Current Conditions

Châteauguay, Quebec

45°F7°C
Heavy Rain

Feels like39°F4°C

Wind

NE 11 mph18 km/h

Humidity

96%

Cloud Cover

100%

As of Tuesday, October 13, 2026 at 9:24 AM EDT

Today's Outlook

Day

Overcast and cool, with a high of 49°F9°C. Breezy from the ENE at 11 mph18 km/h. 100% chance of heavy rain in the morning. Dry air.

Night

Overcast, with a low around 44°F7°C. Breezy from the NE at 10 to 11 mph16 to 18 km/h. 99% chance of rain overnight.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
Heavy RainHigh 49°F9°CFeels 44°F7°CLow 44°F7°CFeels 38°F3°CPrecip 1.49 in37.9 mm100%Cloud 100%Wind NE 10 mph17 km/hTuesday: Overcast and cool, with a high of 49°F9°C. Breezy from the ENE at 11 mph18 km/h. 100% chance of heavy rain in the morning. Dry air. Tuesday Night: Overcast, with a low around 44°F7°C. Breezy from the NE at 10 to 11 mph16 to 18 km/h. 99% chance of rain overnight.
RainHigh 51°F11°CLow 44°F7°CFeels 40°F5°CPrecip 0.19 in4.8 mm97%Cloud 98%Wind WNW 8 mph14 km/hWednesday: Overcast and mild, with a high of 51°F11°C and morning low of 45°F7°C. Breezy from the W at 8 to 10 mph13 to 16 km/h. 30% chance of drizzle around midday. Dry air. Wednesday Night: Overcast, with a low around 44°F7°C. Breezy from the NW at 9 to 10 mph14 to 16 km/h. 97% chance of rain overnight.
Partly CloudyHigh 53°F12°CLow 43°F6°CFeels 38°F3°CPrecip 0 in0 mm—Cloud 51%Wind NW 7 mph11 km/hThursday: Partly cloudy and mild, with a high of 53°F12°C and morning low of 43°F6°C. Breezy from the NW at 6 to 8 mph10 to 14 km/h. Dry air. Thursday Night: Mostly cloudy, with a low around 44°F7°C. Breezy from the WNW at 8 to 10 mph12 to 16 km/h.
RainHigh 53°F12°CLow 44°F7°CFeels 39°F4°CPrecip 0.78 in19.9 mm100%Cloud 96%Wind S 11 mph18 km/hFriday: Overcast and mild, with a high of 53°F12°C and morning low of 45°F7°C. Breezy from the SSE at 11 to 12 mph17 to 19 km/h. 100% chance of rain in the morning. Dry air. Friday Night: Overcast, with a low around 44°F7°C. Breezy from the SW at 11 to 14 mph18 to 22 km/h. 86% chance of light rain before dawn.
Freezing DrizzleHigh 45°F7°CFeels 39°F4°CLow 36°F2°CFeels 28°F-2°CPrecip 0.03 in0.7 mm34%Cloud 46%Wind WNW 13 mph22 km/hSaturday: Mostly cloudy and cool, with a high of 42°F5°C — feels like 34°F1°C. Windy from the WNW at 15 to 16 mph24 to 26 km/h. Very dry. Saturday Night: Partly cloudy, with a low around 36°F2°C. Breezy from the WNW at 12 to 14 mph20 to 22 km/h. 34% chance of freezing drizzle overnight.
ClearHigh 49°F9°CFeels 45°F7°CLow 33°F0°CFeels 26°F-3°CPrecip 0 in0 mm—Cloud 30%Wind SW 8 mph14 km/hSunday: Partly cloudy and cool, with a high of 49°F9°C and morning low of 33°F1°C. Breezy from the SW at 8 to 9 mph13 to 14 km/h. Dry air. Sunday Night: Partly cloudy, with a low around 33°F0°C. Frost likely. Breezy from the SW at 9 to 10 mph14 to 15 km/h.
ClearHigh 60°F15°CLow 41°F5°CFeels 36°F2°CPrecip 0.01 in0.3 mm4%Cloud 39%Wind SSW 9 mph15 km/hMonday: Partly cloudy and mild, with a high of 60°F15°C and morning low of 41°F5°C. Breezy from the SSW at 9 to 10 mph15 to 16 km/h. Dry air. Monday Night: Partly cloudy, with a low around 41°F5°C. Breezy from the SSW at 9 mph14 km/h.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
TuesdayOct 1349°F9°C
Feels 44°F7°C
44°F7°C
Feels 38°F3°C
1.49 in37.9 mm· 100%100%Heavy RainNE 10 mph17 km/h
WednesdayOct 1451°F11°C44°F7°C
Feels 40°F5°C
0.19 in4.8 mm· 97%98%RainWNW 8 mph14 km/h
ThursdayOct 1553°F12°C43°F6°C
Feels 38°F3°C
0 in0 mm· —51%Partly CloudyNW 7 mph11 km/h
FridayOct 1653°F12°C44°F7°C
Feels 39°F4°C
0.78 in19.9 mm· 100%96%RainS 11 mph18 km/h
SaturdayOct 1745°F7°C
Feels 39°F4°C
36°F2°C
Feels 28°F-2°C
0.03 in0.7 mm· 34%46%Freezing DrizzleWNW 13 mph22 km/h
SundayOct 1849°F9°C
Feels 45°F7°C
33°F0°C
Feels 26°F-3°C
0 in0 mm· —30%ClearSW 8 mph14 km/h
MondayOct 1960°F15°C41°F5°C
Feels 36°F2°C
0.01 in0.3 mm· 4%39%ClearSSW 9 mph15 km/h
TuesdayOct 2060°F16°C44°F7°C
Feels 40°F5°C
0.01 in0.2 mm· 4%40%ClearWSW 7 mph11 km/h
WednesdayOct 2158°F14°C41°F5°C
Feels 37°F3°C
0 in0.1 mm· 2%22%ClearSW 6 mph10 km/h
ThursdayOct 2257°F14°C42°F6°C
Feels 38°F3°C
0.1 in2.5 mm· 23%57%ShowersSSW 7 mph12 km/h
FridayOct 2354°F12°C45°F7°C
Feels 41°F5°C
0.09 in2.3 mm· 24%60%DrizzleWSW 9 mph14 km/h
SaturdayOct 2452°F11°C43°F6°C
Feels 38°F3°C
0.1 in2.5 mm· 21%65%ShowersSW 8 mph13 km/h
SundayOct 2551°F11°C44°F7°C
Feels 39°F4°C
0.19 in4.8 mm· 31%69%ShowersWSW 9 mph14 km/h
MondayOct 2650°F10°C42°F5°C
Feels 36°F2°C
0.1 in2.6 mm· 23%61%FlurriesWSW 9 mph14 km/h
TuesdayOct 2748°F9°C
Feels 44°F7°C
40°F5°C
Feels 35°F1°C
0 in0.1 mm· 23%67%FlurriesWSW 9 mph14 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

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Coordinates: 45.3834°N, 73.7492°W·Elevation: 19m·Timezone: America/Toronto·Population: 42,786