
St. John's 7-day weather forecast
Written by:
September 8, 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 21 °C on Monday, while the low is 8 °C on Sunday. There is expected to be 1 sunny day and rain on 3 days this week.
There are currently no weather alerts.
Monday, September 8
- High of 21 °C, low of 16 °C (91% humidity)- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (4 UV index)
- Light breeze (27 km/h wind)
- Sunrise at 6:29 AM, sunset at 7:28 PM

1 / 6
Leonid Ikan // Shutterstock
Tuesday, September 9
- High of 17 °C, low of 12 °C (55% humidity)
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (23 km/h wind)
- Sunrise at 6:30 AM, sunset at 7:26 PM
- Overcast with a 0% chance of snow
- Moderate risk of harm from sun exposure (5 UV index)
- Light breeze (23 km/h wind)
- Sunrise at 6:30 AM, sunset at 7:26 PM

2 / 6
Canva
Wednesday, September 10
- High of 17 °C, low of 10 °C (55% humidity)
- Sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (5 UV index)
- Light air (12 km/h wind)
- Sunrise at 6:31 AM, sunset at 7:24 PM
- Sunny with a 0% chance of snow
- Moderate risk of harm from sun exposure (5 UV index)
- Light air (12 km/h wind)
- Sunrise at 6:31 AM, sunset at 7:24 PM

3 / 6
thaweerat // Shutterstock
Thursday, September 11
- High of 14 °C, low of 11 °C (93% humidity)
- Overcast with a 100% chance of rain (6 mm of rain)
- Light breeze (15 km/h wind)
- Sunrise at 6:33 AM, sunset at 7:22 PM
- Overcast with a 100% chance of rain (6 mm of rain)
- Light breeze (15 km/h wind)
- Sunrise at 6:33 AM, sunset at 7:22 PM

4 / 6
John Cartwright // Shutterstock
Friday, September 12
- High of 19 °C, low of 12 °C (83% humidity)
- Overcast with a 44% chance of rain (1 mm of rain)
- Gentle breeze (30 km/h wind)
- Sunrise at 6:34 AM, sunset at 7:19 PM
- Overcast with a 44% chance of rain (1 mm of rain)
- Gentle breeze (30 km/h wind)
- Sunrise at 6:34 AM, sunset at 7:19 PM

5 / 6
gillmar // Shutterstock
Saturday, September 13
- High of 13 °C, low of 9 °C (55% humidity)
- Partly cloudy with a 34% chance of rain (1 mm of rain)
- Gentle breeze (32 km/h wind)
- Sunrise at 6:35 AM, sunset at 7:17 PM
- Partly cloudy with a 34% chance of rain (1 mm of rain)
- Gentle breeze (32 km/h wind)
- Sunrise at 6:35 AM, sunset at 7:17 PM

6 / 6
Nataliia K // Shutterstock
Sunday, September 14
- High of 15 °C, low of 8 °C (54% humidity)
- Partly cloudy with a 0% chance of snow
- Light breeze (19 km/h wind)
- Sunrise at 6:37 AM, sunset at 7:15 PM
- Last quarter moon
- Partly cloudy with a 0% chance of snow
- Light breeze (19 km/h wind)
- Sunrise at 6:37 AM, sunset at 7:15 PM
- Last quarter moon