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WeatherLive › Quebec › Châteauguay

Châteauguay, QC Weather

Today Hourly 10-Day Weekend Monthly Radar Air Quality Climate
Current WeatherChâteauguay · 9:56 PM EDT
80° | 61°
67°F
Feels like 65°
Sunny
WindNW 7 mph · Gusts 14 mph
Precip18% · 0.01 in
Humidity66% · Dew point 55°
UV index6 High
Air Quality24 Good
Pressure29.88 inHg
Visibility6 mi
Sunrise / Sunset5:53 AM · 8:06 PM · 14h 13m

Weather map — Châteauguay

Full radar →
Now
67°
5%
7 mph
22:00
66°
5%
6 mph
23:00
65°
6%
6 mph
00:00
64°
6%
6 mph
01:00
63°
7%
5 mph
02:00
62°
8%
6 mph
03:00
61°
9%
6 mph
04:00
60°
9%
6 mph
05:00
60°
8%
6 mph
06:00
59°
9%
5 mph
07:00
57°
9%
4 mph
08:00
61°
6%
5 mph
09:00
64°
4%
6 mph
10:00
67°
3%
7 mph
11:00
69°
2%
8 mph
12:00
71°
2%
9 mph
13:00
72°
4%
11 mph
14:00
73°
3%
12 mph
15:00
74°
2%
11 mph
16:00
75°
2%
11 mph
17:00
75°
2%
9 mph
18:00
73°
3%
8 mph
19:00
70°
4%
5 mph
20:00
67°
10%
5 mph

Today · Thu 8/13

High 80°
18% / 0.01 in

Sunny. Winds W at 11 mph.

Tonight · Thu 8/13

Low 57°
5% / –

Sunny. Winds NW at 6 mph.

Tomorrow · Fri 8/14

75° | 57°
5% / –

Sunny. Winds NW at 12 mph.

7-day trend

Châteauguay · temperature + precipitation

10-day forecast

Updated 9:56 PM

Details & indices

Wind
7 mph NW
Gusts 14 mph
Humidity
66%
Dew point 55°
Pressure
29.88 inHg
Falling
UV index
6 — High
High today
Air Quality
Good
AQI 24 · US EPA
Allergy
Very high
Mugwort
Visibility
6 mi
Clear view
Allergy — Châteauguay

🌿 Conditions right now

View all →
Birch
None
Grass
High
Oak
None
Alder
None
Hazel
None
Mugwort
Very high
Ragweed
None

Sun & moon

Sunrise5:53 AM
Sunset8:06 PM
Length of day14h 13m
Moonrise6:34 AM
Moonset8:30 PM
Moon phase🌔 New Moon
Latitude45.3834°N
Longitude-73.7492°E

Water temps nearby

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No beaches within 50 miles
🌤️No rain expected in the next 90 minutes
Now+30+60+90 min
Minute-by-minute precip · HRRR nowcast

Daily planner

computed from today's forecast
Laundry day
Fair
Line-drying weather
Grilling
Great
Fire up the grill
Running
Fair
Lace up outside
Patio
Great
Dinner outdoors
Nearby places in {{REGION}}
Montréal
Sunny
68°
Québec
Sunny
63°
Laval
Sunny
68° 🌤️
Gatineau
—
— 🌤️
Longueuil
—
— 🌤️
Saguenay
—
—
Data sources · Thursday, August 13
Where the Châteauguay forecast comes from
This page blends NOAA/NWS model guidance with global ensembles for the 10-day outlook, air quality and alerts. Data refreshes every hour, current conditions every 15 minutes. Coordinates: 45.3834°N, -73.7492°.
NBM + global weather models
Updated: 9:56 PM
Weather in Châteauguay
Over the next 10 days Châteauguay tops out around 81° (Friday) and dips to 54° on the coolest night (Saturday). About 1.0 in of precipitation is expected in total; the most likely wet day is Saturday (89% chance). Heads up: 5 NWS alerts are active right now, including a squall — details on the alerts tab. Right now Châteauguay is running about 4° warmer than Québec. Longer view: four full seasons with serious winter and real summer heat.
Châteauguay, QC · Elev 62 ft · 45.38°N, 73.75°W · Quebec · Forecast computed for these exact coordinates
Powered by NWS/NOAA guidance, multi-model forecasts and official environmental feeds · NOAA/NWS · EPA AirNow · MET Norway · global models
Updated: 9:56 PM