From Frosty Beginnings to Glowing Skies — Summer’s Coming in Gently
Saturday: A Chilly Start with a Sunny Payoff
Thunder Bay woke up this Saturday, June 14, to a rather frigid surprise. At 6:00 AM EDT, the temperature is a frosty 0.5°C, and with the dew point also at 0.5°C, we’re sitting at 100% humidity. Yes, it’s officially chilly enough to make your coffee shiver. Winds are light from the west at 5 km/h, visibility is crystal clear at 32 km, and pressure is steady at 102.4 kPa — no big changes brewing for now.
The good news? We’re heading for a high of 18°C this afternoon with a mix of sun and cloud, which should thaw us all out nicely. The UV index climbs to 8, which is very high, so don’t forget sunscreen — even if you started the day wrapped in a scarf.
Tonight: Chilly but Clear
Tonight will be partly cloudy early, clearing after midnight, and dipping to a low of 4°C. That’s still coat-worthy for your midnight walk or backyard stargazing, and gardeners should keep an eye on tender plants — it’s not frost, but it’s flirting with it.
Sunday: Sunshine Warms the Scene
Sunday brings mainly sunny skies, a touch more warmth, and a high of 19°C — ideal for outdoor plans whether you’re hiking, biking, or just pretending to clean the garage while soaking up the rays. The UV index rises to 9, so it’s a strong SPF and hat day. Even if it’s not sweltering, those rays are intense.
Sunday night turns cloudy, with a warmer low of 11°C, a big jump from Saturday night and a good signal that the chill is slowly lifting.
Monday: Sun, Cloud, and a Chance of Rain
Looking ahead to Monday, Thunder Bay sees a mix of sun and cloud, and we could get a 40% chance of showers by nightfall. The high reaches 21°C, offering one of the warmest days of the stretch, so even with the cloud cover, it’ll feel comfortably summery. Overnight Monday, showers remain a possibility with a low of 11°C.
What to Wear
Start today with a warm jacket — yes, really — especially early on. By mid-morning, a sweater or long sleeves will do, and by afternoon, you’ll be comfy in lighter layers. Sunday and Monday offer more warmth, but don’t forget your sunscreen; UV levels are peaking even when the temps are modest.
Historic Weather Trivia
Thunder Bay is no stranger to weather whiplash. On June 14, the record high is 31.7°C, while the record low is a frosty -1.1°C. This morning’s temperature comes dangerously close to that record chill. It’s just another reminder that Lake Superior keeps things… interesting.
