Longueuil

Montérégie, Québec, Canada

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Current Weather

17°

Overcast

Feels Like: 17°

Min: 14°

Max: 23°

The next few hours will be overcast, with today reaching 23°C and dropping to 20°C. The coming days will be partly cloudy throughout the day.

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Compare today's weather with yesterday's data and track temperature trends over time.

Hourly Forecast

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8pm
9pm
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Today
Tomorrow

Daylight Hours

06:31

Sunrise

19:09

Sunset

12 hours 37 minutes of sunlight today

Moon

Waning Crescent

04:24

Moonrise

18:36

Moonset

Daily Forecast

Today

14°
23°

Thursday

17°
23°

Friday

13°
21°

Saturday

14°
24°

Sunday

19°
24°

Monday

17°
21°

Tuesday

16°
23°

Wednesday

18°
22°

Thursday

12°
21°

Friday

15°
27°

Air Quality Data Available

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UV Index

No protection needed
0 Low
Low Extreme

Humidity

83% Humid
Low High

Weather in Longueuil today, September 09, 2026

Expect a muted, overcast feel in Longueuil on September 09, 2026 as cloud persists. Brighter breaks, if they arrive, should stay brief. The first half of the day looks overcast, as cloud amounts reach about 100% around 08:00. Brighter weather, if it comes, waits until later.

Temperatures climb from an overnight low near 14°C toward a daytime high of about 23°C. Relative humidity sits between 69% and 94%, reaching its peak around 23:00. Expect gentle winds, highest near 21:00 at 7.1 km/h.

Through the afternoon cloud remains the main feature, with cover near 100% around 12:00. Bright spells should stay limited even as the day wears on. Horizontal visibility sits around 13.8 km, briefly nearer 2.8 km. The sun rises at 06:31 and sets at 19:09, for a total of 12 hours 37 minutes of sunlight today.

Taken together, overcast skies in Longueuil on September 09, 2026 favour indoor or covered options, with temperatures near 23°C.

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Metric (°C, km/h)