Greater Sudbury Weather Forecast – Cloudy Conditions Now, But a Warm-Up Is on the Way
A Cool, Cloud-Covered Start With Spotty Showers Possible
Greater Sudbury, ON – Saturday, May 24, 2025: Sudbury is easing into the weekend under cloudy skies and damp morning air. At 6:00 AM from the Greater Sudbury Airport, the temperature sits at 7.2°C, with humidity at 93% and a light north wind at 14 km/h, adding a subtle chill to the morning. The dew point is 6.2°C, meaning there’s plenty of moisture in the air — and with pressure rising at 101.7 kPa, conditions are starting to stabilize. Visibility is excellent at 24 km, so it’s a grey but clear start to the day.
Today’s forecast remains cloudy, with a 40% chance of showers, especially through the morning and early afternoon. Winds from the north will increase to 20 km/h, then ease up later this morning. The temperature will climb to a high of 13°C, and the UV index is a moderate 3, so while there won’t be much sun, it can still sneak through the clouds.
Evening Showers and a Mild Night
Tonight, expect continued cloudy skies with a 30% chance of showers this evening and after midnight. The low will hold steady around 7°C, so it’ll be a relatively mild night with no frost worries — just keep a light jacket or rain shell on standby if you’re heading out.
Sunday: Slowly Brightening with a Boost in Warmth
Sunday starts out mainly cloudy with another 30% chance of showers, especially through the morning and early afternoon. But don’t cancel your plans just yet — skies are expected to clear later in the afternoon, and temperatures will finally warm up to a pleasant high of 19°C. The UV index remains at 3, so a bit of sunscreen might still be in order once the sun peeks out. Sunday night will bring cloudy periods and a low of 8°C, wrapping up a mixed weekend with a calm, dry note.
Monday Brings Sunshine and Warmth
Monday ushers in more classic spring weather with a mix of sun and cloud and a high of 21°C — perfect for getting outdoors, tending to your garden, or just enjoying your coffee on the patio. Monday night remains mild with cloudy periods and a low of 9°C.
What to Wear?
A windbreaker or waterproof layer is your best bet for Saturday. With cool air and scattered showers, layers will keep you warm and dry. Sunday’s forecast means you’ll want an umbrella handy early on, but be ready to swap it for sunglasses by late afternoon. Monday? T-shirts, light pants, and sunscreen should do the trick.
Historic Temperatures for May 24
On this day in Sudbury’s weather history, the record high reached 28.9°C, while the record low dropped to -2.5°C. Today’s 13°C high may not break records, but it lands us comfortably within spring’s moody middle ground.
Sudbury Weather Trivia
Did you know Greater Sudbury is home to over 300 lakes within city limits — more than any other municipality in Canada? That means when it rains here, the landscape doesn’t just soak it up, it reflects it! On days like today, with cloud cover and showers in the mix, the city becomes a mirror of the sky.
