Heat warning issued for southern Ontario, expected to last into Thursday
Advertisement
Read this article for free:
or
Already have an account? Log in here »
To continue reading, please subscribe:
Monthly Digital Subscription
$1 per week for 24 weeks*
- Enjoy unlimited reading on winnipegfreepress.com
- Read the E-Edition, our digital replica newspaper
- Access News Break, our award-winning app
- Play interactive puzzles
*Billed as $4.00 plus GST every four weeks. After 24 weeks, price increases to the regular rate of $19.95 plus GST every four weeks. Offer available to new and qualified returning subscribers only. Cancel any time.
Monthly Digital Subscription
$4.99/week*
- Enjoy unlimited reading on winnipegfreepress.com
- Read the E-Edition, our digital replica newspaper
- Access News Break, our award-winning app
- Play interactive puzzles
*Billed as $19.95 plus GST every four weeks. Cancel any time.
To continue reading, please subscribe:
Add Free Press access to your Brandon Sun subscription for only an additional
$1 for the first 4 weeks*
*Your next subscription payment will increase by $1.00 and you will be charged $16.99 plus GST for four weeks. After four weeks, your payment will increase to $23.99 plus GST every four weeks.
Read unlimited articles for free today:
or
Already have an account? Log in here »
Hey there, time traveller!
This article was published 11/07/2025 (258 days ago), so information in it may no longer be current.
TORONTO – Environment Canada has issued a heat warning for southern Ontario, saying hot and humid conditions could last into next Thursday.
The alert issued Friday morning says daytime highs for areas between Windsor and Cornwall are expected to range from 29 C to 32 C, with the humidex making it feel like it’s 35 C to 40 C.
Overnight lows are expected to provide little relief, ranging from 19 to 23 degrees.
The weather agency says the hottest day is expected to be Saturday and a shift in weather patterns on Thursday is expected to end the long stretch of heat and humidity.
People are advised to drink water often, watch for signs of heat exhaustion and to check on older adults and those at risk of heat illness.
This is the third heat warning issued for southern Ontario this summer, including extreme heat that broke records in June.
This report by The Canadian Press was first published July 11, 2025.