St. John's, Canada 14-Day Forecast
Canada 🇨🇦
76°
Overcast right now
Today: high 76°, low 63°
Updated 3 hours ago
St. John's weather for the next 14 days
Thursday, August 27
Sunny High 76° Low 59°Precipitation
6%
· 0.0 in
Max wind
9 mph
Humidity
72%
UV index
3 - Moderate
Sunrise / sunset
06:12 AM / 07:51 PM
Friday, August 28
Sunny High 77° Low 60°Precipitation
9%
· 0.0 in
Max wind
10 mph
Humidity
70%
UV index
6 - High
Sunrise / sunset
06:14 AM / 07:49 PM
Saturday, August 29
Overcast High 71° Low 59°Precipitation
59%
· 0.02 in
Max wind
13 mph
Humidity
86%
UV index
5 - Moderate
Sunrise / sunset
06:15 AM / 07:47 PM
Sunday, August 30
Overcast High 68° Low 56°Precipitation
38%
· 0.01 in
Max wind
13 mph
Humidity
82%
UV index
5 - Moderate
Sunrise / sunset
06:16 AM / 07:45 PM
Monday, August 31
Fog High 68° Low 54°Precipitation
37%
· 0.01 in
Max wind
13 mph
Humidity
80%
UV index
6 - High
Sunrise / sunset
06:18 AM / 07:43 PM
Tuesday, September 1
Patchy rain nearby High 59° Low 51°Precipitation
47%
· 0.02 in
Max wind
16 mph
Humidity
77%
UV index
4 - Moderate
Sunrise / sunset
06:19 AM / 07:41 PM
Wednesday, September 2
Patchy rain nearby High 60° Low 46°Precipitation
17%
· 0.0 in
Max wind
12 mph
Humidity
77%
UV index
4 - Moderate
Sunrise / sunset
06:20 AM / 07:39 PM
Thursday, September 3
Partly Cloudy High 60° Low 45°Precipitation
16%
· 0.0 in
Max wind
8 mph
Humidity
82%
UV index
5 - Moderate
Sunrise / sunset
06:22 AM / 07:37 PM
Friday, September 4
Overcast High 57° Low 49°Precipitation
51%
· 0.02 in
Max wind
13 mph
Humidity
83%
UV index
3 - Moderate
Sunrise / sunset
06:23 AM / 07:35 PM
Saturday, September 5
Light rain shower High 56° Low 50°Precipitation
80%
· 0.1 in
Max wind
19 mph
Humidity
89%
UV index
3 - Moderate
Sunrise / sunset
06:24 AM / 07:33 PM
Sunday, September 6
Sunny High 58° Low 48°Precipitation
11%
· 0.0 in
Max wind
14 mph
Humidity
81%
UV index
4 - Moderate
Sunrise / sunset
06:26 AM / 07:31 PM
Monday, September 7
Sunny High 63° Low 47°Precipitation
9%
· 0.0 in
Max wind
5 mph
Humidity
78%
UV index
5 - Moderate
Sunrise / sunset
06:27 AM / 07:29 PM
Tuesday, September 8
Patchy rain nearby High 54° Low 45°Precipitation
57%
· 0.04 in
Max wind
14 mph
Humidity
80%
UV index
4 - Moderate
Sunrise / sunset
06:28 AM / 07:27 PM
St. John's 14-day outlook: the story
The warmest day of St. John's's 14-day outlook is Friday, August 28 with a high near 77°F (25°C); the coolest night comes Thursday, September 3, dipping to 45°F (7°C). The trend points cooler: week two runs about 13°F below week one. Highs over the next two weeks average 71°F (22°C), about 3°F (2°C) above the typical August high of 68°F (20°C).
Precipitation is most likely on Wednesday 26, Saturday 29, Friday 4, Saturday 5 and beyond; the wettest day looks like Wednesday, August 26 with about 0.17 in (4.4 mm) expected. For the weekend, expect Saturday 71°F (22°C) and overcast / Sunday 68°F (20°C) and overcast.
For typical conditions month by month, see the St. John's climate & average temperatures guide.
St. John's forecast questions
Will it rain in St. John's this week?
The forecast currently shows meaningful precipitation chances on 5 of the next 14 days, peaking around Wednesday, August 26.
What will be the warmest day in St. John's over the next 14 days?
Friday, August 28, with a forecast high near 77°F (25°C).
How accurate is a 14-day forecast for St. John's?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in St. John's by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 33° | 23° | 16 | 6.1 in | 3.9 h/day | 81% |
| February | 33° | 21° | 14 | 5.0 in | 4.8 h/day | 77% |
| March | 35° | 24° | 14 | 5.0 in | 6.5 h/day | 79% |
| April | 41° | 31° | 14 | 4.8 in | 6.6 h/day | 82% |
| May | 49° | 36° | 12 | 3.6 in | 8.6 h/day | 82% |
| June | 58° | 46° | 13 | 4.2 in | 7.8 h/day | 85% |
| July | 66° | 54° | 12 | 3.6 in | 9.0 h/day | 86% |
| August | 68° | 58° | 11 | 3.7 in | 8.9 h/day | 83% |
| September | 62° | 52° | 12 | 4.7 in | 7.2 h/day | 82% |
| October | 53° | 44° | 12 | 3.9 in | 5.6 h/day | 81% |
| November | 45° | 36° | 14 | 6.1 in | 3.9 h/day | 81% |
| December | 37° | 28° | 14 | 5.0 in | 3.2 h/day | 80% |
14-day forecasts nearby