Saint John 7-day weather forecast

Written by:
June 8, 2026
ESOlex // Shutterstock

Saint John 7-day weather forecast

Stacker created the forecast for Saint John, New Brunswick using data from OpenWeather. This week's high is 23 °C on Tuesday, while the low is 9 °C on Thursday. There are expected to be 4 sunny days and rain on 6 days this week.

There are currently no weather alerts.

Monday, June 15

- High of 15 °C, low of 12 °C (89% humidity)
- Overcast with a 100% chance of rain (6 mm of rain)
- Moderate risk of harm from sun exposure (2 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 5:35 AM, sunset at 9:13 PM
- New moon
1 / 6
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Tuesday, June 16

- High of 23 °C, low of 13 °C (46% humidity)
- Mostly sunny with a 89% chance of rain (0 mm of rain)
- Very high risk of harm from sun exposure (7 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 5:35 AM, sunset at 9:14 PM
2 / 6
Onishchenko Natalya // Shutterstock

Wednesday, June 17

- High of 23 °C, low of 11 °C (46% humidity)
- Mostly sunny with a 0% chance of snow
- Very high risk of harm from sun exposure (7 UV index)
- Light breeze (18 km/h wind)
- Sunrise at 5:35 AM, sunset at 9:14 PM
3 / 6
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Thursday, June 18

- High of 16 °C, low of 9 °C (74% humidity)
- Overcast with a 100% chance of rain (17 mm of rain)
- High risk of harm from sun exposure (6 UV index)
- Light breeze (20 km/h wind)
- Sunrise at 5:35 AM, sunset at 9:14 PM
4 / 6
Marian Weyo // Shutterstock

Friday, June 19

- High of 19 °C, low of 12 °C (74% humidity)
- Overcast with a 100% chance of rain (4 mm of rain)
- Light breeze (19 km/h wind)
- Sunrise at 5:36 AM, sunset at 9:15 PM
5 / 6
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Saturday, June 20

- High of 21 °C, low of 11 °C (56% humidity)
- Fair with a 100% chance of rain (2 mm of rain)
- Light breeze (20 km/h wind)
- Sunrise at 5:36 AM, sunset at 9:15 PM
6 / 6
Pablesku // Shutterstock

Sunday, June 21

- High of 19 °C, low of 11 °C (56% humidity)
- Sunny with a 100% chance of rain (2 mm of rain)
- Light breeze (18 km/h wind)
- Sunrise at 5:36 AM, sunset at 9:15 PM
- First quarter moon

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