Greater Sudbury 7-day weather forecast

Written by:
August 4, 2025
ESOlex // Shutterstock

Greater Sudbury 7-day weather forecast

Stacker created the forecast for Greater Sudbury, Ontario using data from OpenWeather. This week's high is 30 °C on Sunday, while the low is 13 °C on Tuesday. There are expected to be 0 sunny days and rain on 3 days this week.

Environment Canada, the Province of Ontario has issued an air quality until Monday at 12:58 PM.

Monday, August 4

- High of 24 °C, low of 14 °C (53% humidity)
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (4 UV index)
- Light air (10 km/h wind)
- Sunrise at 6:08 AM, sunset at 8:51 PM
1 / 6
Stepan Bessmelnitsin // Shutterstock

Tuesday, August 5

- High of 27 °C, low of 13 °C (38% humidity)
- Partly cloudy with a 0% chance of snow
- Moderate risk of harm from sun exposure (5 UV index)
- Light air (11 km/h wind)
- Sunrise at 6:10 AM, sunset at 8:49 PM
2 / 6
Gaschwald // Shutterstock

Wednesday, August 6

- High of 29 °C, low of 15 °C (41% humidity)
- Overcast with a 0% chance of snow
- High risk of harm from sun exposure (6 UV index)
- Light air (11 km/h wind)
- Sunrise at 6:11 AM, sunset at 8:48 PM
3 / 6
Valeriy Boyarskiy // Shutterstock

Thursday, August 7

- High of 28 °C, low of 19 °C (40% humidity)
- Mostly cloudy with a 0% chance of snow
- High risk of harm from sun exposure (6 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 6:12 AM, sunset at 8:46 PM
4 / 6
Jaromir Chalabala // Shutterstock

Friday, August 8

- High of 28 °C, low of 17 °C (58% humidity)
- Overcast with a 100% chance of rain (6 mm of rain)
- Light breeze (21 km/h wind)
- Sunrise at 6:13 AM, sunset at 8:45 PM
5 / 6
Leszek Glasner // Shutterstock

Saturday, August 9

- High of 28 °C, low of 20 °C (78% humidity)
- Mostly cloudy with a 100% chance of rain (4 mm of rain)
- Light breeze (15 km/h wind)
- Sunrise at 6:15 AM, sunset at 8:43 PM
- Full moon
6 / 6
gillmar // Shutterstock

Sunday, August 10

- High of 30 °C, low of 19 °C (50% humidity)
- Partly cloudy with a 86% chance of rain (1 mm of rain)
- Light breeze (24 km/h wind)
- Sunrise at 6:16 AM, sunset at 8:42 PM

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