Saint John 7-day weather forecast

Written by:
June 23, 2025
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 27 °C on Wednesday, while the low is 12 °C on Thursday. There are expected to be 2 sunny days and rain on 3 days this week.

There are currently no weather alerts.

Monday, June 23

- High of 25 °C, low of 14 °C (57% humidity)
- Partly sunny with a 0% chance of snow
- Very high risk of harm from sun exposure (8 UV index)
- Light air (11 km/h wind)
- Sunrise at 5:36 AM, sunset at 9:15 PM
1 / 6
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Tuesday, June 24

- High of 23 °C, low of 13 °C (69% humidity)
- Fair with a 100% chance of rain (6 mm of rain)
- Very high risk of harm from sun exposure (9 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 5:37 AM, sunset at 9:16 PM
2 / 6
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Wednesday, June 25

- High of 27 °C, low of 15 °C (37% humidity)
- Sunny with a 0% chance of snow
- Very high risk of harm from sun exposure (9 UV index)
- Light breeze (20 km/h wind)
- Sunrise at 5:37 AM, sunset at 9:16 PM
- New moon
3 / 6
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Thursday, June 26

- High of 23 °C, low of 12 °C (45% humidity)
- Overcast with a 0% chance of snow
- Very high risk of harm from sun exposure (9 UV index)
- Light air (9 km/h wind)
- Sunrise at 5:37 AM, sunset at 9:16 PM
4 / 6
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Friday, June 27

- High of 23 °C, low of 12 °C (45% humidity)
- Mostly cloudy with a 0% chance of snow
- Moderate risk of harm from sun exposure (2 UV index)
- Light breeze (13 km/h wind)
- Sunrise at 5:38 AM, sunset at 9:16 PM
5 / 6
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Saturday, June 28

- High of 16 °C, low of 12 °C (99% humidity)
- Overcast with a 100% chance of rain (24 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 5:38 AM, sunset at 9:16 PM
6 / 6
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Sunday, June 29

- High of 18 °C, low of 12 °C (97% humidity)
- Overcast with a 99% chance of rain (2 mm of rain)
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 5:39 AM, sunset at 9:15 PM

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