Greater Sudbury Forecast: A Bit Damp Today, Brilliant Tomorrow

Grey Start, Gusty Winds – But Brighter Days Ahead

Good morning, Sudbury! The day starts off cloudy and damp-feeling with a temperature of 1.0°C reported at 5:00 AM EDT from the Greater Sudbury Airport. The air is saturated at 97% humidity—perfect for that fog-on-your-glasses moment—and visibility sits at 16 km. The wind is coming in from the west-southwest at 16 km/h, gusting up to 31 km/h, giving the air a sharper edge. The barometric pressure is on the rise at 100.7 kPa, offering a subtle hint that the skies may not stay gloomy forever.

This morning brings a 40 percent chance of showers or drizzle to the region—just enough uncertainty to make you wonder whether that umbrella should come with you (spoiler: it probably should). The winds will build to 20 km/h with gusts up to 40, keeping things brisk. Today’s high will climb to 8°C, and the UV index remains low at 2—so sunscreen can take the morning off.

Tonight: Clearing Late, but Winter Whispers Return

Cloud cover will linger through the evening, but skies are expected to clear after midnight. Winds from the northwest at 20 km/h will gust to 40 km/h before calming down later tonight. The temperature dips to a frosty -3°C overnight, and with the wind chill factored in, it’ll feel closer to -5°C. So yes—those warmer gloves still have a place on your bedside table.

Wednesday: Finally, Some Sunshine

Wednesday is shaping up to be a gem of a spring day. After a cold start with a wind chill of -4°C, the sun will shine bright. Winds will stay light—up to 15 km/h—and the mercury will rise to a welcome high of 13°C. The UV index jumps to 6, which is high, so don’t forget your shades and sunscreen.

Wednesday night brings a shift again, with cloudy periods and a 60 percent chance of rain moving in. The low will stay on the milder side at +4°C.

Rain Returns: Thursday and Friday

Thursday and Friday are looking like déjà vu—mostly cloudy with a 60 percent chance of rain both days. Thursday’s high hits 12°C with a low of 5°C at night, while Friday matches that daytime high but cools to +2°C overnight. So while it won’t be particularly cold, it will be damp. Umbrella and waterproof shoes? Definitely a wise move.

Weekend Watch: Mixed Skies, Showers Possible

Saturday keeps things interesting with a mix of sun and cloud and a 40 percent chance of rain. The high will rise to 14°C, making it a mild day, though you’ll still want to keep a rain jacket close. Saturday night sees cloudy periods with another 40 percent chance of rain and a low near +1°C.

What to Wear: Weather Layering 101

Today starts out chilly and blustery, so bundle up with a windbreaker or light winter jacket. You’ll want something water-resistant too, just in case that drizzle drops by uninvited. Tomorrow is all sunshine and warmth—layers you can peel off will be your best friend. But keep the rain gear on standby for the tail end of the week.

Weather Trivia: Sudbury’s Spring Swings

On April 22, Sudbury’s historical high reached a toasty 24.0°C, set in 1980. Meanwhile, the record low bottomed out at -11.7°C in 1965. So today’s cool and damp conditions? Pretty tame compared to the region’s weather wildcards.