Sun, Storms, and Some Serious Humidex Incoming
Saturday: Muggy and Storm-Ready
Sioux Lookout is off to a warm, cloudy start this Saturday, June 28, with temperatures at 16.6°C as of 6:00 AM. With humidity at a steamy 89%, a dew point of 14.7°C, and southerly winds at 8 km/h, the air is thick — and the weather mood swings are just getting started. The pressure sits at 101.3 kPa and falling, a classic sign of instability.
Expect mainly cloudy skies today with a 40% chance of showers and the risk of a thunderstorm this afternoon. Winds will become south at 30 km/h, giving things a gusty kick. The high will reach 24°C, but it’ll feel more like 29°C with the humidex. The UV index is 7, so sun protection is still a must, even under mostly gray skies.
Saturday Night: Storms Taper, Fog Creeps In
Tonight brings partly cloudy skies, but don’t pack away your umbrella yet — there’s still a 40% chance of showers and the risk of a thunderstorm. As the atmosphere settles, fog patches are expected to develop, likely making for a spooky but serene night near the lake. Winds shift from south 30 km/h to west 30 gusting to 50, before calming by dawn. Overnight low: 17°C — warm and muggy.
Sunday: Sunny Breaks Between Thunder Threats
Sunday kicks off with fog patches, which should dissipate in the morning as sunshine and humidity return. Expect a mix of sun and cloud, but another 40% chance of showers and a risk of afternoon thunderstorms is in the forecast. Winds will settle briefly in the morning before picking up again from the west at 20 km/h, gusting to 40 km/h.
It’ll be hot — the mercury hits 28°C with a humidex of 32 and a strong UV index of 8. Great weather for a dip in the lake, but keep your eye on the radar — it’s shaping up to be one of those “sunshine, then boom” summer days.
Sunday night remains cloudy with a 40% chance of showers, and a slightly cooler low of 14°C.
Monday and Canada Day: A Damp but Manageable Mix
Monday (June 30) looks cloudy with a 40% chance of showers, and a cooler high of 22°C — refreshing after the weekend heat. Monday night stays mild with cloudy periods and continued 40% chance of showers.
For Canada Day (Tuesday), Sioux Lookout will see a mix of sun and cloud with yet another 40% chance of showers, and a daytime high of 25°C — perfectly comfortable for parades, family picnics, or lakeside lounging. The night will stay calm with cloudy periods and a low of 12°C.
Wardrobe & Weather Tips
You’ll want to pack for all the seasons this weekend, but focus on light, breathable clothing, a waterproof shell, and good footwear for wet ground. Bug spray, sunscreen, and a wide-brimmed hat are also highly recommended. And if you’re camping — secure your tent stakes and watch for gusty winds.
Sioux Lookout Weather Trivia
Did you know? Sioux Lookout is home to Ontario’s second-longest freshwater dock, stretching 700 feet into Pelican Lake. That makes it a prime spot for watching both summer sunsets — and fast-approaching thunderstorms!
