Spring Sunshine Opens the Day, but Rain Clouds Are Lurking for Sudbury
SUDBURY – April 23, 2025 – The Nickel City is off to a crisp but cheerful start this morning. At 7:00 AM, Greater Sudbury Airport is reporting a sunny -1.6°C with a whisper of wind from the north-northwest at 4 km/h. That breeze is just enough to knock the temperature down a notch, with a wind chill of -3°C making it feel like Sudbury’s flirting with winter’s ghost. The barometric pressure is on the rise at 102.5 kPa—good news for stability, though that won’t last long. Humidity is hovering at a high 99%, so the air feels damp even in the chill. Visibility is a crystal-clear 32 kilometres—great for spotting both sunshine and incoming clouds.
Despite the frosty start, Sudbury will warm nicely today under mainly sunny skies, climbing to a high of 13°C. Winds will remain light, topping out around 15 km/h, and the UV index will hit a “high” rating of 6—so if you’re enjoying the sun, don’t forget that sunscreen!
Tonight: Showers Move In Late
The evening starts off calm, with just a few clouds on the horizon. But don’t let the early calm fool you—clouds will build up late this evening, bringing with them a 60 percent chance of showers overnight. The low will be a much milder +4°C, so at least you can retire your toque for now.
Looking Ahead: Rain on Rotation
Thursday begins with clouds and a 60 percent chance of showers in the morning, though temperatures are headed up to a spring-friendly 16°C. Rain chances taper off a bit by Thursday night with a low of 5°C and a 30 percent chance of more wet weather.
Friday brings more cloud cover and another 60 percent chance of rain throughout the day, with a slightly cooler high of 12°C. The wet pattern sticks around Friday night, again with a 60 percent chance of rain and a low of +2°C.
Saturday may bring a reprieve with a mix of sun and cloud, though there’s still a 40 percent chance of rain, and a high of 14°C. The same slim chance of showers lingers through the night with a low of +1°C.
Sunday currently looks like the winner of the weekend forecast, bringing a pleasant mix of sun and cloud with a high of 16°C and a quiet night to follow with a low of +4°C.
Wardrobe Whispers from the Weather Desk
Bundle up this morning with a warm coat, gloves, and maybe a coffee that doubles as a hand warmer. By midday, layers will serve you well as things thaw out. Tonight through Friday calls for a trusty rain jacket and waterproof footwear—Sudbury’s skies are clearly in their feelings this week.
Sudbury Weather Trivia: Did You Know?
On April 23, Sudbury’s historic high was a toasty 25.5°C, recorded back in 1990. On the flip side, the coldest temperature recorded for this date was a bone-chilling -9.6°C in 1972. So if you’re not thrilled with -1.6°C this morning, just remember—it could be much frostier.
