June Serves Up a Balancing Act of Heat, Clouds, and Classic Humidity
Thursday: Warm and Breezy With a Dash of Morning Uncertainty
Toronto starts off Thursday, June 12, on a mild note, sitting at 15.7°C as of 8:17 AM EDT at Toronto Pearson International Airport. Skies are mostly cloudy, and while the pressure is rising at 101.9 kPa, there’s still a 30% chance of light showers early this morning. Humidity is a moderate 60%, with a comfortable dew point of 7.9°C, and a gentle north-northwest breeze at 10 km/h adds a hint of freshness to the air.
Once the clouds lift, we’re in for a mix of sun and cloud, and the mercury is set to climb to 25°C, with a humidex of 27°C. It’ll feel more like summer than spring by this afternoon. Winds will shift to the northwest at 20 km/h before becoming light by midday. The UV index is a scorching 9, so if you’re outside — especially between 11 a.m. and 3 p.m. — apply sunscreen generously and bring the shades.
Tonight: Clear Skies and a Gentle Night Breeze
Skies will clear tonight, setting the scene for a pleasant evening. Winds become northeasterly at 20 km/h late, bringing in a slightly cooler air mass. The overnight low will dip to 12°C, making it perfect for a walk, an open window, or some quality patio time.
Friday and the Weekend: Cloudier Days, Showers Possible
Friday begins on a bright note, but increasing cloudiness moves in around noon. The high tops out at 19°C, and once again, the UV index stays at a very high 9, so even with clouds, you’ll want sun protection. By nightfall, skies will be fully cloudy with a 40% chance of showers, and the low stays mild at 12°C.
Saturday brings more unsettled weather. Expect mostly cloudy skies with a 40% chance of showers lingering through both the day and night. The high will hover around 19°C, and the low drops only slightly to 13°C — good news for the garden, not so much for your beach plans.
Sunday looks like the weekend’s best bet for drying out. A mix of sun and cloud and a pleasant high of 22°C should make for a great day to get out and about again. The night will bring cloudy periods, but with no major rainfall expected and a low of 14°C, it’ll be mild and manageable.
What to Wear
Today, you’re looking at light layers. A breathable top with a backup jacket in case of a rogue shower works well. With that humidex and UV index, shorts and sunscreen are both good calls. Heading into the weekend, keep an umbrella handy Friday afternoon through Saturday — but don’t retire the sunglasses just yet.
Historic Weather Trivia
On this day in Toronto weather history, the record high for June 12 is a sweltering 34.1°C, set back in 2005, while the record low was a crisp 6.7°C in 1972. Today’s forecast high of 25°C lands right in the sweet spot — warm, but nothing like those record breakers.
