Saint John 7-day weather forecast

Written by:
March 23, 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 21 °C on Tuesday, while the low is 4 °C on Saturday. There are expected to be 0 sunny days and rain on 6 days this week.

There are currently no weather alerts.

Monday, May 25

- High of 11 °C, low of 6 °C (98% humidity)
- Overcast with a 100% chance of rain (23 mm of rain)
- Light breeze (24 km/h wind)
- Sunrise at 5:44 AM, sunset at 8:57 PM
1 / 6
Ryzhkov Oleksandr // Shutterstock

Tuesday, May 26

- High of 21 °C, low of 10 °C (56% humidity)
- Partly cloudy with a 0% chance of snow
- High risk of harm from sun exposure (7 UV index)
- Light breeze (16 km/h wind)
- Sunrise at 5:44 AM, sunset at 8:58 PM
2 / 6
Ahmet Naim // Shutterstock

Wednesday, May 27

- High of 20 °C, low of 8 °C (64% humidity)
- Partly cloudy with a 100% chance of rain (2 mm of rain)
- High risk of harm from sun exposure (7 UV index)
- Light breeze (15 km/h wind)
- Sunrise at 5:43 AM, sunset at 8:59 PM
3 / 6
Leonid Ikan // Shutterstock

Thursday, May 28

- High of 15 °C, low of 8 °C (57% humidity)
- Mostly cloudy with a 20% chance of rain (0 mm of rain)
- Light breeze (19 km/h wind)
- Sunrise at 5:42 AM, sunset at 9:00 PM
4 / 6
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Friday, May 29

- High of 11 °C, low of 5 °C (78% humidity)
- Overcast with a 100% chance of rain (2 mm of rain)
- Light breeze (17 km/h wind)
- Sunrise at 5:41 AM, sunset at 9:01 PM
5 / 6
Deborah Kolb // Shutterstock

Saturday, May 30

- High of 9 °C, low of 4 °C (73% humidity)
- Overcast with a 41% chance of rain (0 mm of rain)
- Light breeze (13 km/h wind)
- Sunrise at 5:41 AM, sunset at 9:02 PM
6 / 6
Robert Schlie // Shutterstock

Sunday, May 31

- High of 11 °C, low of 6 °C (77% humidity)
- Overcast with a 30% chance of rain (0 mm of rain)
- Light breeze (18 km/h wind)
- Sunrise at 5:40 AM, sunset at 9:03 PM
- Full moon

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