Gros Islet weather live forecast

Today's maximum temperature in Gros Islet is expected to be 90°F. Select a day from the live weather forecast for Gros Islet, St Lucia for more weather parameters.

Tuesday
11th Aug
90

81

7

9
Wednesday
12th Aug
88

82

5

10
Thursday
13th Aug
88

81

5

11
Friday
14th Aug
88

82

9

9
Saturday
15th Aug
88

81

5

10

5-day weather forecast updated at 04:03 on Tuesday 11th August 2026 GMT

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The 5-day weather forecast for St Lucia (Gros Islet) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Gros Islet weather forecast by day

Below are the detailed weather forecasts for Gros Islet for the next 5 days.

Gros Islet weather for Tuesday 11th August 2026

Expect isolated thunderstorms in Gros Islet, St Lucia with a maximum temperature of 90°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 7 hours of bright sunshine. There are 0-2 mm of rainfall expected with 34% chance of some rain and a gentle breeze of 9 mph from the east.

90
°F maximum temperature
81
°F minimum temperature
isolated thunderstorms
7
hours of sunshine
9
UV index (Very High)
34
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
9
mph wind from E

Gros Islet weather for Wednesday 12th August 2026

Expect isolated thunderstorms in Gros Islet, St Lucia with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 2-5 mm of rainfall expected with 58% chance of some rain and a moderate breeze of 12 mph from the east.

88
°F maximum temperature
82
°F minimum temperature
isolated thunderstorms
5
hours of sunshine
10
UV index (Very High)
58
% chance of some rain
<5
mm of rainfall expected
M
moderate heat & humidity
12
mph wind from E

Gros Islet weather for Thursday 13th August 2026

Expect isolated thunderstorms in Gros Islet, St Lucia with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 11 (Extreme) 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 14 mph from the east.

88
°F maximum temperature
81
°F minimum temperature
isolated thunderstorms
5
hours of sunshine
11
UV index (Extreme)
58
% chance of some rain
<10
mm of rainfall expected
M
moderate heat & humidity
14
mph wind from E

Gros Islet weather for Friday 14th August 2026

Expect scattered clouds in Gros Islet, St Lucia with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 9 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 17 mph from the east.

88
°F maximum temperature
82
°F minimum temperature
scattered clouds
9
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
17
mph wind from E

Gros Islet weather for Saturday 15th August 2026

Expect isolated thunderstorms in Gros Islet, St Lucia with a maximum temperature of 88°F, moderate levels of heat & humidity, maximum UV of 10 (Very High) and 5 hours of bright sunshine. There are 0-2 mm of rainfall expected with 71% chance of some rain and a moderate breeze of 13 mph from the north-east.