Arctic Morning Start, But Don’t Be Fooled—Warmer Air Is On the Way
A frigid morning in Sioux Lookout and Pickle Lake gives way to sunny skies and a mild afternoon. Flurries and cooler air return midweek as winter holds on!
SIOUX LOOKOUT – Weather Report – March 25, 2025: If you stepped outside this morning in Sioux Lookout or Pickle Lake and felt personally attacked by the cold, you’re not alone. At 5:00 AM CDT, temperatures plunged to -20.7°C at Sioux Lookout Airport under clear skies. With a north breeze at just 4 km/h, the wind chill still manages to drive it down to a nippy -24°C. The barometric pressure is a solid 101.8 kPa and rising, and humidity is hanging around at 83%. So yes, it’s cold—but it’s the sunny kind of cold.
Fortunately, today’s outlook comes with some relief. Expect full sunshine across the region, with winds picking up slightly—up to 15 km/h. The high will climb to a surprisingly pleasant +3°C. But don’t ditch your layers just yet; the morning wind chill will sting at around -23°C. The UV index rises to 3, so even in this deep freeze, your eyes might appreciate a pair of shades.
Tonight and Wednesday: A Temperature Tug-of-War
Tonight, skies remain partly cloudy, and temperatures will slide back down to -8°C. Light winds continue, but the wind chill will make it feel closer to -13°C overnight. If you’re stargazing tonight, dress like you’re planning to summit Mount Everest—minus the altitude.
Wednesday brings mainly cloudy skies with a 40 percent chance of afternoon flurries or rain showers. Winds will shift westward and pick up to 20 km/h with gusts up to 40, adding a bit of bluster to the day. Despite that, the high will nudge up to +4°C. That morning wind chill will still start off at a brisk -13°C, though, so it’s another layer-up morning with a layer-down afternoon. The UV index holds at a moderate 3.
Wednesday night stays cloudy, with a 40 percent chance of flurries and another low of -8°C.
The Rest of the Week: Cold Creeps Back In
Thursday gets clouded over again, with a high of only -3°C—so don’t expect the warmth to stick around. That night brings a 30 percent chance of flurries and a low near -6°C. Winter clearly hasn’t read the calendar.
Friday is a bit of a wildcard, with a mix of sun and cloud and a 60 percent chance of snow. The daytime high will hover near -1°C, while the evening dips back to -13°C under cloudy periods with another 60 percent chance of snow. Spring is still acting like it’s waiting for an invitation.
Wardrobe Wisdom for Sioux Lookout & Pickle Lake
This is a “dress like an onion” kind of week—start with thermal layers, then add a parka, hat, mitts, and warm boots for those brisk mornings. By mid-afternoon today and tomorrow, you might find yourself shedding a layer or two if you’re out in the sun, but don’t go rogue with short sleeves just yet.
On This Day in Weather History
Sioux Lookout has seen wild swings on March 25th, with the warmest on record reaching a toasty 11.5°C in 1986. Meanwhile, the record low plunged to -33.0°C in 1965. Compared to that, today’s -21°C feels… well, not quite cozy, but manageable.
Weather Trivia – Sioux Lookout Edition:
Did you know Sioux Lookout is one of Ontario’s most “weather diverse” towns? Thanks to its northern location, it can see snow well into May and frost as early as September—meaning locals pretty much never fully unpack the summer clothes.
