Weather forecast for 10 daysSaint John, Grenada
Weather forecast for the weekend
Sunday 18. Oct 2026
- 30°C
- 24°C
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0mm
- Wind: 27km/hESE 105°
- Humidity: 78%
- UV index: 5
- Sunrise: 05:56 AST
- Sunset: 17:47 AST
- details ▼
Today, in Saint John, patchy clouds will move across the sky, allowing for sunshine at times.
The temperature scale will run from a maximum of a tropical 30°C to a minimum of a temperate 24°C.
The maximum heat index, which combines air temperature and relative humidity, is appraised at a sizzling 37°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Sunrise was at 05:56 and sunset will be at 17:47; the daylight will last for 11h and 50min.
The temperature scale will run from a maximum of a tropical 30°C to a minimum of a temperate 24°C.
The maximum heat index, which combines air temperature and relative humidity, is appraised at a sizzling 37°C. Take into consideration that the heat index values are calculated for shade and light wind conditions. Exposure to direct sunshine can increase heat index values by up to 15 Fahrenheit (8 Celsius) degrees.
Sunrise was at 05:56 and sunset will be at 17:47; the daylight will last for 11h and 50min.
10-day overview
Daily temperatures
Maximum temperature: 30°C.
Minimum temperature: 29°C.
Minimum temperature: 29°C.
Chance of precipitation
Highest chance: Tuesday 27.10. 30%.
Long-term weather forecast
- Sunday
- 18. Oct 2026
- 30°C
- 24°C
Partly Cloudy
- Precip. probability: 6%
- Precipitation: 0mm
- Wind: 27km/hESE 105°
- Humidity: 78%
- UV index: 5
- Sunrise: 05:56 AST
- Sunset: 17:47 AST
- details ▼
- Monday
- 19. Oct 2026
- 29°C
- 24°C
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 2mm
- Wind: 24km/hESE 106°
- Humidity: 77%
- UV index: 11
- Sunrise: 05:57 AST
- Sunset: 17:46 AST
- details ▼
- Tuesday
- 20. Oct 2026
- 29°C
- 24°C
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0mm
- Wind: 23km/hESE 121°
- Humidity: 76%
- UV index: 11
- Sunrise: 05:57 AST
- Sunset: 17:46 AST
- details ▼
- Wednesday
- 21. Oct 2026
- 29°C
- 25°C
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0mm
- Wind: 25km/hSE 126°
- Humidity: 75%
- UV index: 10
- Sunrise: 05:57 AST
- Sunset: 17:45 AST
- details ▼
- Thursday
- 22. Oct 2026
- 30°C
- 25°C
Mostly Sunny
- Precip. probability: 17%
- Precipitation: 0mm
- Wind: 24km/hSE 127°
- Humidity: 73%
- UV index: 11
- Sunrise: 05:57 AST
- Sunset: 17:45 AST
- details ▼
- Friday
- 23. Oct 2026
- 29°C
- 25°C
Mostly Sunny
- Precip. probability: 22%
- Precipitation: 0mm
- Wind: 24km/hESE 115°
- Humidity: 74%
- UV index: 11
- Sunrise: 05:57 AST
- Sunset: 17:44 AST
- details ▼
- Saturday
- 24. Oct 2026
- 29°C
- 25°C
Partly Cloudy
- Precip. probability: 19%
- Precipitation: 0mm
- Wind: 25km/hESE 114°
- Humidity: 75%
- UV index: 11
- Sunrise: 05:57 AST
- Sunset: 17:44 AST
- details ▼
- Sunday
- 25. Oct 2026
- 29°C
- 25°C
Partly Cloudy
- Precip. probability: 22%
- Precipitation: 0mm
- Wind: 26km/hESE 116°
- Humidity: 75%
- UV index: 11
- Sunrise: 05:58 AST
- Sunset: 17:43 AST
- details ▼
- Monday
- 26. Oct 2026
- 29°C
- 25°C
Partly Cloudy
- Precip. probability: 24%
- Precipitation: 0mm
- Wind: 26km/hESE 112°
- Humidity: 75%
- UV index: 11
- Sunrise: 05:58 AST
- Sunset: 17:43 AST
- details ▼
- Tuesday
- 27. Oct 2026
- 29°C
- 25°C
AM Showers
- Precip. probability: 30%
- Precipitation: 1mm
- Wind: 25km/hESE 110°
- Humidity: 75%
- UV index: 11
- Sunrise: 05:58 AST
- Sunset: 17:42 AST
- details ▼
Primarily gloomy and occasionally mostly clear and showery weather is predicted.
Rain is forecasted for Monday and next Tuesday.
The temperature shift across days will be subtle during the next few days. The maximum temperature will vary between 29°C and 30°C, while the lowest nightly temperature differences will be also negligible, as the lowest temperatures will remain in the range of 24°C to 25°C.
With a maximum temperature of 30°C, Sunday and Thursday will be the hottest days in Saint John; all other days, the maximum temperature will be the same 29°C.
Combining with the humidity, the maximum feel-like temperature may increase considerably and range between a humid 33°C and a torrid 37°C.
Rain is forecasted for Monday and next Tuesday.
The temperature shift across days will be subtle during the next few days. The maximum temperature will vary between 29°C and 30°C, while the lowest nightly temperature differences will be also negligible, as the lowest temperatures will remain in the range of 24°C to 25°C.
With a maximum temperature of 30°C, Sunday and Thursday will be the hottest days in Saint John; all other days, the maximum temperature will be the same 29°C.
Combining with the humidity, the maximum feel-like temperature may increase considerably and range between a humid 33°C and a torrid 37°C.
Updated: Oct 18, 2026 @ 19:08:36 UTC
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Published by: Weather Atlas | About Us
Data Sources | weather.com | Weather
Weather Forecasting & Climate
Frequently asked questions
Today, in Saint John, occasional clouds will pass by, but expect bright spells.
Today, the maximum temperature will be 30°C, while the minimum temperature will be 24°C. The maximum heat index, which modifies the air temperature to account for humidity, is evaluated at 37°C.
On Sunday, in Saint John, sunrise was at 05:56 and sunset will be at 17:47 (AST).
In Saint John, the length of the day today will be 11h and 50min.





