From Morning Frost to Easter Sunshine—Sudbury Keeps Spring Guessing
SUDBURY, ON – WEATHER REPORT – April 17, 2025 – Greater Sudbury is off to a brisk start today, but don’t let the chill fool you—things are warming up, albeit with a few soggy speed bumps on the way. With a mix of sunshine, spring rain, and even a flirtation with snow this weekend, the weather’s got something for everyone—except maybe consistency.
Current Conditions: Clear and Cold… For Now
As of 6:00 AM EDT at the Greater Sudbury Airport, the temperature is sitting at a brisk -5.1°C under mainly clear skies. The dew point is -11.1°C, and humidity is at a modest 63%. Winds are light out of the northwest at 5 km/h, giving a wind chill of -7°C. Visibility is excellent at 24 km, and the barometric pressure is 102.2 kPa and rising—a good sign for the start of the day.
Thursday: Bright Skies and Mild Temps
Today will be a classic Sudbury spring day: sunny, calm, and deceptively mild. Winds will remain gentle, up to 15 km/h, with temperatures climbing to a high of 8°C. This morning’s chill will vanish quickly under the sun’s warming gaze, and the UV index reaches a moderate 5, so toss some sunscreen in your day bag if you’re heading out to enjoy the blue skies.
Tonight: Clouds Creep In with a Chance of Rain
Skies stay partly cloudy into the evening, but there’s a 40% chance of rain sneaking in before morning. Temperatures will remain steady, dipping to around 0°C. It’s not cold enough for snow just yet, but things could get a little slick depending on when the rain arrives—watch for patchy wet spots on early morning drives.
Friday: Wet and Warmer
Friday brings periods of rain that will taper off by the afternoon, followed by cloudy skies and a 60% chance of lingering showers. Winds will pick up from the south at 20 km/h before easing later in the day. The high will be a pleasant 10°C, but you’ll need an umbrella or rain jacket handy if you’re heading out. Friday night continues the soggy trend with more periods of rain and a low right around freezing.
Saturday: Cold Front Brings a Flaky Surprise
Saturday is shaping up to be a bit of a backslide into winter-lite. Expect cloudy skies with a 40% chance of snow—yes, snow!—and a high of just +2°C. Whether it sticks or not depends on timing, but it’s a good excuse to delay packing away the snow brush. Saturday night, the skies clear and the temperature takes a deep dive to -9°C. Bundle up if you’re out late for Easter preparations!
Easter Sunday & Monday: A Weather Rebound
Easter Sunday offers a welcome return to sunshine with a high of 7°C and clear skies through the night, dipping to -2°C. Monday starts mild with periods of rain through the day and a high near 7°C. Rain chances ramp up again Monday night, with a 60% chance and a mild low of +3°C.
What to Wear
Today’s a “layers” day—start with something warm for the chilly morning, and shed a layer or two by the sunny afternoon. Keep that raincoat on standby for Friday and Monday, and don’t laugh off the snow boots just yet for Saturday.
Did You Know?
Sudbury has over 330 lakes within its city limits—more than any other municipality in Canada. That much water makes local weather extra sensitive to temperature swings and precipitation changes, especially during spring.
