Cold Morning in the Nickel City
Sudbury, ON – Sunday, April 6, 2025 – Sudburians woke up to crisp, clear skies and a classic northern Ontario chill. At 6:00 AM, the temperature sat at -4.1°C, with a biting wind chill of -11 courtesy of a northwest wind blowing at 21 km/h and gusting up to 31. The dew point of -9.8°C and humidity at 65% means it’s dry out there—but don’t be fooled by the sunny skies, it’s still very much toque weather. Visibility is crystal clear at 24 km, and the pressure stands at 101.5 kPa and rising, signaling a brief calm before snow returns.
Sunshine for Now, But Flurries Are Lurking
Today’s forecast features some deceivingly pleasant weather. The skies will stay clear for most of the day, with the UV index reaching a moderate 4—enough for the sun to make a cameo appearance and trick you into thinking spring is in full bloom. Unfortunately, it’s not. Temperatures will hover around -4°C for much of the day, and by tonight, mainly cloudy skies take over with a few flurries expected before morning. Winds will shift to the south at 20 km/h before calming later this evening. The overnight low will be -6°C, with a wind chill near -10—definitely a hot-chocolate-and-blanket kind of night.
Monday: The Return of the Snow Globe
Mother Nature isn’t quite done with her winter show. Monday will bring 5 to 10 cm of fresh snow, as winds switch to the northeast at 20 km/h gusting to 40. Temperatures will briefly rise to -3°C before dipping back down to -6°C by afternoon. The wind chill will make it feel like -8 in the morning, and a frosty -15 later in the day. With a UV index of just 1, your sunglasses can take a break—but you’ll want those snow boots and mitts back in action.
Monday night stays cloudy with a 40% chance of flurries, and another cold night ahead with a low of -11°C.
Tuesday to Midweek: Slowly Climbing the Thermometer
Tuesday will offer a mix of sun and cloud and a 30% chance of flurries, with a high of -3°C. The temperature remains chilly Tuesday night with a low of -11°C again—seems like winter just keeps hitting snooze on spring.
Finally, Wednesday begins to feel a bit more seasonal, with a mix of sun and cloud and a high of 3°C. Overnight, we dip to -5°C, but hey—we’re moving in the right direction!
Historical Highs and Lows for April 6
Looking back, April 6 has seen both spring and winter extremes. Sudbury’s warmest recorded temperature on this date was a balmy 20.6°C in 1991—talk about false hope! On the flip side, the coldest April 6 brought a bone-chilling -23.3°C back in 1972. Today’s weather sits somewhere in between, holding onto winter’s grip, but not nearly at its worst.
Weather Wardrobe Tip
Dress like it’s still February, folks. A warm winter coat, thermal layers, and something to cover your ears are must-haves today. If you’re heading out in the sunshine, don’t forget some SPF—even the cold sun can still get you.
Sudbury Weather Trivia
Here’s a snowy nugget for your next trivia night: Sudbury averages over 260 cm of snow per year, making it one of the snowiest major cities in Ontario. April alone can deliver surprise snowfalls well into double digits—just like we’re expecting tomorrow!
