St John's weather live forecast

Today's maximum temperature in St John's is expected to be 29°C. Select a day from the live weather forecast for St John's, Antigua for more weather parameters.

Wednesday
15th Apr
29

25

6

11
Thursday
16th Apr
29

25

7

8
Friday
17th Apr
28

25

5

10
Saturday
18th Apr
28

24

6

8
Sunday
19th Apr
28

24

1

11

5-day weather forecast updated at 04:00 on Wednesday 15th April 2026 GMT

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The 5-day weather forecast for Antigua (St John's) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

St John's weather forecast by day

Below are the detailed weather forecasts for St John's for the next 5 days.

St John's weather for Wednesday 15th April 2026

Expect isolated thunderstorms in St John's, Antigua with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 6 hours of bright sunshine. There are 2-5 mm of rainfall expected with 39% chance of some rain and a gentle breeze of 17 kph from the east.

29
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
39
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
17
kph wind from E

St John's weather for Thursday 16th April 2026

Expect isolated thunderstorms in St John's, Antigua with a maximum temperature of 29°C, moderate levels of heat & humidity, maximum UV of 8 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 49% chance of some rain and a gentle breeze of 18 kph from the east.

29
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
7
hours of sunshine
8
UV index (Very High)
49
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
18
kph wind from E

St John's weather for Friday 17th April 2026

Expect isolated thunderstorms in St John's, Antigua with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 5-10 mm of rainfall expected with 58% chance of some rain and a moderate breeze of 20 kph from the east.

28
°C maximum temperature
25
°C minimum temperature
isolated thunderstorms
5
hours of sunshine
10
UV index (Very High)
58
% chance of some rain
<10
mm of rainfall expected
L
low heat & humidity
20
kph wind from E

St John's weather for Saturday 18th April 2026

Expect isolated thunderstorms in St John's, Antigua with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 8 (Very High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 60% chance of some rain and a moderate breeze of 20 kph from the east.

28
°C maximum temperature
24
°C minimum temperature
isolated thunderstorms
6
hours of sunshine
8
UV index (Very High)
60
% chance of some rain
<2
mm of rainfall expected
L
low heat & humidity
20
kph wind from E

St John's weather for Sunday 19th April 2026

Expect isolated thunderstorms in St John's, Antigua with a maximum temperature of 28°C, low levels of heat & humidity, maximum UV of 11+ (Extreme) and 1 hour of bright sunshine. There are 5-10 mm of rainfall expected with 72% chance of some rain and a moderate breeze of 20 kph from the east.