🇦🇬 Weather in Saint John’s
Map Overlays:
Hourly Forecast for Saint John’s
01:00
27°
24%
02:00
27°
17%
03:00
27°
23%
04:00
27°
15%
05:00
27°
18%
06:00
27°
20%
07:00
27°
17%
08:00
28°
6%
09:00
28°
6%
10:00
28°
16%
11:00
28°
13%
12:00
28°
13%
13:00
28°
14%
14:00
28°
15%
15:00
28°
7%
16:00
28°
14%
17:00
28°
15%
18:00
28°
8%
19:00
28°
18%
20:00
27°
17%
21:00
27°
19%
22:00
28°
19%
23:00
28°
17%
00:00
28°
6%
14-Day Forecast for Saint John’s
2026-07-13
Patchy rain nearby
28° /
27°
2026-07-14
Sunny
28° /
27°
2026-07-15
Patchy rain nearby
28° /
26°
2026-07-16
Patchy rain nearby
27° /
26°
2026-07-17
Patchy rain nearby
28° /
26°
2026-07-18
Patchy rain nearby
28° /
26°
2026-07-19
Patchy rain nearby
27° /
27°
Additional Forecasts for Saint John’s
Air Quality
💨 US EPA Index 2 (Moderate)
CO (Carbon Monoxide) 90.0 μg/m³
O₃ (Ozone) 35.0 μg/m³
NO₂ (Nitrogen Dioxide) 0.1 μg/m³
SO₂ (Sulphur Dioxide) 0.2 μg/m³
PM2.5 (Fine particles) 20.0 μg/m³
PM10 (Coarse particles) 61.5 μg/m³
Historical Weather
Weather Forecasts for Other Cities in Antigua and Barbuda
Weather in Saint John’s — FAQ
Answers refreshed each request based on current conditions in Saint John’s.
What is the weather like right now in Saint John’s?
Right now in Saint John’s, Antigua and Barbuda the temperature is 27.1°C (feels like 30.5°C), with overcast. Relative humidity is 79% and wind is 27.4 km/h.
What is today's high and low temperature in Saint John’s?
Today's forecast high in Saint John’s is 28.3°C and the overnight low is 27.1°C. The diurnal range — high minus low — depends on cloud cover; clear days swing more than overcast ones.
Will it rain in Saint John’s today?
The chance of precipitation in Saint John’s today is 39%. Forecast accuracy is highest within the next 6 hours and decreases steadily out to 14 days.
How often does the weather here update?
Current observations refresh every 15-60 minutes from the nearest monitoring stations operated by national meteorological agencies. The hourly forecast updates approximately every hour; the 7- and 14-day outlook is recomputed several times per day.
What does 'feels like' temperature mean?
Feels-like (apparent) temperature accounts for humidity, wind chill and direct sunshine — variables that change how the human body perceives heat or cold. On hot, humid days it can be 3-7°C above the actual reading; on cold windy days it can be 5-15°C below.
Why does the temperature in Saint John’s differ from nearby cities?
Even short distances can change temperatures noticeably. Saint John’s's reading reflects altitude, proximity to large bodies of water, urban heat island effects, and the exact location of the monitoring stations supplying the data. Coastal cities are typically milder and more humid than inland equivalents.