Northern Ontario’s Weather Whiplash: Sioux Lookout and Pickle Lake Set for a Wild Long Weekend Ride

SIOUX LOOKOUT – WEATHER REPORT – If you’re packing for the Victoria Day long weekend in Sioux Lookout and Pickle Lake, better make it a suitcase of everything. After a stretch of humid days and smoky skies, the forecast is taking a classic northern Ontario turn: from muggy and stormy today to frosty and possibly flurry-filled by Saturday night.

At 5:10 AM CDT, Sioux Lookout Airport reported mostly cloudy skies and a damp 15.1°C. With the humidity at a hefty 91%, and a dew point of 13.6°C, the air feels thick and close. Winds are from the southeast at 11 km/h, and visibility is a crisp 24 km for now, but don’t let that fool you—the weather is brewing.

From Humid and Wet to Cold and Cloudy

Today will stay cloudy with a 40 percent chance of showers and the risk of a thunderstorm early this morning. Winds will increase from the east at 30 km/h, gusting to 50 km/h, pushing in more unsettled weather. The high will hit 21°C, with a moderate UV index of 5—though any sun will be scarce.

Tonight will remain mostly cloudy with a 40 percent chance of showers early in the evening, turning to steadier rain after midnight. Winds will roar from the east at 40 km/h, gusting to 60 km/h, before easing to southeast 20 km/h, gusting to 40 km/h, later in the night. The low will dip to 11°C.

Friday will feature steady showers, with gusty southeast winds at 30 km/h, reaching up to 50 km/h. The high will cool to 18°C, and the UV index will stay low at 2. But the real twist comes Friday night, as the mercury plunges to zero degrees with a 40 percent chance of rain showers or—brace yourself—flurries.

Saturday will continue to toy with the seasons, bringing a mix of sun and cloud with a 40 percent chance of rain showers or flurries, and a chilly high of 8°C. The night will see cloudy periods and a low of -1°C.

Sunday will keep things dreary with cloudy skies and a high of just 9°C, and the night will hold onto the cool pattern with cloudy periods and a low around the freezing mark.

Finally, Victoria Day Monday will deliver a well-deserved burst of sunshine, with a pleasant high of 20°C—the warmest of the weekend, by far. Monday night will stay clear with a low of 5°C.

Camper’s Advisory: Prepare for Springtime Confusion

Outdoor enthusiasts, be ready for anything: thunderstorms, rain, frost, and even the odd snowflake are all on the table between now and Saturday night. Be sure to pack warm layers, rain gear, and keep an eye on the skies, especially Friday night into Saturday when overnight lows dip below freezing.

Sioux Lookout Weather Trivia

Did you know? Sioux Lookout has seen snow on Victoria Day weekend before—most recently in 2013 when residents woke to a frosty blanket of May snow. This year may flirt with that frosty legacy once again.