St. John's, Antigua and Barbuda 14-Day Forecast
83°
Sunny right now
Today: high 84°, low 81°
Updated just now
St. John's weather for the next 14 days
Friday, August 7
Patchy rain nearby High 83° Low 81°Precipitation
45%
· 0.03 in
Max wind
20 mph
Humidity
73%
UV index
12 - Extreme
Sunrise / sunset
05:48 AM / 06:37 PM
Saturday, August 8
Patchy rain nearby High 85° Low 81°Precipitation
38%
· 0.02 in
Max wind
20 mph
Humidity
75%
UV index
11 - Very High
Sunrise / sunset
05:49 AM / 06:37 PM
Sunday, August 9
Patchy rain nearby High 84° Low 82°Precipitation
44%
· 0.03 in
Max wind
18 mph
Humidity
77%
UV index
11 - Extreme
Sunrise / sunset
05:49 AM / 06:36 PM
Monday, August 10
Patchy rain nearby High 85° Low 82°Precipitation
60%
· 0.08 in
Max wind
17 mph
Humidity
75%
UV index
7 - High
Sunrise / sunset
05:49 AM / 06:35 PM
Tuesday, August 11
Patchy rain nearby High 84° Low 82°Precipitation
44%
· 0.03 in
Max wind
17 mph
Humidity
74%
UV index
7 - High
Sunrise / sunset
05:49 AM / 06:35 PM
Wednesday, August 12
Patchy rain nearby High 84° Low 81°Precipitation
68%
· 0.15 in
Max wind
19 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
05:50 AM / 06:34 PM
Thursday, August 13
Patchy rain nearby High 84° Low 82°Precipitation
65%
· 0.08 in
Max wind
22 mph
Humidity
76%
UV index
7 - High
Sunrise / sunset
05:50 AM / 06:34 PM
Friday, August 14
Patchy rain nearby High 84° Low 82°Precipitation
46%
· 0.03 in
Max wind
25 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
05:50 AM / 06:33 PM
Saturday, August 15
Patchy rain nearby High 84° Low 82°Precipitation
36%
· 0.02 in
Max wind
24 mph
Humidity
76%
UV index
7 - High
Sunrise / sunset
05:50 AM / 06:33 PM
Sunday, August 16
Patchy rain nearby High 83° Low 82°Precipitation
60%
· 0.05 in
Max wind
22 mph
Humidity
77%
UV index
6 - High
Sunrise / sunset
05:50 AM / 06:32 PM
Monday, August 17
Patchy rain nearby High 83° Low 82°Precipitation
73%
· 0.18 in
Max wind
21 mph
Humidity
78%
UV index
6 - High
Sunrise / sunset
05:51 AM / 06:31 PM
Tuesday, August 18
Patchy rain nearby High 84° Low 82°Precipitation
78%
· 0.32 in
Max wind
21 mph
Humidity
79%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:31 PM
Wednesday, August 19
Patchy rain nearby High 84° Low 81°Precipitation
60%
· 0.06 in
Max wind
17 mph
Humidity
78%
UV index
7 - High
Sunrise / sunset
05:51 AM / 06:30 PM
St. John's 14-day outlook: the story
The warmest day of St. John's's 14-day outlook is Saturday, August 8 with a high near 85°F (29°C); the coolest night comes Friday, August 7, dipping to 81°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 Monday 10, Wednesday 12, Thursday 13, Sunday 16 and beyond; the wettest day looks like Tuesday, August 18 with about 0.32 in (8.1 mm) expected. For the weekend, expect Saturday 85°F (29°C) and patchy rain nearby / Sunday 84°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 7 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?
Saturday, August 8, 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