Weather whiplash as powerful storm ushers in temperatures that will dip to 4 C

[guest]

It’s the calm after the storm Thursday, but grab a jacket.

After Wednesday’s powerful storm wreaked havoc across the sweating city, the heatwave is officially over, with a forecast high of 17 C for Thursday under a mix of sun and cloud with an overnight low of 4 C.

The mercury had reached 30.7 C Wednesday but by Thursday morning, Ottawa awoke to 10 C. After weeks without rain, 5.7 mm fell along with the downed trees and ripped-off roofs.

Friday is expected to be a mix of sun and cloud with a high of 15 C and a low of 6 C.

High of 16 today yesssss #ottweather #sweaterweather pic.twitter.com/A33B9gqzJy

— Tabuloween

(@TabulaRasaCos) September 28, 2017
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My favorite subject of many a sunset, after the storm. #ottstorm #ottweather @StormHour #HDR pic.twitter.com/drIrKrD0O6

— PHOTOgriff (@photogriffDOTca) September 28, 2017
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Ottawa went from Heat warning to Frost advisory in less than 24 hours #ottweather

— Ma19k (@MalakKhalaf_) September 28, 2017
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The last Saturday in September should be sublime with a forecast high of 16 C under pure sunshine and a low of 4 C.

Sunday is even better, sunny and 19 C with a low of 5 C.

Then it’s unseasonal – but not sweltering – weather into the first week of October, when a typical high is more like 16 C.

Monday and Tuesday are expected to reach 21 C under a mix of sun and cloud.

Wednesday is forecast to hit 23 C.

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