St. John's, Antigua and Barbuda 14-Day Forecast
86°
Patchy rain nearby right now
Today: high 83°, low 80°
Updated just now
St. John's weather for the next 14 days
Saturday, July 18
Patchy rain nearby High 82° Low 81°Precipitation
41%
· 0.03 in
Max wind
23 mph
Humidity
75%
UV index
11 - Extreme
Sunrise / sunset
05:42 AM / 06:44 PM
Sunday, July 19
Patchy rain nearby High 83° Low 80°Precipitation
57%
· 0.05 in
Max wind
22 mph
Humidity
75%
UV index
10 - Very High
Sunrise / sunset
05:43 AM / 06:44 PM
Monday, July 20
Patchy rain nearby High 82° Low 81°Precipitation
45%
· 0.03 in
Max wind
20 mph
Humidity
75%
UV index
12 - Extreme
Sunrise / sunset
05:43 AM / 06:44 PM
Tuesday, July 21
Patchy rain nearby High 82° Low 80°Precipitation
68%
· 0.14 in
Max wind
15 mph
Humidity
76%
UV index
7 - High
Sunrise / sunset
05:43 AM / 06:43 PM
Wednesday, July 22
Partly Cloudy High 82° Low 80°Precipitation
17%
· 0.0 in
Max wind
19 mph
Humidity
72%
UV index
7 - High
Sunrise / sunset
05:44 AM / 06:43 PM
Thursday, July 23
Patchy rain nearby High 83° Low 81°Precipitation
17%
· 0.0 in
Max wind
22 mph
Humidity
73%
UV index
7 - High
Sunrise / sunset
05:44 AM / 06:43 PM
Friday, July 24
Patchy rain nearby High 83° Low 81°Precipitation
42%
· 0.02 in
Max wind
21 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
05:44 AM / 06:43 PM
Saturday, July 25
Patchy rain nearby High 83° Low 81°Precipitation
24%
· 0.01 in
Max wind
21 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
05:45 AM / 06:42 PM
Sunday, July 26
Patchy rain nearby High 83° Low 80°Precipitation
71%
· 0.15 in
Max wind
18 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
05:45 AM / 06:42 PM
Monday, July 27
Patchy rain nearby High 83° Low 81°Precipitation
57%
· 0.05 in
Max wind
21 mph
Humidity
76%
UV index
7 - High
Sunrise / sunset
05:45 AM / 06:42 PM
Tuesday, July 28
Light rain shower High 82° Low 80°Precipitation
79%
· 0.25 in
Max wind
22 mph
Humidity
80%
UV index
6 - High
Sunrise / sunset
05:46 AM / 06:41 PM
Wednesday, July 29
Patchy rain nearby High 83° Low 81°Precipitation
36%
· 0.01 in
Max wind
23 mph
Humidity
80%
UV index
7 - High
Sunrise / sunset
05:46 AM / 06:41 PM
Thursday, July 30
Patchy rain nearby High 83° Low 81°Precipitation
62%
· 0.08 in
Max wind
20 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
05:46 AM / 06:41 PM
St. John's 14-day outlook: the story
The warmest day of St. John's's 14-day outlook is Sunday, July 19 with a high near 83°F (28°C); the coolest night comes Tuesday, July 21, dipping to 80°F (26°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 July high of 86°F (30°C).
Precipitation is most likely on Friday 17, Sunday 19, Tuesday 21, Sunday 26 and beyond; the wettest day looks like Tuesday, July 28 with about 0.25 in (6.4 mm) expected. For the weekend, expect Saturday 82°F (28°C) and patchy rain nearby / Sunday 83°F (28°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 7 of the next 14 days, peaking around Tuesday, July 28.
What will be the warmest day in St. John's over the next 14 days?
Sunday, July 19, with a forecast high near 83°F (28°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