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Saint John 7-day weather forecast
Stacker created the forecast for Saint John, New Brunswick using data from OpenWeather. This week's high is 25 °C on Monday, while the low is 3 °C on Sunday. There are expected to be 5 sunny days and precipitation on 0 days this week.
There are currently no weather alerts.
Monday, September 15
- High of 25 °C, low of 9 °C (46% humidity)- Sunny with a 0% chance of snow
- High risk of harm from sun exposure (5 UV index)
- Light air (10 km/h wind)
- Sunrise at 7:03 AM, sunset at 7:35 PM

1 / 6
Onishchenko Natalya // Shutterstock
Tuesday, September 16
- High of 23 °C, low of 11 °C (42% humidity)
- Sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (5 UV index)
- Light air (11 km/h wind)
- Sunrise at 7:04 AM, sunset at 7:34 PM
- Sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (5 UV index)
- Light air (11 km/h wind)
- Sunrise at 7:04 AM, sunset at 7:34 PM

2 / 6
LeManna // Shutterstock
Wednesday, September 17
- High of 21 °C, low of 11 °C (50% humidity)
- Sunny with a 0% chance of snow
- High risk of harm from sun exposure (5 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 7:05 AM, sunset at 7:32 PM
- Sunny with a 0% chance of snow
- High risk of harm from sun exposure (5 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 7:05 AM, sunset at 7:32 PM

3 / 6
Leonid Ikan // Shutterstock
Thursday, September 18
- High of 19 °C, low of 12 °C (74% humidity)
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 7:06 AM, sunset at 7:30 PM
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 7:06 AM, sunset at 7:30 PM

4 / 6
Leonid Ikan // Shutterstock
Friday, September 19
- High of 20 °C, low of 12 °C (46% humidity)
- Mostly cloudy with a 0% chance of snow
- Light breeze (21 km/h wind)
- Sunrise at 7:07 AM, sunset at 7:28 PM
- Mostly cloudy with a 0% chance of snow
- Light breeze (21 km/h wind)
- Sunrise at 7:07 AM, sunset at 7:28 PM

5 / 6
Nazarova Mariia // Shutterstock
Saturday, September 20
- High of 15 °C, low of 7 °C (38% humidity)
- Sunny with a 0% chance of snow
- Light breeze (24 km/h wind)
- Sunrise at 7:09 AM, sunset at 7:26 PM
- Sunny with a 0% chance of snow
- Light breeze (24 km/h wind)
- Sunrise at 7:09 AM, sunset at 7:26 PM

6 / 6
liseykina // Shutterstock
Sunday, September 21
- High of 16 °C, low of 3 °C (31% humidity)
- Sunny with a 0% chance of snow
- Light breeze (20 km/h wind)
- Sunrise at 7:10 AM, sunset at 7:24 PM
- New moon
- Sunny with a 0% chance of snow
- Light breeze (20 km/h wind)
- Sunrise at 7:10 AM, sunset at 7:24 PM
- New moon