St. John's, Canada 14-Day Forecast
Canada 🇨🇦
69°
Patchy rain nearby right now
Today: high 70°, low 59°
Updated 5 hours ago
St. John's weather for the next 14 days
Thursday, August 13
Sunny High 73° Low 57°Precipitation
8%
· 0.0 in
Max wind
16 mph
Humidity
75%
UV index
6 - Moderate
Sunrise / sunset
05:54 AM / 08:16 PM
Friday, August 14
Light rain shower High 66° Low 59°Precipitation
89%
· 0.28 in
Max wind
16 mph
Humidity
93%
UV index
6 - Moderate
Sunrise / sunset
05:55 AM / 08:15 PM
Saturday, August 15
Patchy rain nearby High 63° Low 55°Precipitation
49%
· 0.02 in
Max wind
13 mph
Humidity
88%
UV index
2 - Low
Sunrise / sunset
05:56 AM / 08:13 PM
Sunday, August 16
Sunny High 67° Low 53°Precipitation
11%
· 0.0 in
Max wind
9 mph
Humidity
76%
UV index
5 - Moderate
Sunrise / sunset
05:58 AM / 08:11 PM
Monday, August 17
Partly Cloudy High 68° Low 53°Precipitation
36%
· 0.02 in
Max wind
12 mph
Humidity
78%
UV index
5 - Moderate
Sunrise / sunset
05:59 AM / 08:10 PM
Tuesday, August 18
Patchy rain nearby High 64° Low 58°Precipitation
92%
· 0.85 in
Max wind
22 mph
Humidity
95%
UV index
5 - Moderate
Sunrise / sunset
06:00 AM / 08:08 PM
Wednesday, August 19
Sunny High 69° Low 53°Precipitation
9%
· 0.0 in
Max wind
10 mph
Humidity
78%
UV index
6 - High
Sunrise / sunset
06:02 AM / 08:06 PM
Thursday, August 20
Sunny High 72° Low 55°Precipitation
6%
· 0.0 in
Max wind
8 mph
Humidity
71%
UV index
6 - High
Sunrise / sunset
06:03 AM / 08:04 PM
Friday, August 21
Sunny High 67° Low 55°Precipitation
15%
· 0.0 in
Max wind
19 mph
Humidity
82%
UV index
5 - Moderate
Sunrise / sunset
06:04 AM / 08:02 PM
Saturday, August 22
Sunny High 67° Low 54°Precipitation
67%
· 0.14 in
Max wind
17 mph
Humidity
78%
UV index
5 - Moderate
Sunrise / sunset
06:06 AM / 08:00 PM
Sunday, August 23
Sunny High 65° Low 52°Precipitation
6%
· 0.0 in
Max wind
14 mph
Humidity
69%
UV index
5 - Moderate
Sunrise / sunset
06:07 AM / 07:59 PM
Monday, August 24
Partly Cloudy High 66° Low 52°Precipitation
17%
· 0.0 in
Max wind
17 mph
Humidity
80%
UV index
5 - Moderate
Sunrise / sunset
06:08 AM / 07:57 PM
Tuesday, August 25
Sunny High 63° Low 49°Precipitation
7%
· 0.0 in
Max wind
14 mph
Humidity
72%
UV index
5 - Moderate
Sunrise / sunset
06:10 AM / 07:55 PM
St. John's 14-day outlook: the story
The warmest day of St. John's's 14-day outlook is Thursday, August 13 with a high near 73°F (23°C); the coolest night comes Tuesday, August 25, dipping to 49°F (10°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 67°F (20°C), right in line with the typical August high of 68°F (20°C).
Precipitation is most likely on Wednesday 12, Friday 14, Tuesday 18, Saturday 22; the wettest day looks like Tuesday, August 18 with about 0.85 in (21.6 mm) expected. For the weekend, expect Saturday 63°F (17°C) and patchy rain nearby / Sunday 67°F (20°C) and sunny.
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 4 of the next 14 days, peaking around Tuesday, August 18.
What will be the warmest day in St. John's over the next 14 days?
Thursday, August 13, with a forecast high near 73°F (23°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