From Drizzle to Dazzling: Sudbury’s Victoria Day Weekend Offers a Mix of Spring Surprises

SUDBURY – WEATHER REPORT – The weather forecast for Sudbury heading into the Victoria Day long weekend is shaping up to be a tale of two seasons—muggy and damp to start, with a chance of thunderstorms, before transitioning into a crisp, sunny finale just in time for Monday festivities.

At 6:00 AM EDT, the Greater Sudbury Airport is reporting mostly cloudy skies and a humid 14.1°C. The dew point is close behind at 13.1°C, with humidity at a sticky 94%. Winds are out of the southeast at 11 km/h, and the barometric pressure is at 101.1 kPa, but trending downward—a clear sign that the unsettled weather isn’t done yet.

Extended Forecast: Pack the Umbrella and the Sunglasses

Today will remain mainly cloudy with a 40 percent chance of showers or drizzle. Fog patches should finally clear this morning, allowing temperatures to climb to a muggy 23°C, with a humidex making it feel closer to 26°C. The UV index will be high at 7, so keep the sunscreen close even with clouds overhead.

Tonight will bring a partly cloudy sky with a 40 percent chance of showers. A few more showers will begin before morning, along with the risk of a thunderstorm in the overnight hours. The overnight low will be a mild 14°C.

Friday will start with lingering showers ending in the morning, followed by mainly cloudy skies and a 40 percent chance of afternoon showers. There is still a risk of a thunderstorm early in the day. Winds will shift to the southwest at 20 km/h in the afternoon, helping temperatures climb to a warm 25°C, with a humidex of 27°C. The UV index will sit at a moderate 5. Friday night will bring increasing cloudiness and a cooling low of 12°C.

Saturday will remain cloudy with a 40 percent chance of showers and a more seasonable high of 18°C. The night will be cool, with continued clouds and a low dipping to just above freezing at 1°C.

Sunday will reward patient weekenders with sunshine and a brisk high of 11°C, followed by a clear and crisp night with a low of 1°C.

Victoria Day Monday will bring the most pleasant day of the weekend—sunny skies and a warm high of 19°C. The night will remain clear with a milder low of 5°C.

Outdoor Plans? Be Prepared for Sudbury’s Spring Mood Swings

Whether you’re camping at Killarney, heading to Ramsey Lake, or enjoying backyard BBQs, this weekend’s weather will require flexibility. Friday and Saturday will be humid but wet, while Sunday and Monday promise sunshine and fresh spring air—perfect for fireworks or that long-awaited paddle.

Sudbury Weather Trivia

Did you know? Sudbury holds the Ontario record for the largest May temperature swing in a single weekend—from 29°C on a Friday to -2°C and snow by Sunday morning in 2002. So yes, this year’s forecast is really just Sudbury doing its usual spring thing.