Saint John 7-day weather forecast

Written by:
January 26, 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 6 °C on Wednesday, while the low is -17 °C on Monday. There are expected to be 2 sunny days, snow on 3 days, and 2 days of rain this week.

There are currently no weather alerts.

Monday, March 2

- High of -8 °C, low of -17 °C (54% humidity)
- Sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (2 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 7:00 AM, sunset at 6:12 PM
1 / 6
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Tuesday, March 3

- High of 2 °C, low of -14 °C (70% humidity)
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (2 UV index)
- Gentle breeze (30 km/h wind)
- Sunrise at 6:59 AM, sunset at 6:13 PM
- Full moon
2 / 6
Jaromir Chalabala // Shutterstock

Wednesday, March 4

- High of 6 °C, low of -1 °C (84% humidity)
- Mostly sunny with a 100% chance of snow (12 mm of snow)
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 6:57 AM, sunset at 6:14 PM
3 / 6
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Thursday, March 5

- High of 1 °C, low of -6 °C (83% humidity)
- Overcast with a 32% chance of snow (0 mm of snow)
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (15 km/h wind)
- Sunrise at 6:55 AM, sunset at 6:16 PM
4 / 6
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Friday, March 6

- High of -4 °C, low of -7 °C (79% humidity)
- Overcast with a 79% chance of snow (1 mm of snow)
- Light breeze (20 km/h wind)
- Sunrise at 6:53 AM, sunset at 6:17 PM
5 / 6
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Saturday, March 7

- High of 3 °C, low of -5 °C (85% humidity)
- Overcast with a 100% chance of rain (2 mm of rain)
- Light breeze (26 km/h wind)
- Sunrise at 6:51 AM, sunset at 6:18 PM
6 / 6
Leszek Glasner // Shutterstock

Sunday, March 8

- High of 6 °C, low of 3 °C (99% humidity)
- Overcast with a 34% chance of rain (1 mm of rain)
- Light breeze (26 km/h wind)
- Sunrise at 6:50 AM, sunset at 6:20 PM

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