What to know
- Toronto’s summer 2026 is expected to be more seasonable and stable, with fewer dramatic temperature swings than May.
- June will bring a mix of upper-teens to upper-20°C temperatures, with occasional spikes into the low 30s, but no prolonged heatwaves expected.
- Meteorologists say this summer will feel “on and off” rather than consistently hot, with alternating warm and cooler periods.
- Despite the variability, experts stress it will still be a pleasant summer with plenty of warm, outdoor-friendly days.
- In Toronto, the forecast supports a busy event season, with outdoor concerts and festivals continuing across venues like RBC Amphitheatre and Rogers Stadium.
Your summertime weather forecast is here, and experts say this season won’t be as intensely hot as last summer.
June is almost here, and with sunnier conditions in the forecast and a calendar full of events, it certainly feels like summertime in Toronto. But after a volatile temperature range in May, offering everything from chilly single-digit nights to sudden bursts of summer heat, it looks like June will be a little more seasonal and consistent.
Dr. Doug Gillham, a meteorologist with The Weather Network, told Now Toronto that June is expected to bring more stable weather than the dramatic swings from cool to hot that we’ve seen throughout May. However, this is still late spring/early summer in the city, so temperatures will still fluctuate between cooler days that feel more spring-like and warmer summertime conditions.
Toronto’s June weather forecast looks far more stable
Rather than consistent heat, June’s forecast includes a mix of temperatures with some days in the upper teens, most in the 20s range, and occasional days reaching the low 30s. Gillham noted that this pattern is fairly typical for Toronto in June, since summer usually does not fully settle in until later in the season.
“We don’t really expect summer to set in until we get really to the end of the month and through July and August,” Gillham explained. “But some years we get into June, and it’s just full on summer.”
Will Toronto avoid another early summer heatwave?
The meteorologist explained that while some 30-degree days are expected, this June will probably feel cooler and more balanced compared to last year’s intense early summer heat waves.
“We had a severe heat wave later in June, but this year, we’ll have a better mix,” he explained. “We’ll still have some late spring weather. Of course, for those who are eager for consistent hot weather, that’s disappointing, but for most people it’s going to be comfortable.”
“The back and forth swing should be closer to normal.”
Gillham explained that the forecast includes more comfortable and seasonable weather overall, and he emphasized that although people hoping for nonstop hot weather may be disappointed, the conditions should still provide plenty of pleasant summer-like days without the “weather whiplash” seen earlier this spring.
What meteorologists expect for the rest of the summer
Looking at the entire summer, Gillham described the forecast as “changeable,” with alternating periods of heat and cooler weather instead of long-lasting extreme temperatures.
“It’s going to be sort of on again, off again with the heat, rather than persistent, relentless, extreme heat,” he shared.
But this won’t be a “bummer summer,” he explained, as temperatures will be warm.
“Summer’s not cancelled. It’s just not going to be a relentless scorcher,” he continued.
Also, good news for the farmers, gardeners, and those who like a little humidity in the forecast: it won’t be a dry summer
“We expect more frequent threats for showers and thunderstorms, rather than kind of locking into extended periods of dry weather,” Gillham shared.
He expects more frequent chances for showers and thunderstorms, which could interrupt beach or pool days but would benefit gardens, agriculture, and air quality.
“It’s better for your yard and your garden, it’s better for agriculture, it’s better for air quality,” the expert explained. “You’ll be able to give the AC breaks and open up the windows at times.”
Outdoor concerts happening this June in Toronto
So, with cooler temperatures this June compared to 2025, it’s not a bad time to get outside and enjoy the beginning of summer without being overwhelmed by the heat later on in the summer.
While FIFA and Pride will see hundreds of events across next month, there are also dozens of concerts happening at outdoor venues across the city.
RBC Amphitheatre, formerly Budweiser Stage, is Toronto’s main waterfront outdoor concert venue. There are a few shows scheduled for the beginning of the month, including Amyl and the Sniffers on June 4, and bbno$’s The Internet Explorer Tour on the 5th.
All Things Go Festival will take over the space June 6 and 7, with performances from artists like Lorde, Kesha, and The Beaches.
The Bleachers will grace the stage on June 9, with Goose slated to perform on June 13. Machine Gun Kelly’s concert is set for June 14, while Bailey Zimmerman has a show on the 18th, followed by the Arkells on the 19th.
Later in the month, The Strokes are performing on June 21, while Godsmack’s show is set for June 24. Paul Simon is coming to the amphitheatre on the 25th, followed by Evanescence with Spiritbox and Nova Twins on the 29th, and Jack Johnson on the 30th.
Read More
Meanwhile, the newer Rogers Stadium at Downsview is also hosting some huge outdoor concerts this June. Luke Combs is bringing his My Kinda Saturday Night Tour to the venue on June 5 and 6, while Mumford & Sons, joined by Caamp and Dylan Gossett, are set to play the stadium on June 13.
Post Malone and Jelly Roll are bringing their double bill, The BIG ASS Stadium Tour Part 2, to Rogers Stadium on June 16, while Noah Kahan is playing on the 28th.
