‘Don’t put your winter jackets away just yet’: Bitterly cold temperatures in store Tuesday before midweek warm up

Temperatures will plummet Tuesday with an approaching cold front, so don't put away your winter coats just yet. Julie Atchison breaks down the forecast.

Double digit temperatures are once again in the forecast for this week, but Londoners will first need to go through about bout of bitterly cold weather come Tuesday.

“We do have a low-pressure system that’s approaching the area,” said CTV News London Meteorologist Julie Atchison. “It will bring a push of cold as we head through the overnight and temperatures are going to drop off.”

Atchison says a few showers are in the forecast Monday afternoon with a high of 5 C. There is a chance of rain showers or flurries going into the evening hours, with a 60 per cent chance of flurries overnight.

“Don’t put your winter jackets away just yet,” she said. “You’ll need them in the morning.”

Bitterly cold temperatures will be the main weathermaker Monday night into Tuesday with an overnight low of – 5 C, feeling like – 12 with the wind chill.

As people head out the door Tuesday, make sure to dress warmly as the daytime high will only peak at – 1 C, but will feel like – 13 in the morning and – 7 in the afternoon with the wind chill. The day will start off cloudy with a 40 per cent chance of flurries, but the sun will come out later in the day.

Atchison says there will be a shift in the weather come Wednesday, with warmer temperatures expected due to a Pacific flow developing with the jet stream.

“That will bring in some milder temperatures on Wednesday with mainly sunny skies,” she said.

Temperatures dramatically increase Wednesday, with a high of 9 C and plenty of sunshine.

The rest of the week will see a mix of sunshine, cloud and rainfall, but temperatures will be in the double digits, ranging from 10 C – 18 C.

“So, we’re on a ride with our temperature tomorrow dropping below freezing, but we will start to warm up as we head toward the weekend,” Atchison said.

Here’s a look at London’s long-range forecast

Monday: Becoming cloudy this afternoon with a few showers. Wind becoming northwest 20 km/h gusting to 40 early this afternoon. High 6. UV index 5 or moderate.

Monday night: A few rain showers or flurries ending late this evening then cloudy with 60 percent chance of flurries. Wind northwest 30 km/h gusting to 50. Low minus 5. Wind chill minus 12 overnight.

Tuesday: Cloudy with 40 percent chance of flurries in the morning then a mix of sun and cloud. Wind northwest 30 km/h. High minus 1. Wind chill minus 13 in the morning and minus 7 in the afternoon. UV index 5 or moderate.

Wednesday: Sunny. High 9.

Thursday: A mix of sun and cloud with 30 percent chance of showers. High 18.

Friday: Cloudy with 60 percent chance of rain. High 10.

Saturday: A mix of sun and cloud. High 13.

Sunday: A mix of sun and cloud. High 18.