Winds of Change Blow Through Greater Sudbury
This Wednesday morning, Sudbury greets the day wrapped in cloud cover and brisk northern winds. At 6:00 AM EDT, the temperature holds at a chilly 5.4°C, while the north wind howls at 25 km/h with gusts up to 39 km/h, giving the air a distinct edge. Humidity is high at 91%, making it feel damper than the thermometer might suggest. The barometric pressure sits at 101.7 kPa and is rising, signalling a clearing trend ahead.
Today’s Forecast – Grey Start, Brighter Finish
It may be cloudy now, but patience pays off—clearing is expected this afternoon, bringing much-needed sunshine to lift the midweek mood. The wind will intensify, coming from the north at 30 km/h and gusting to 50 km/h, so you’ll want to keep your hats and scarves on standby. The high will reach 12°C, and with a UV index of 6 (high), don’t let the cooler air fool you—sun protection is still in order when skies brighten.
As night falls, skies will be partly cloudy, and the northeast wind continues at 20 km/h, gusting up to 40 km/h. Temperatures will take a sharp dive to -4°C, with a wind chill making it feel more like -10 overnight. If you’re stepping out late or walking the dog, dress like it’s still March.
Thursday and Friday – Cold Mornings, Sunny Payoffs
Thursday, May 8, brings sunshine after morning clearing, but it won’t start comfortably. With a morning wind chill of -9°C, it’ll be a chilly commute. Northeast winds continue at 20 km/h with gusts up to 40, and the high will reach 13°C under sunny skies. The UV index remains at a high 6, so don’t forget those sunglasses.
The skies clear completely by night, though temperatures will fall again to -1°C—not quite patio weather yet, unless you’re bundled up.
Friday, May 9, brings the best reward of the week: sunny skies and a high of 19°C. It’s a classic Sudbury spring bounce-back. Friday night stays clear with a more seasonable low of 9°C—finally, a night that doesn’t require mittens.
What to Wear in Sudbury?
This is the week of the weather wardrobe shuffle. Mornings are downright wintery, so think toque, gloves, and a proper wind-blocking jacket. By afternoon, you’ll be peeling off layers, especially on Friday. Sunglasses are a must once the sun breaks through, and with wind gusts lingering, a hood or hat that stays put is your friend.
Historic Weather Note
Sudbury has seen it all on May 7th. The hottest temperature recorded on this day was a balmy 26.6°C in 1976, while the coldest was -6.1°C in 1981. Today’s temperature swings fit right into Sudbury’s tradition of dramatic spring mood swings.
Weather Trivia – Sudbury’s Sudden Swings
Here’s a fun fact: Sudbury’s location on the Canadian Shield contributes to rapid temperature changes. With little moisture retention in the rocky terrain, it cools fast at night and warms quickly by day—hence the “hot-in-the-sun, cold-in-the-shade” vibes that define Sudbury springs.
