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Weather in Longueuil, Canada 🇨🇦

Weather Forecast in Longueuil

Current Weather in Longueuil

Partly cloudy
25°C
Feels like 26°C. Partly cloudy.
🌬️ 7 km/h WSW
💧 47% Humidity
🧭 1011 hPa
👁️ 14.0 km Visibility
☀️ UV Index: 0.0
🌡️ Dew Point: 12°C
🌅 Sunrise: 05:24 AM
🌇 Sunset: 08:35 PM
Map Overlays:

In Longueuil right now it is 25°C and partly cloudy, feeling like 26°C. Humidity sits at 47% and winds are near 7 km/h, and the UV index is 0 (low). Across the coming days, Longueuil should see roughly 14°C to 30°C.

Hourly Forecast for Longueuil

21:00
Clear
22°
2%
22:00
Clear
21°
3%
23:00
Clear
20°
4%
00:00
Clear
19°
5%
01:00
Clear
18°
7%
02:00
Clear
18°
7%
03:00
Clear
18°
6%
04:00
Clear
18°
4%
05:00
Clear
18°
4%
06:00
Sunny
18°
4%
07:00
Sunny
19°
4%
08:00
Partly Cloudy
19°
9%
09:00
Partly Cloudy
20°
9%
10:00
Light rain shower
21°
36%
11:00
Light rain shower
21°
48%
12:00
Cloudy
21°
15%
13:00
Partly Cloudy
23°
12%
14:00
Patchy rain nearby
24°
52%
15:00
Light rain shower
23°
58%
16:00
Light rain shower
22°
61%
17:00
Moderate or heavy rain shower
20°
87%
18:00
Heavy rain
19°
94%
19:00
Moderate or heavy rain shower
19°
91%
20:00
Light rain shower
19°
78%

14-Day Forecast for Longueuil

Mon, Jul 20
Sunny Sunny
30° / 14°
Tue, Jul 21
Sunny Sunny
24° / 18°
Wed, Jul 22
Patchy rain nearby Patchy rain nearby
20° / 15°
Thu, Jul 23
Sunny Sunny
22° / 12°
Fri, Jul 24
Sunny Sunny
25° / 14°
Sat, Jul 25
Sunny Sunny
27° / 16°
Sun, Jul 26
Partly Cloudy Partly Cloudy
28° / 17°
Mon, Jul 27
Partly Cloudy Partly Cloudy
28° / 18°
Tue, Jul 28
Partly Cloudy Partly Cloudy
23° / 16°
Wed, Jul 29
Partly Cloudy Partly Cloudy
18° / 15°
Thu, Jul 30
Sunny Sunny
24° / 13°
Fri, Jul 31
Sunny Sunny
26° / 15°
Sat, Aug 01
Partly Cloudy Partly Cloudy
28° / 16°
Sun, Aug 02
Partly Cloudy Partly Cloudy
21° / 19°

Additional Forecasts for Longueuil

Air Quality

💨 US EPA Index 1 (Good)
CO (Carbon Monoxide) 326.0 μg/m³
O₃ (Ozone) 57.0 μg/m³
NO₂ (Nitrogen Dioxide) 20.6 μg/m³
SO₂ (Sulphur Dioxide) 3.7 μg/m³
PM2.5 (Fine particles) 11.8 μg/m³
PM10 (Coarse particles) 12.0 μg/m³

Historical Weather

Weather Forecasts for Other Cities in Canada

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Best Time to Be Outside in Longueuil Tomorrow

There is no good daylight window left in Longueuil today. Tomorrow, the most comfortable window looks like 06:00 to 08:00, when it is around 19°C. It should stay dry through that window. The next likely rain is around 14:00.

Frequently Asked Questions about Weather in Longueuil

What is the temperature in Longueuil right now?

The current temperature in Longueuil is 25°C (78°F), partly cloudy (feels like 26°C).

What's the weather like in Longueuil right now?

Current weather in Longueuil: Partly cloudy, humidity 47%, wind 7 km/h WSW.

What is today's forecast for Longueuil?

Today in Longueuil: high 30°C, low 14°C, sunny. Chance of rain: 3%.

What is the 7-day weather forecast for Longueuil?

Daily highs and lows for Longueuil:

  • 2026-07-20: 30°C / 14°C
  • 2026-07-21: 24°C / 18°C
  • 2026-07-22: 20°C / 15°C
  • 2026-07-23: 22°C / 12°C
  • 2026-07-24: 25°C / 14°C
  • 2026-07-25: 27°C / 16°C
  • 2026-07-26: 28°C / 17°C
Is it going to rain in Longueuil today?

There is a 3% chance of rain in Longueuil today.

What is the wind speed in Longueuil right now?

Wind in Longueuil is currently 7 km/h (4 mph) from the WSW.

What is the UV index in Longueuil right now?

The UV index in Longueuil is currently 0 (low). Sun protection is recommended when the index is 3 or higher.

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