Saint John 7-day weather forecast

Written by:
June 8, 2026
ESOlex // Shutterstock

Saint John 7-day weather forecast

created the forecast for Saint John, New Brunswick using data from . This week's high is 29 掳C on Saturday, while the low is 14 掳C on Friday. There are expected to be 2 sunny days and rain on 4 days this week.

There are currently no weather alerts.

Monday, August 3

- High of 20 掳C, low of 17 掳C (96% humidity)
- Overcast with a 100% chance of rain (8 mm of rain)
- Gentle breeze (28 km/h wind)
- Sunrise at 6:11 AM, sunset at 8:49 PM
1 / 6
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Tuesday, August 4

- High of 27 掳C, low of 15 掳C (43% humidity)
- Sunny with a 100% chance of rain (1 mm of rain)
- Very high risk of harm from sun exposure (7 UV index)
- Gentle breeze (30 km/h wind)
- Sunrise at 6:12 AM, sunset at 8:48 PM
2 / 6
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Wednesday, August 5

- High of 25 掳C, low of 16 掳C (48% humidity)
- Sunny with a 0% chance of snow
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (16 km/h wind)
- Sunrise at 6:13 AM, sunset at 8:47 PM
- Last quarter moon
3 / 6
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Thursday, August 6

- High of 25 掳C, low of 16 掳C (65% humidity)
- Mostly cloudy with a 0% chance of snow
- Very high risk of harm from sun exposure (8 UV index)
- Light breeze (15 km/h wind)
- Sunrise at 6:14 AM, sunset at 8:45 PM
4 / 6
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Friday, August 7

- High of 26 掳C, low of 14 掳C (73% humidity)
- Partly cloudy with a 20% chance of rain (0 mm of rain)
- Light air (12 km/h wind)
- Sunrise at 6:15 AM, sunset at 8:44 PM
5 / 6
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Saturday, August 8

- High of 29 掳C, low of 18 掳C (59% humidity)
- Overcast with a 100% chance of rain (3 mm of rain)
- Light air (11 km/h wind)
- Sunrise at 6:16 AM, sunset at 8:42 PM
6 / 6
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Sunday, August 9

- High of 26 掳C, low of 16 掳C (60% humidity)
- Mostly cloudy with a 0% chance of snow
- Light breeze (13 km/h wind)
- Sunrise at 6:18 AM, sunset at 8:41 PM

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