St John's weather live forecast

Today's maximum temperature in St John's is expected to be 86°F. Select a day from the live weather forecast for St John's, Antigua for more weather parameters.

Saturday
19th Sep
86

81

7

11
Sunday
20th Sep
86

79

7

11
Monday
21st Sep
88

79

8

11
Tuesday
22nd Sep
88

81

7

11
Wednesday
23rd Sep
88

79

6

11

5-day weather forecast updated at 04:00 on Saturday 19th September 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 Saturday 19th September 2026

Expect broken clouds in St John's, Antigua with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 6 mph from the south-east.

86
°F maximum temperature
81
°F minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
6
mph wind from SE

St John's weather for Sunday 20th September 2026

86
°F maximum temperature
79
°F minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
4
mph wind from SE

St John's weather for Monday 21st September 2026

Expect scattered clouds in St John's, Antigua with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 8 hours of bright sunshine. There are 0 mm of rainfall expected and a light breeze of 7 mph from the east.

88
°F maximum temperature
79
°F minimum temperature
scattered clouds
8
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
7
mph wind from E

St John's weather for Tuesday 22nd September 2026

Expect broken clouds in St John's, Antigua with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the east.

88
°F maximum temperature
81
°F minimum temperature
broken clouds
7
hours of sunshine
11
UV index (Extreme)
0
mm of rainfall expected
M
moderate heat & humidity
11
mph wind from E

St John's weather for Wednesday 23rd September 2026

Expect broken clouds in St John's, Antigua with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 11+ (Extreme) and 6 hours of bright sunshine. There are 0 mm of rainfall expected and a gentle breeze of 11 mph from the east.