Canada/Quebec/Mont- Longueuil

Mont- Longueuil

Local Time: 9:34 PMElevation: 460mStation: MSC Automated Radar
3°C
Mainly Clear
Feels like 1°C10°3°
Canadian Humidex
3
Comfortable
4
Canada AQHI Index
Moderate Risk
Ideal for outdoor activities
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24-Hour Forecast & Precipitation Timeline
Full 48h Outlook
Now
5°
69%
10 PM
3°
94%
11 PM
4°
100%
12 AM
4°
100%
1 AM
5°
100%
2 AM
4°
99%
3 AM
3°
98%
4 AM
3°
96%
5 AM
3°
95%
6 AM
3°
95%
7 AM
3°
94%
8 AM
4°
93%
9 AM
5°
93%
10 AM
5°
92%
11 AM
7°
94%
12 PM
6°
95%
1 PM
6°
88%
2 PM
6°
64%
3 PM
5°
32%
4 PM
4°
-
5 PM
5°
-
6 PM
3°
-
7 PM
3°
-
8 PM
3°
-
14-Day Extended Trend (HRDPS & GEM Models)
14-Day View
Today
0%
3°
10°
Fri
6.8mm
3°
7°
Sat
0%
2°
7°
Sun
1mm
3°
8°
Mon
0.6mm
2°
7°
Tue
0%
2°
10°
Wed
0%
1°
13°
Official Canadian Ensemble ForecastUpdated 15 mins ago
Wind & Gust Velocity
4km/h
Peak Gusts: 9 km/h
NSWE
Wind blowing from 167°. Calm to moderate breeze for Canadian standards.
Canada AQHI (Air Quality)
Scale 1 - 10+
4Moderate Risk

No need to modify usual outdoor activities unless you experience symptoms such as coughing or throat irritation.

PM2.5: 1.7 µg/m³
Ozone: 65 ppb
Solar Cycle & Golden Hour
Sunrise
2:19 AM
Sunset
2:50 PM
Timezone: America/Toronto
Atmospheric Diagnostics
Humidity
78%
Dew Point: 3°C
Max UV
0
Moderate Exposure
Pressure
1018 hPa
Stable Trend
Visibility
16+ km
Clear Horizon
Cloud Cover: 30%

Mont- Longueuil Live Precipitation Radar

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Mont- Longueuil Live Doppler RadarMSC Dual-Pol

Mont- Longueuil, QC • Lat: 51.17° N, Lon: 70.20° W • Sweep 10m

100%
Doppler Beam: 250 km Radius
Mont- Longueuil, QC
N 0°
S 180°
W 270°
E 90°
Precipitation Reflectivity (dBZ)MSC 5.6 GHz
Flurries / DrizzleHeavy Snow / Hail
LiveLIVE
Frame 5 of 6
Climate Normals

Mont- Longueuil 30-Year Weather History & Monthly Averages

Explore month-by-month temperatures, annual snowfall in cm, rainy days, and historical record highs and lows.

View Jan - Dec Climate Table
Health & Environment

Mont- Longueuil Air Quality & Wildfire Smoke Report

Detailed Canadian AQHI breakdown, fine particulate matter (PM2.5), ground-level ozone, and health guidance.

View AQHI Health Index

Frequently Asked Questions About Weather in Mont- Longueuil, QC

What is the current temperature and conditions in Mont- Longueuil?

As of today, the temperature in Mont- Longueuil is 3.3°C with mainly clear. The apparent temperature (feels like) is 0.6°C with relative humidity at 78%.

How does Wind Chill and Humidex affect Mont- Longueuil?

During warmer conditions, the Canadian Humidex indicates comfort levels. The current Humidex is 3 (Comfortable).

What is the Air Quality Health Index (AQHI) for Mont- Longueuil?

The current AQHI for Mont- Longueuil is 4 (Moderate Risk). It is calculated based on ground-level ozone, fine particulate matter (PM2.5), and nitrogen dioxide levels according to Health Canada standards.

Where does the meteorological data for Mont- Longueuil come from?

Forecasts are generated using high-resolution Canadian Deterministic Prediction System (HRDPS 2.5km) and Global Environmental Multiscale (GEM) models alongside official Environment and Climate Change Canada Doppler radar feeds.

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