
St. John's 7-day weather forecast
Written by:
August 25, 2025
ESOlex // Shutterstock
St. John's 7-day weather forecast
Stacker created the forecast for St. John's, Newfoundland and Labrador using data from OpenWeather. This week's high is 22 °C on Monday, while the low is 13 °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, August 25
- High of 22 °C, low of 14 °C (62% humidity)- Overcast with a 0% chance of snow
- High risk of harm from sun exposure (6 UV index)
- Light breeze (27 km/h wind)
- Sunrise at 6:10 AM, sunset at 7:55 PM

1 / 6
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Tuesday, August 26
- High of 19 °C, low of 15 °C (99% humidity)
- Overcast with a 100% chance of rain (32 mm of rain)
- Gentle breeze (29 km/h wind)
- Sunrise at 6:11 AM, sunset at 7:53 PM
- Overcast with a 100% chance of rain (32 mm of rain)
- Gentle breeze (29 km/h wind)
- Sunrise at 6:11 AM, sunset at 7:53 PM

2 / 6
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Wednesday, August 27
- High of 22 °C, low of 15 °C (65% humidity)
- Sunny with a 0% chance of snow
- High risk of harm from sun exposure (6 UV index)
- Light breeze (26 km/h wind)
- Sunrise at 6:13 AM, sunset at 7:51 PM
- Sunny with a 0% chance of snow
- High risk of harm from sun exposure (6 UV index)
- Light breeze (26 km/h wind)
- Sunrise at 6:13 AM, sunset at 7:51 PM

3 / 6
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Thursday, August 28
- High of 17 °C, low of 13 °C (90% humidity)
- Overcast with a 99% chance of rain (5 mm of rain)
- Light breeze (21 km/h wind)
- Sunrise at 6:14 AM, sunset at 7:49 PM
- Overcast with a 99% chance of rain (5 mm of rain)
- Light breeze (21 km/h wind)
- Sunrise at 6:14 AM, sunset at 7:49 PM

4 / 6
Canva
Friday, August 29
- High of 20 °C, low of 13 °C (58% humidity)
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (2 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 6:15 AM, sunset at 7:48 PM
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (2 UV index)
- Light breeze (17 km/h wind)
- Sunrise at 6:15 AM, sunset at 7:48 PM

5 / 6
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Saturday, August 30
- High of 17 °C, low of 13 °C (82% humidity)
- Overcast with a 73% 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 6:17 AM, sunset at 7:46 PM
- Overcast with a 73% 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 6:17 AM, sunset at 7:46 PM

6 / 6
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Sunday, August 31
- High of 19 °C, low of 13 °C (54% humidity)
- Mostly sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 6:18 AM, sunset at 7:44 PM
- First quarter moon
- Mostly sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (3 UV index)
- Light breeze (21 km/h wind)
- Sunrise at 6:18 AM, sunset at 7:44 PM
- First quarter moon