the seasonal temperatures expected for the end of September.
Environment Canada Meteorologist Terri Lang says that summer isn't quite gone from the southeast yet as this system looks very similar to the usual summer heatwaves.
"Very typical and sort of the same thing that we see in the summer, a ridge of high pressure that builds over Western Canada. As we know that bumps up the jet stream, which is a delineator between the colder air to the north and the warmer air to the South. So when it forms this big upside-down 'U' over Western Canada, that's when we're usually in the heat."
Lang says the area isn't totally under the cooler weather yet as we're missing normal indicators such as the first frost.
"Our 30-year average high temperatures are around 16° and overnight lows around 2°. I don't think we've even had a frost yet, so to have forecast highs towards the 30° mark, you know nice to see. We don't necessarily see it every September, but the records would show us that it's not that unusual just because the high record temperatures for this time of year are all in the low to mid-30s."
Despite nearing the end of September people will still need to worry about sun protection, with no clouds in sight and plenty of sunshine throughout the day.
"UV index is dependent on cloud cover and the angle of the sun, so how much sun you're going to be exposed to. So if there's no cloud cover, you're going to be exposed to full sun. So it doesn't have anything to necessarily do with the weather itself. It's not associated with hot or cold weather, just sun angle and how much cloud there is."
Lang warns people that because of the hot and recently dry weather, fires are possible in the southeast.
"With this heat and how dry it is and the fact that most of the crops are off the field, this is the time of year both in the spring and in the fall when there's an increased risk for grass fires. So just reminding people to be careful with the sources of ignition just because when it's this warm and dry, any kind of fire can take off pretty easily."