Cold Mornings, Clear Skies, and a Warming Trend in the Nickel City
From -4°C to Sunshine and +10°C — Sudbury’s Forecast Brightens Before Turning Wet
Time to Dust Off the Sunglasses (And Maybe Keep the Umbrella Nearby)
Greater Sudbury, ON — April 11, 2025
It’s a crisp but gorgeous start to the day in Sudbury, with clear skies overhead and the temperature sitting at -4.4°C as of 6:00 AM EDT. Add in a north-northeast wind at 14 km/h, and you’re feeling a wind chill of -10°C, which is more “mid-March” than “mid-April” — but don’t worry, change is on the way.
The humidity is just 52%, meaning the air is dry and biting, while visibility is a wide-open 24 km — great news for commuters and anyone heading out for an early stroll. Barometric pressure sits at 102.3 kPa and rising, which signals a stable and sunny day ahead.
By this afternoon, Sudbury will climb to a high of 9°C, under sunny skies and light winds up to 15 km/h. The UV index is at a moderate 5, so if you’re planning to soak up that sun, a bit of SPF isn’t a bad idea.
Tonight stays clear and cool, with the mercury dropping to -7°C — another reminder that while spring has arrived, it’s still got a few frosty tricks up its sleeve.
Saturday continues the good streak with mainly sunny skies and a slightly warmer high of 10°C. Morning wind chills will once again be close to -10°C, so start the day layered up. Saturday night sees cloudy periods and a more spring-like low of 0°C.
Sunday, however, brings in clouds and cooler conditions, with a high of only 6°C and no sun in sight. By Sunday night, there’s a 40% chance of showers, with a low near +1°C.
Monday is a wet one — expect steady rain throughout the day and a high of 10°C, followed by a 60% chance of lingering showers Monday night and a dip down to -2°C. In short: enjoy the sunshine while it lasts.
What to wear today? Start with winter layers in the morning (yes, gloves still make sense!), but switch to a lighter spring jacket by midday. Sunglasses are a must, and by Sunday, a raincoat or umbrella should be back in your regular rotation.
Historical weather check: Sudbury has seen a record high of 20.6°C and a record low of -15.0°C on this day — so we’re landing right in the moderate middle.
Sudbury weather trivia: The city’s unique geology and elevation make it prone to temperature swings — and its position just north of Georgian Bay often results in clearer skies than neighbouring regions thanks to downslope winds off the Shield. That’s right — even the rocks help with the weather up here.
