Expect a Weather Mood Swing Today with Rain, Thunder, and Humidity
Wednesday, June 18, 2025 – Weather Update for Sioux Lookout
SIOUX LOOKOUT – WEATHER – A calm and mild start to the day in Sioux Lookout might feel like a gentle prelude, but hang onto your umbrellas—Mother Nature is setting the stage for a dramatic weather matinee. At 5:00 AM CDT, the temperature sat at 11.4°C, with partly cloudy skies, a balmy 100% humidity, and just a light breeze from the south-southwest at 4 km/h. With pressure currently at 100.8 kPa and falling, there’s a stormy shift on the horizon.
Today: Sunshine Fades to Storm Risk
If you’ve got outdoor plans, best to front-load them into the morning. Sunny skies will dominate early, but clouds will roll in around noon, leading to a 60% chance of showers late this afternoon. There’s also a risk of a thunderstorm—so don’t let the sunshine lull you into a false sense of security. Today’s high is 23°C, and with humidity creeping up, it could feel a touch warmer.
The UV index hits 7, so whether you’re gardening, fishing, or simply lounging outside, a layer of sunscreen is highly recommended.
Tonight: Showers Linger Under Cloudy Skies
As evening sets in, clouds hold steady, and there’s still a 60% chance of showers, especially early in the night. Thunderstorm activity may trail into the early evening before tapering off. Temperatures will ease down to a comfortable low of 11°C, making for decent sleeping weather if you can drown out the raindrops.
Thursday: Cooler with Showery Start
June 19 brings cloudy skies, and a 40% chance of morning and early afternoon showers. Winds will shift from the east at 20 km/h, offering a cooling breeze. The daytime high of 19°C will be noticeably more subdued than today’s, and with a moderate UV index of 3, it’s a good day to catch up on indoor chores or explore shaded hiking trails.
Looking Ahead: Cloudy Trend Holds
Friday continues the grey theme, with a 40% chance of showers and a daytime high of 22°C. Saturday, however, offers hope for the sunshine-deprived, with a promising mix of sun and cloud and a warm high of 25°C. If your weekend plans involve a BBQ or lake visit, Saturday might be your weather winner.
What to Wear?
Layers are key today. Start with a light jacket this morning, switch to breathable attire by noon, and keep a compact umbrella or rain shell handy for the afternoon and evening showers. And with the UV index spiking, don’t forget your hat and sunscreen.
Sioux Lookout Weather Trivia
Did you know? Sioux Lookout is known as the “Hub of the North” and has a history tied closely to railway and bush aviation. Today, its unique geography and proximity to northern lakes make it a key observation point for storm development moving in from the west—making it a true weather-watcher’s hotspot!
