Gros Islet weather live forecast

Today's maximum temperature in Gros Islet is expected to be 88°F. Select a day from the live weather forecast for Gros Islet, St Lucia for more weather parameters.

Friday
14th Aug
88

82

7

9
Saturday
15th Aug
86

81

3

9
Sunday
16th Aug
88

81

2

11
Monday
17th Aug
88

81

6

11
Tuesday
18th Aug
90

81

7

11

5-day weather forecast updated at 04:03 on Friday 14th 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 Friday 14th August 2026

Expect broken 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 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 16 mph from the north-east.

88
°F maximum temperature
82
°F minimum temperature
broken clouds
7
hours of sunshine
9
UV index (Very High)
0
mm of rainfall expected
M
moderate heat & humidity
16
mph wind from NE

Gros Islet weather for Saturday 15th August 2026

Expect isolated thunderstorms in Gros Islet, St Lucia with a maximum temperature of 86°F, moderate levels of heat & humidity, maximum UV of 9 (Very High) and 3 hours of bright sunshine. There are 10-20 mm of rainfall expected with 92% chance of some rain and a moderate breeze of 14 mph from the east.

86
°F maximum temperature
81
°F minimum temperature
isolated thunderstorms
3
hours of sunshine
9
UV index (Very High)
92
% chance of some rain
<20
mm of rainfall expected
M
moderate heat & humidity
14
mph wind from E

Gros Islet weather for Sunday 16th 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 2 hours of bright sunshine. There are 20-30 mm of rainfall expected with 79% chance of some rain and a gentle breeze of 12 mph from the east.

88
°F maximum temperature
81
°F minimum temperature
isolated thunderstorms
2
hours of sunshine
11
UV index (Extreme)
79
% chance of some rain
<30
mm of rainfall expected
M
moderate heat & humidity
12
mph wind from E

Gros Islet weather for Monday 17th 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 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 52% chance of some rain and a gentle breeze of 10 mph from the east.

88
°F maximum temperature
81
°F minimum temperature
isolated thunderstorms
6
hours of sunshine
11
UV index (Extreme)
52
% chance of some rain
<2
mm of rainfall expected
M
moderate heat & humidity
10
mph wind from E

Gros Islet weather for Tuesday 18th 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 11+ (Extreme) and 7 hours of bright sunshine. There are 5-10 mm of rainfall expected with 55% chance of some rain and a light breeze of 6 mph from the east.