Greater Sudbury 7-day weather forecast

Written by:
September 8, 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 23 °C on Wednesday, while the low is 4 °C on Monday. There is expected to be 1 sunny day and rain on 2 days this week.

There are currently no weather alerts.

Monday, September 8

- High of 18 °C, low of 4 °C (42% humidity)
- Partly cloudy with a 0% chance of snow
- High risk of harm from sun exposure (5 UV index)
- Light breeze (18 km/h wind)
- Sunrise at 6:53 AM, sunset at 7:50 PM
1 / 6
Nataliia K // Shutterstock

Tuesday, September 9

- High of 21 °C, low of 7 °C (38% humidity)
- Partly cloudy with a 0% chance of snow
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (24 km/h wind)
- Sunrise at 6:54 AM, sunset at 7:48 PM
2 / 6
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Wednesday, September 10

- High of 23 °C, low of 10 °C (44% humidity)
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (4 UV index)
- Light air (11 km/h wind)
- Sunrise at 6:55 AM, sunset at 7:46 PM
3 / 6
Leonid Ikan // Shutterstock

Thursday, September 11

- High of 20 °C, low of 9 °C (42% humidity)
- Fair with a 0% chance of snow
- High risk of harm from sun exposure (5 UV index)
- Light breeze (13 km/h wind)
- Sunrise at 6:57 AM, sunset at 7:44 PM
4 / 6
Zyabich // Shutterstock

Friday, September 12

- High of 21 °C, low of 6 °C (35% humidity)
- Overcast with a 0% chance of snow
- Light air (8 km/h wind)
- Sunrise at 6:58 AM, sunset at 7:42 PM
5 / 6
Jaromir Chalabala // Shutterstock

Saturday, September 13

- High of 20 °C, low of 11 °C (87% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- Light air (11 km/h wind)
- Sunrise at 6:59 AM, sunset at 7:40 PM
6 / 6
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Sunday, September 14

- High of 18 °C, low of 11 °C (50% humidity)
- Partly cloudy with a 100% chance of rain (0 mm of rain)
- Light breeze (21 km/h wind)
- Sunrise at 7:00 AM, sunset at 7:38 PM
- Last quarter moon

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