St. John's, Antigua and Barbuda 14-Day Forecast
83°
Patchy rain nearby right now
Today: high 83°, low 81°
Updated 5 hours ago
St. John's weather for the next 14 days
Thursday, August 13
Patchy rain nearby High 83° Low 81°Precipitation
36%
· 0.01 in
Max wind
24 mph
Humidity
77%
UV index
11 - Extreme
Sunrise / sunset
05:50 AM / 06:34 PM
Friday, August 14
Patchy rain nearby High 85° Low 81°Precipitation
36%
· 0.01 in
Max wind
24 mph
Humidity
73%
UV index
12 - Extreme
Sunrise / sunset
05:50 AM / 06:33 PM
Saturday, August 15
Patchy rain nearby High 83° Low 80°Precipitation
53%
· 0.04 in
Max wind
26 mph
Humidity
80%
UV index
12 - Extreme
Sunrise / sunset
05:50 AM / 06:33 PM
Sunday, August 16
Light rain shower High 82° Low 80°Precipitation
85%
· 0.67 in
Max wind
28 mph
Humidity
82%
UV index
6 - High
Sunrise / sunset
05:50 AM / 06:32 PM
Monday, August 17
Patchy rain nearby High 83° Low 80°Precipitation
47%
· 0.03 in
Max wind
21 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:31 PM
Tuesday, August 18
Patchy rain nearby High 84° Low 82°Precipitation
17%
· 0.0 in
Max wind
17 mph
Humidity
74%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:31 PM
Wednesday, August 19
Patchy rain nearby High 83° Low 81°Precipitation
19%
· 0.0 in
Max wind
16 mph
Humidity
77%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:30 PM
Thursday, August 20
Patchy rain nearby High 83° Low 81°Precipitation
44%
· 0.03 in
Max wind
17 mph
Humidity
77%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:29 PM
Friday, August 21
Patchy rain nearby High 83° Low 80°Precipitation
22%
· 0.01 in
Max wind
17 mph
Humidity
77%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:29 PM
Saturday, August 22
Patchy rain nearby High 83° Low 81°Precipitation
26%
· 0.01 in
Max wind
18 mph
Humidity
79%
UV index
6 - High
Sunrise / sunset
05:52 AM / 06:28 PM
Sunday, August 23
Partly Cloudy High 83° Low 81°Precipitation
61%
· 0.08 in
Max wind
19 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
05:52 AM / 06:27 PM
Monday, August 24
Patchy rain nearby High 83° Low 81°Precipitation
58%
· 0.06 in
Max wind
18 mph
Humidity
79%
UV index
7 - High
Sunrise / sunset
05:52 AM / 06:27 PM
Tuesday, August 25
Patchy rain nearby High 83° Low 81°Precipitation
14%
· 0.0 in
Max wind
13 mph
Humidity
77%
UV index
7 - High
Sunrise / sunset
05:52 AM / 06:26 PM
St. John's 14-day outlook: the story
The warmest day of St. John's's 14-day outlook is Friday, August 14 with a high near 85°F (29°C); the coolest night comes Sunday, August 16, dipping to 80°F (27°C). Temperatures hold fairly steady from week to week. Highs over the next two weeks average 83°F (28°C), about 3°F (2°C) below the typical August high of 86°F (30°C).
Precipitation is most likely on Wednesday 12, Saturday 15, Sunday 16, Sunday 23 and beyond; the wettest day looks like Sunday, August 16 with about 0.66 in (16.9 mm) expected. For the weekend, expect Saturday 83°F (28°C) and patchy rain nearby / Sunday 82°F (28°C) and light rain shower.
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 Sunday, August 16.
What will be the warmest day in St. John's over the next 14 days?
Friday, August 14, 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