St. John's, Antigua and Barbuda 14-Day Forecast
84°
Sunny right now
Today: high 84°, low 81°
Updated 1 hour ago
St. John's weather for the next 14 days
Thursday, August 27
Patchy rain nearby High 84° Low 81°Precipitation
38%
· 0.02 in
Max wind
18 mph
Humidity
75%
UV index
11 - Very High
Sunrise / sunset
05:53 AM / 06:24 PM
Friday, August 28
Patchy rain nearby High 84° Low 81°Precipitation
62%
· 0.05 in
Max wind
22 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
05:53 AM / 06:24 PM
Saturday, August 29
Patchy rain nearby High 84° Low 81°Precipitation
39%
· 0.02 in
Max wind
20 mph
Humidity
81%
UV index
7 - High
Sunrise / sunset
05:53 AM / 06:23 PM
Sunday, August 30
Patchy rain nearby High 85° Low 81°Precipitation
80%
· 0.47 in
Max wind
20 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
05:53 AM / 06:22 PM
Monday, August 31
Light rain shower High 82° Low 80°Precipitation
85%
· 0.38 in
Max wind
17 mph
Humidity
80%
UV index
7 - High
Sunrise / sunset
05:53 AM / 06:21 PM
Tuesday, September 1
Patchy rain nearby High 84° Low 81°Precipitation
19%
· 0.0 in
Max wind
17 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
05:53 AM / 06:21 PM
Wednesday, September 2
Patchy rain nearby High 84° Low 81°Precipitation
42%
· 0.02 in
Max wind
18 mph
Humidity
81%
UV index
7 - High
Sunrise / sunset
05:53 AM / 06:20 PM
Thursday, September 3
Patchy rain nearby High 84° Low 81°Precipitation
19%
· 0.0 in
Max wind
19 mph
Humidity
82%
UV index
7 - High
Sunrise / sunset
05:54 AM / 06:19 PM
Friday, September 4
Patchy rain nearby High 84° Low 81°Precipitation
27%
· 0.01 in
Max wind
20 mph
Humidity
81%
UV index
7 - High
Sunrise / sunset
05:54 AM / 06:18 PM
Saturday, September 5
Patchy rain nearby High 84° Low 81°Precipitation
82%
· 0.3 in
Max wind
17 mph
Humidity
80%
UV index
6 - High
Sunrise / sunset
05:54 AM / 06:17 PM
Sunday, September 6
Patchy rain nearby High 84° Low 81°Precipitation
75%
· 0.08 in
Max wind
19 mph
Humidity
82%
UV index
6 - High
Sunrise / sunset
05:54 AM / 06:17 PM
Monday, September 7
Patchy rain nearby High 85° Low 81°Precipitation
36%
· 0.01 in
Max wind
17 mph
Humidity
75%
UV index
6 - High
Sunrise / sunset
05:54 AM / 06:16 PM
Tuesday, September 8
Patchy rain nearby High 85° Low 81°Precipitation
57%
· 0.05 in
Max wind
20 mph
Humidity
75%
UV index
7 - High
Sunrise / sunset
05:54 AM / 06:15 PM
St. John's 14-day outlook: the story
The warmest day of St. John's's 14-day outlook is Sunday, August 30 with a high near 85°F (29°C); the coolest night comes Monday, August 31, dipping to 80°F (27°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 84°F (29°C), right in line with the typical August high of 86°F (30°C).
Precipitation is most likely on Friday 28, Sunday 30, Monday 31, Saturday 5 and beyond; the wettest day looks like Sunday, August 30 with about 0.47 in (12.0 mm) expected. For the weekend, expect Saturday 84°F (29°C) and patchy rain nearby / Sunday 85°F (29°C) and patchy rain nearby.
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 6 of the next 14 days, peaking around Sunday, August 30.
What will be the warmest day in St. John's over the next 14 days?
Sunday, August 30, with a forecast high near 85°F (29°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 | 81° | 75° | 15 | 1.6 in | 10.7 h/day | 72% |
| February | 81° | 75° | 14 | 2.0 in | 10.9 h/day | 71% |
| March | 82° | 75° | 15 | 1.8 in | 11.5 h/day | 70% |
| April | 83° | 76° | 16 | 2.1 in | 11.7 h/day | 72% |
| May | 84° | 78° | 16 | 2.3 in | 11.5 h/day | 73% |
| June | 85° | 79° | 16 | 2.3 in | 11.6 h/day | 73% |
| July | 86° | 79° | 20 | 3.1 in | 11.7 h/day | 75% |
| August | 86° | 79° | 21 | 4.2 in | 11.4 h/day | 76% |
| September | 86° | 79° | 21 | 4.4 in | 11.0 h/day | 77% |
| October | 85° | 79° | 20 | 4.3 in | 10.6 h/day | 77% |
| November | 84° | 78° | 19 | 4.1 in | 10.1 h/day | 76% |
| December | 82° | 76° | 16 | 1.9 in | 10.4 h/day | 72% |
14-day forecasts nearby