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: 11 AM - around 84°
- Coolest hour: 5 PM - around 81°
- Highest rain chance: 4 PM (86%) - pack accordingly
- UV peak: 12 PM at index 10 - sun protection recommended
- Windiest: 3 PM at 19 mph
St. John's hourly weather - Tuesday, September 15
In St. John's, expect a high near 83°F (28°C) around 6 PM and a low of 82°F (28°C) near 9 PM; precipitation risk peaks at 44% around 10 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 6 PM | Patchy rain nearby | 83° | 90° | 22% | 17 mph ENE | 78% | 0 | |
| 7 PM | Overcast | 82° | 89° | 21% | 17 mph ENE | 78% | 0 | |
| 8 PM | Patchy rain nearby | 82° | 90° | 32% | 17 mph ENE | 79% | 0 | |
| 9 PM | Light rain shower | 82° | 89° | 42% | 17 mph E | 80% | 0 | |
| 10 PM | Light rain shower | 82° | 89° | 44% | 18 mph E | 79% | 0 | |
| 11 PM | Patchy rain nearby | 82° | 89° | 32% | 19 mph ENE | 79% | 0 |
St. John's hourly weather - Wednesday, September 16
In St. John's, expect a high near 84°F (29°C) around 11 AM and a low of 81°F (27°C) near 7 PM; precipitation risk peaks at 86% around 4 PM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Clear | 82° | 89° | 9% | 18 mph E | 79% | 0 | |
| 1 AM | Patchy rain nearby | 82° | 89° | 31% | 17 mph E | 79% | 0 | |
| 2 AM | Patchy rain nearby | 82° | 90° | 25% | 16 mph E | 79% | 0 | |
| 3 AM | Overcast | 82° | 89° | 20% | 16 mph E | 78% | 0 | |
| 4 AM | Light rain shower | 82° | 88° | 40% | 17 mph E | 80% | 0 | |
| 5 AM | Patchy rain nearby | 82° | 89° | 33% | 16 mph E | 80% | 0 | |
| 6 AM | Light rain shower | 82° | 89° | 43% | 16 mph E | 80% | 0 | |
| 7 AM | Light rain shower | 82° | 89° | 51% | 17 mph ESE | 80% | 0 | |
| 8 AM | Light rain shower | 82° | 90° | 69% | 17 mph ESE | 80% | 1 | |
| 9 AM | Light rain shower | 83° | 90° | 65% | 17 mph ESE | 77% | 3 | |
| 10 AM | Light rain shower | 83° | 91° | 36% | 17 mph ESE | 78% | 6 | |
| 11 AM | Light rain shower | 84° | 92° | 65% | 19 mph ESE | 76% | 9 | |
| 12 PM | Light rain shower | 84° | 91° | 60% | 19 mph ESE | 76% | 10 | |
| 1 PM | Light rain shower | 83° | 91° | 67% | 19 mph ESE | 80% | 8 | |
| 2 PM | Light rain shower | 82° | 90° | 68% | 19 mph ESE | 80% | 7 | |
| 3 PM | Moderate or heavy rain shower | 82° | 88° | 81% | 19 mph ESE | 83% | 2 | |
| 4 PM | Moderate or heavy rain shower | 81° | 88° | 86% | 19 mph ESE | 85% | 1 | |
| 5 PM | Moderate or heavy rain shower | 81° | 87° | 84% | 17 mph ESE | 85% | 0 | |
| 6 PM | Moderate or heavy rain shower | 81° | 87° | 85% | 13 mph ESE | 86% | 0 | |
| 7 PM | Light rain shower | 81° | 87° | 71% | 14 mph E | 86% | 0 | |
| 8 PM | Light rain shower | 82° | 89° | 41% | 17 mph E | 85% | 0 | |
| 9 PM | Light rain shower | 81° | 87° | 47% | 21 mph E | 86% | 0 | |
| 10 PM | Patchy rain nearby | 81° | 88° | 31% | 20 mph E | 84% | 0 | |
| 11 PM | Patchy rain nearby | 82° | 89° | 37% | 20 mph ESE | 84% | 0 |
St. John's hourly weather - Thursday, September 17
In St. John's, expect a high near 84°F (29°C) around 2 PM and a low of 82°F (28°C) near 6 AM; precipitation risk peaks at 67% around 2 AM.
| Time | Conditions | Temp | Feels | Rain | Wind | Humidity | UV | |
|---|---|---|---|---|---|---|---|---|
| 12 AM | Patchy rain nearby | 82° | 89° | 27% | 20 mph ESE | 82% | 0 | |
| 1 AM | Light rain shower | 82° | 88° | 63% | 19 mph ESE | 81% | 0 | |
| 2 AM | Light rain shower | 82° | 89° | 67% | 18 mph ESE | 80% | 0 | |
| 3 AM | Light rain shower | 82° | 88° | 45% | 18 mph ESE | 80% | 0 | |
| 4 AM | Patchy rain nearby | 82° | 88° | 24% | 19 mph ESE | 80% | 0 | |
| 5 AM | Light rain shower | 82° | 89° | 35% | 18 mph ESE | 79% | 0 | |
| 6 AM | Light rain shower | 82° | 88° | 40% | 17 mph ESE | 80% | 0 | |
| 7 AM | Light rain shower | 82° | 89° | 37% | 16 mph ESE | 79% | 0 | |
| 8 AM | Overcast | 83° | 90° | 23% | 17 mph E | 80% | 1 | |
| 9 AM | Patchy rain nearby | 83° | 92° | 29% | 17 mph E | 81% | 2 | |
| 10 AM | Patchy rain nearby | 83° | 92° | 30% | 19 mph ESE | 79% | 6 | |
| 11 AM | Patchy rain nearby | 84° | 92° | 22% | 18 mph ESE | 77% | 9 | |
| 12 PM | Patchy rain nearby | 84° | 93° | 24% | 18 mph ESE | 75% | 10 | |
| 1 PM | Patchy rain nearby | 84° | 92° | 21% | 17 mph ESE | 74% | 9 | |
| 2 PM | Overcast | 84° | 93° | 19% | 17 mph E | 74% | 7 | |
| 3 PM | Overcast | 84° | 92° | 21% | 17 mph E | 75% | 4 | |
| 4 PM | Overcast | 84° | 92° | 21% | 15 mph E | 76% | 2 | |
| 5 PM | Overcast | 83° | 91° | 21% | 14 mph E | 77% | 1 | |
| 6 PM | Patchy rain nearby | 83° | 90° | 22% | 14 mph E | 77% | 0 | |
| 7 PM | Patchy rain nearby | 83° | 90° | 24% | 14 mph E | 78% | 0 | |
| 8 PM | Light rain shower | 83° | 90° | 35% | 15 mph E | 79% | 0 | |
| 9 PM | Patchy rain nearby | 83° | 90° | 26% | 16 mph E | 80% | 0 | |
| 10 PM | Overcast | 82° | 89° | 22% | 16 mph E | 78% | 0 | |
| 11 PM | Patchy rain nearby | 82° | 89° | 25% | 15 mph E | 78% | 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 81°F (27°C) around 5 PM up to 84°F (29°C) near 11 AM - right in line with the typical September high of 86°F (30°C).
Precipitation is a real possibility: the chance of rain peaks at 86% around 4 PM. Wind picks up to 19 mph (31 km/h) from the ESE near 3 PM. UV reaches 10 (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.