St. John's, Antigua and Barbuda Hourly Forecast
St. John's temperature trend - Next 24 hours
The next 24 hours at a glance
- Warmest hour: 3 PM - around 102°
- Coolest hour: 5 AM - around 74°
- Rain risk: low all day (peaks at 3%)
- UV peak: 12 PM at index 11 - sun protection recommended
- Windiest: 11 AM at 14 mph
St. John's hourly weather - Sunday, August 16
In St. John's, expect a high near 84°F (29°C) around 7 PM and a low of 77°F (25°C) near 11 PM, with no meaningful precipitation risk.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 7 PM | Clear | 84° | 82° | 2% | 5 mph NNW | 33% | 0 | |
| 8 PM | Clear | 81° | 79° | 1% | 4 mph NNW | 37% | 0 | |
| 9 PM | Clear | 79° | 79° | 1% | 5 mph N | 42% | 0 | |
| 10 PM | Clear | 78° | 78° | 1% | 5 mph N | 46% | 0 | |
| 11 PM | Clear | 77° | 76° | 2% | 6 mph N | 49% | 0 |
St. John's hourly weather - Monday, August 17
In St. John's, expect a high near 102°F (39°C) around 3 PM and a low of 74°F (23°C) near 5 AM, with no meaningful precipitation risk.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Clear | 78° | 77° | 2% | 6 mph N | 49% | 0 | |
| 1 AM | Clear | 77° | 76° | 2% | 6 mph N | 50% | 0 | |
| 2 AM | Clear | 77° | 75° | 2% | 7 mph N | 51% | 0 | |
| 3 AM | Clear | 77° | 75° | 2% | 7 mph N | 52% | 0 | |
| 4 AM | Clear | 76° | 75° | 2% | 6 mph N | 53% | 0 | |
| 5 AM | Clear | 74° | 73° | 3% | 6 mph NNE | 55% | 0 | |
| 6 AM | Sunny | 74° | 72° | 2% | 7 mph NNE | 54% | 0 | |
| 7 AM | Sunny | 76° | 72° | 1% | 8 mph N | 46% | 1 | |
| 8 AM | Sunny | 82° | 77° | 1% | 8 mph N | 32% | 2 | |
| 9 AM | Sunny | 89° | 81° | 0% | 12 mph N | 21% | 4 | |
| 10 AM | Sunny | 95° | 86° | 0% | 14 mph N | 16% | 8 | |
| 11 AM | Sunny | 98° | 88° | 0% | 14 mph N | 13% | 10 | |
| 12 PM | Sunny | 100° | 90° | 0% | 14 mph NNW | 13% | 11 | |
| 1 PM | Sunny | 101° | 91° | 0% | 13 mph NNW | 13% | 10 | |
| 2 PM | Sunny | 102° | 92° | 0% | 13 mph NNW | 12% | 8 | |
| 3 PM | Sunny | 102° | 92° | 0% | 12 mph NNW | 11% | 5 | |
| 4 PM | Sunny | 101° | 91° | 0% | 11 mph NNW | 10% | 2 | |
| 5 PM | Sunny | 99° | 91° | 0% | 9 mph NNW | 11% | 1 | |
| 6 PM | Sunny | 88° | 83° | 1% | 4 mph NW | 17% | 0 | |
| 7 PM | Clear | 83° | 79° | 1% | 4 mph N | 21% | 0 | |
| 8 PM | Overcast | 81° | 77° | 8% | 4 mph N | 23% | 0 | |
| 9 PM | Clear | 80° | 75° | 1% | 4 mph NNE | 25% | 0 | |
| 10 PM | Clear | 79° | 74° | 0% | 4 mph NNE | 26% | 0 | |
| 11 PM | Partly Cloudy | 78° | 74° | 2% | 3 mph N | 27% | 0 |
St. John's hourly weather - Tuesday, August 18
In St. John's, expect a high near 94°F (34°C) around 2 PM and a low of 68°F (20°C) near 11 PM, with no meaningful precipitation risk.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Clear | 77° | 74° | 1% | 2 mph NNW | 30% | 0 | |
| 1 AM | Clear | 75° | 72° | 1% | 3 mph NW | 32% | 0 | |
| 2 AM | Partly Cloudy | 74° | 71° | 2% | 2 mph NNE | 34% | 0 | |
| 3 AM | Partly Cloudy | 74° | 70° | 3% | 3 mph N | 35% | 0 | |
| 4 AM | Partly Cloudy | 73° | 70° | 5% | 3 mph N | 36% | 0 | |
| 5 AM | Overcast | 72° | 70° | 10% | 2 mph NW | 37% | 0 | |
| 6 AM | Partly Cloudy | 72° | 69° | 4% | 2 mph NNW | 38% | 0 | |
| 7 AM | Overcast | 75° | 72° | 10% | 2 mph N | 36% | 1 | |
| 8 AM | Partly Cloudy | 80° | 79° | 3% | 1 mph NNW | 31% | 2 | |
| 9 AM | Overcast | 85° | 82° | 8% | 6 mph S | 28% | 5 | |
| 10 AM | Sunny | 84° | 82° | 1% | 6 mph S | 34% | 8 | |
| 11 AM | Sunny | 88° | 86° | 1% | 7 mph S | 31% | 11 | |
| 12 PM | Sunny | 91° | 88° | 0% | 9 mph S | 29% | 12 | |
| 1 PM | Sunny | 93° | 89° | 1% | 9 mph S | 27% | 11 | |
| 2 PM | Sunny | 94° | 90° | 1% | 9 mph S | 26% | 9 | |
| 3 PM | Sunny | 94° | 89° | 2% | 9 mph SSW | 26% | 6 | |
| 4 PM | Overcast | 92° | 88° | 9% | 9 mph S | 27% | 3 | |
| 5 PM | Partly Cloudy | 88° | 85° | 4% | 8 mph S | 31% | 1 | |
| 6 PM | Cloudy | 85° | 81° | 7% | 8 mph S | 34% | 0 | |
| 7 PM | Partly Cloudy | 80° | 79° | 3% | 12 mph SSW | 40% | 0 | |
| 8 PM | Overcast | 74° | 68° | 11% | 11 mph S | 49% | 0 | |
| 9 PM | Partly Cloudy | 73° | 68° | 5% | 10 mph SSE | 49% | 0 | |
| 10 PM | Clear | 70° | 66° | 3% | 10 mph S | 52% | 0 | |
| 11 PM | Cloudy | 68° | 64° | 10% | 8 mph S | 56% | 0 |
Quick answers for the hours ahead
What is the warmest hour in St. John's today?
Will it rain in St. John's tonight?
When is the UV index highest in St. John's today?
St. John's hour-by-hour: what to expect
Over the next 24 hours in St. John's, temperatures range from 74°F (23°C) around 5 AM up to 102°F (39°C) near 3 PM - about 16°F (9°C) above the typical August high of 86°F (30°C).
Precipitation chances stay minimal throughout, so plans can skip the umbrella. UV reaches 11 (12 PM) - sun protection recommended through midday.
The “feels like” column blends humidity and wind into an apparent temperature - see how it works in our feels-like temperature guide. Planning further ahead? Check the St. John's 14-day forecast or the monthly climate averages.