Weather archive in Chicago / O'Hare (airport)

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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 August 24, Monday	19	21.7 71	745.6 29.35 994.05 994.05	763.3 30.05 1017.65 1017.65	0.3 0.01 0.4 0.4	61	Wind blowing from the east	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				14.4 58	25.6 78			1500-2000 4921-6562			16.0 9.9	13.9 57
	16	25.6 78	745.3 29.34 993.65 993.65	763.0 30.04 1017.25 1017.25	-0.5 -0.02 -0.67 -0.67	40	Wind blowing from the north-west	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			50%. 5/10. 4 oktas								1500-2000 4921-6562			16.0 9.9	11.1 52
	13	25.0 77	745.8 29.36 994.32 994.32	763.6 30.06 1018.05 1018.05	0.2 0.01 0.27 0.27	42	Wind blowing from the west-northwest	Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft)			20–30%. 2/10–3/10. 2 oktas				15.0 59	25.0 77			1500-2000 4921-6562			16.0 9.9	11.1 52
	10	22.2 72	745.6 29.35 994.05 994.05	763.1 30.04 1017.38 1017.38	0.5 0.02 0.67 0.67	50	Wind blowing from the north-northwest	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas								1000-1500 3281-4921			16.0 9.9	11.1 52
	07	15.0 59	745.1 29.33 993.39 993.39	762.9 30.04 1017.12 1017.12	0.5 0.02 0.67 0.67	81	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas				14.4 58	25.0 77			600-1000 1968-3281			16.0 9.9	11.7 53
	04	15.6 60	744.6 29.31 992.72 992.72	762.3 30.01 1016.32 1016.32	0.2 0.01 0.27 0.27	78	Wind blowing from the west	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas								2500 or more, or no clouds. 8202 or more, or no clouds.			16.0 9.9	11.7 53
	01	17.2 63	744.4 29.31 992.45 992.45	762.1 30 1016.05 1016.05	-0.2 -0.01 -0.27 -0.27	73	Wind blowing from the west	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			no clouds no clouds no clouds				16.1 61	22.2 72						16.0 9.9	12.2 54
August 23, Sunday	22	20.0 68	744.6 29.31 992.72 992.72	762.1 30 1016.05 1016.05	1.0 0.04 1.33 1.33	59	Wind blowing from the west-northwest	Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			20–30%. 2/10–3/10. 2 oktas								2000-2500 6562-8202			16.0 9.9	11.7 53
August 23, Sunday	19	22.2 72	743.6 29.28 991.39 991.39	761.3 29.97 1014.98 1014.98	-0.8 -0.03 -1.07 -1.07	48	Wind blowing from the north-west	Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft)			50%. 5/10. 4 oktas				16.1 61	25.0 77			2000-2500 6562-8202			16.0 9.9	10.6 51