May 21 2024 – Greater Sudbury Weather Outlook Clouds and Chances of Rain

Netnewsledger Weather

Good morning, Greater Sudbury! As we begin Tuesday, May 21, 2024, the weather is starting off cloudy with mild temperatures. Prepare for a day with variable cloudiness and a chance of showers. Here’s a comprehensive look at today’s weather and what to expect in the coming days.

Today’s Weather Overview

Current Conditions

As of 5:00 AM EDT, observed at Greater Sudbury Airport:

  • Temperature: 15.2°C
  • Wind: North at 5 km/h
  • Pressure: 101.2 kPa (rising)
  • Humidity: 63%
  • Dew Point: 8.1°C
  • Visibility: 24 km


For today, expect mainly cloudy skies with a 40 percent chance of showers this morning. The high will reach 24°C, but with the humidex, it will feel more like 29°C. The UV index is high at 7, so take necessary precautions if you’re outdoors.


Tonight will start partly cloudy, becoming cloudier near midnight with a 30 percent chance of showers overnight. There is also a risk of a thunderstorm. Winds will shift to the south, reaching 20 km/h and gusting to 40 km/h before morning. The low will be around 16°C.

Tomorrow’s Forecast

Expected Conditions

Wednesday, May 22, 2024

  • Daytime: Cloudy skies with a 60 percent chance of showers in the morning, along with a risk of thunderstorms. Winds will be southeast at 20 km/h, gusting to 40 km/h, and shifting to southwest at 40 km/h, gusting to 60 km/h late in the morning. The high will be 26°C, with a humidex of 29. The UV index will be high at 6.
  • Nighttime: The skies will clear, with a low temperature of 10°C.

Thursday, May 23, 2024

  • Daytime: Cloudy with a 40 percent chance of showers. The high will be 16°C.
  • Nighttime: Cloudy periods with a 30 percent chance of showers. The low will be 6°C.

Wardrobe Recommendations

  • Today: Light layers are ideal due to the humidex. Don’t forget your sunscreen and a hat given the high UV index. Carry an umbrella or raincoat for the potential showers.
  • Tomorrow: Wear waterproof clothing and layers to adjust to the varying temperatures and windy conditions. Prepare for possible thunderstorms.
  • Thursday: Dress warmly with a waterproof jacket for the cooler temperatures and potential showers.

Weather Trivia

Did you know that Greater Sudbury’s weather is influenced by its unique geography? The city’s numerous lakes and rugged terrain can create microclimates, leading to significant variations in weather conditions over short distances. This makes forecasting here particularly interesting and sometimes challenging!

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