Live Weather & Forecast
Weather in Saint John
New Brunswick, Canada · Real-time conditions & 3-day outlook
3°C
Feels like 0°C
38°F / Feels 33°F
Clear
Saint John, New Brunswick
🌙 Nighttime
Updated: 2026-04-25 03:45
Humidity
71%
Wind
10.8 km/h NNW
Wind Gust
20.5 km/h
Pressure
1013 mb
Visibility
10 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
0%
Dew Point
-2.6°C
Wind Degree
331°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
145.9 μg/m³
NO₂
2 μg/m³
O₃
74 μg/m³
SO₂
1.3 μg/m³
PM 2.5
2.5 μg/m³
PM 10
3 μg/m³
Today's Hourly Forecast
24-hour breakdown for Saint John, New Brunswick
12 AM
1°
Clear
1 AM
1°
Clear
2 AM
1°
Clear
3 AM
3°
Clear
4 AM
1°
Clear
5 AM
1°
Partly Cloudy
6 AM
2°
Partly Cloudy
7 AM
4°
Partly Cloudy
8 AM
5°
Sunny
9 AM
6°
Partly Cloudy
10 AM
7°
Cloudy
11 AM
7°
Overcast
12 PM
8°
Overcast
1 PM
9°
Overcast
2 PM
9°
Overcast
3 PM
10°
Overcast
4 PM
10°
Overcast
5 PM
10°
Cloudy
6 PM
9°
Overcast
7 PM
8°
Overcast
8 PM
7°
Overcast
9 PM
6°
Overcast
10 PM
6°
Cloudy
11 PM
5°
Overcast
3-Day Forecast
Daily overview for Saint John, New Brunswick
Today
Overcast
10°
/
0°
🌧️ 0% chance of rain
💧 Avg. humidity: 74%
💨 Max wind: 19.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 3.7
🌅 Sunrise: 06:22 AM
🌇 Sunset: 08:23 PM
🌙 Waxing Gibbous
🌑 Moon: 60% lit
Sun, Apr 26
Cloudy
13°
/
5°
🌧️ 0% chance of rain
💧 Avg. humidity: 73%
💨 Max wind: 11.9 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 5.2
🌅 Sunrise: 06:20 AM
🌇 Sunset: 08:24 PM
🌙 Waxing Gibbous
🌑 Moon: 70% lit
Mon, Apr 27
Sunny
12°
/
1°
🌧️ 0% chance of rain
💧 Avg. humidity: 55%
💨 Max wind: 10.4 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 5.3
🌅 Sunrise: 06:19 AM
🌇 Sunset: 08:25 PM
🌙 Waxing Gibbous
🌑 Moon: 79% lit
Best Time to Visit Saint John
Plan your trip to Saint John, Canada around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Saint John?
Current conditions in Saint John: Clear, temperature 3°C, humidity 71%.
What is the best time to visit Saint John?
The best time to visit Saint John is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Saint John?
Saint John is located at approximately 45.3° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Saint John?
The wettest period in Saint John is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Saint John?
For visits to Saint John during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Saint John in?
Saint John is located in Canada, in the state of New Brunswick.
What are the public holidays in Saint John in 2026?
View the 2026 public holidays for Saint John on our Holidays page.
What are the GPS coordinates used for the weather forecast in Saint John?
The weather forecast for Saint John uses coordinates 45.2788, -66.0585.
What is the current temperature outside in Saint John?
The current outdoor temperature in Saint John is 3°C (37°F) with clear.
What is the hourly weather forecast for Saint John today?
Today's hour-by-hour weather breakdown for Saint John is shown in the Hourly Forecast section above, including temperature, rain chance, and conditions for each hour of the day.
What is the weather in Saint John tomorrow hour by hour?
Tomorrow's forecast for Saint John shows a high of 13°C and a low of 5°C. See the 3-Day Forecast section above for a full hourly breakdown.
What is the chance of rain today in Saint John?
Rain is not expected in Saint John today. Current forecast shows no significant rain probability.
Is it going to rain today in Saint John?
No, rain is not forecast for Saint John today. Current conditions show clear to partly cloudy skies.