Weather archive in Montreal / Pierre Elliott Trudeau (airport)

To receive explanations, hover over the appropriate heading

Date / Local time		T	Po	P	Pa	U	DD	Ff	ff10	ff3	N	WW	W1	W2	Tn	Tx	Cl	Nh	H	Cm	Ch	VV	Td	RRR	tR	E	Tg	E'	sss
2026 September 6, Sunday	04	12.8 55	759.8 29.91 1012.98 1012.98	763.2 30.05 1017.52 1017.52	0.6 0.02 0.8 0.8	96	Wind blowing from the east-northeast	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			40%. 4/10. 3 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			24.0 14.9	12.1 54
2026 September 6, Sunday	01	14.4 58	759.2 29.89 1012.18 1012.18	762.6 30.02 1016.72 1016.72	0.2 0.01 0.27 0.27	80	Wind blowing from the north-east	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Clouds generally forming or developing.	Shower(s).	Cloud covering more than 1/2 of the sky during part of the appropriate period and covering 1/2 or less during part of the period.	13.7 57	22.2 72	Stratus nebulosus or Stratus fractus other than of bad weather, or both.	10% or less, but not 0 1/10 or less, but not zero 1 okta or less, but not 0	300-600 984-1968	Altocumulus translucidus or opacus in two or more layers, or Altocumulus opacus in a single layer, not progressively invading the sky, or Altocumulus with Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	11.0 52	Trace of precipitation Trace of precipitation	6
September 5, Saturday	22	14.9 59	759.0 29.88 1011.92 1011.92	762.4 30.02 1016.45 1016.45	0.8 0.03 1.07 1.07	91	Wind blowing from the north-east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			50%. 5/10. 4 oktas								300-600 984-1968			24.0 14.9	13.4 56
	19	17.7 64	758.2 29.85 1010.85 1010.85	761.6 29.98 1015.38 1015.38	1.2 0.05 1.6 1.6	84	Wind blowing from the north-east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	Rain shower(s), slight.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	Cloud covering more than 1/2 of the sky throughout the appropriate period.	15.8 60	22.2 72	Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	24.0 14.9	15.0 59	1.0 0.04	6
	16	20.9 70	757.0 29.8 1009.25 1009.25	760.3 29.93 1013.65 1013.65	0.1 0 0.13 0.13	68	Wind blowing from the north-east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			60%. 6/10. 5 oktas								600-1000 1968-3281			24.0 14.9	14.7 58
	13	20.8 69	756.9 29.8 1009.12 1009.12	760.2 29.93 1013.52 1013.52	-0.2 -0.01 -0.27 -0.27	70	Wind blowing from the north-east	Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas				15.8 60	22.2 72	Cumulus mediocris or congestus, with or without Cumulus of species fractus or humilis or Stratocumulus, all having their bases at the same level.	90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas	600-1000 1968-3281	No Altocumulus, Altostratus or Nimbostratus.	No Cirrus, Cirrocumulus or Cirrostratus.	24.0 14.9	15.2 59	No precipitation No precipitation	6
	10	19.4 67	757.1 29.81 1009.38 1009.38	760.4 29.94 1013.78 1013.78	0.7 0.03 0.93 0.93	78	Wind blowing from the east-northeast	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			90 or more, but not 100% 9/10 or more, but not 10/10 7 oktas or more, but not 8 oktas								300-600 984-1968			24.0 14.9	15.4 60
	07	17.8 64	756.4 29.78 1008.45 1008.45	759.7 29.91 1012.85 1012.85	0.7 0.03 0.93 0.93	84	Wind blowing from the east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				15.8 60	24.5 76	Stratocumulus other than Stratocumulus cumulogenitus.	60%. 6/10. 5 oktas	300-600 984-1968	No Altocumulus, Altostratus or Nimbostratus.	Cirrus fibratus, sometimes uncinus, not progressively invading the sky.	24.0 14.9	15.1 59	No precipitation No precipitation	6
	04	16.4 62	755.7 29.75 1007.52 1007.52	759.0 29.88 1011.92 1011.92	0.5 0.02 0.67 0.67	94	Wind blowing from the north-east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			60%. 6/10. 5 oktas								300-600 984-1968			24.0 14.9	15.4 60