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 7, Friday	01	22.2 72	746.3 29.38 994.99 994.99	763.9 30.07 1018.45 1018.45	0.2 0.01 0.27 0.27	94	Calm, no wind	Calm			20–30%. 2/10–3/10. 2 oktas	Mist.			20.6 69	26.1 79			1500-2000 4921-6562			9.0 5.6	21.1 70
August 6, Thursday	22	23.9 75	746.1 29.37 994.72 994.72	763.8 30.07 1018.32 1018.32	1.0 0.04 1.33 1.33	84	Wind blowing from the south	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas								600-1000 1968-3281			16.0 9.9	21.1 70
	19	25.6 78	745.1 29.33 993.39 993.39	762.7 30.03 1016.85 1016.85	-0.7 -0.03 -0.93 -0.93	74	Wind blowing from the east-northeast	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas				20.6 69	27.8 82			600-1000 1968-3281			16.0 9.9	20.6 69
	16	27.2 81	745.8 29.36 994.32 994.32	763.3 30.05 1017.65 1017.65	-0.7 -0.03 -0.93 -0.93	65		Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft)			70 – 80%. 7/10 – 8/10. 6 oktas								600-1000 1968-3281			16.0 9.9	20.0 68
	13	25.6 78	746.5 29.39 995.25 995.25	764.2 30.09 1018.85 1018.85	0.0 0 0 0	71		Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas				21.7 71	25.6 78			600-1000 1968-3281			14.0 8.7	20.0 68	Trace of precipitation Trace of precipitation	6
	10	22.8 73	746.5 29.39 995.25 995.25	764.3 30.09 1018.98 1018.98	0.4 0.02 0.53 0.53	81	Wind blowing from the east	Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft)			100%. 10/10. 8 oktas								300-600 984-1968			14.0 8.7	19.4 67
	07	21.7 71	746.1 29.37 994.72 994.72	763.8 30.07 1018.32 1018.32	0.5 0.02 0.67 0.67	84	Calm, no wind	Calm			100%. 10/10. 8 oktas				20.6 69	27.8 82			1500-2000 4921-6562			16.0 9.9	18.9 66
	04	21.1 70	745.6 29.35 994.05 994.05	763.1 30.04 1017.38 1017.38	-0.2 -0.01 -0.27 -0.27	84	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas								2000-2500 6562-8202			16.0 9.9	18.3 65
	01	21.1 70	745.8 29.36 994.32 994.32	763.4 30.06 1017.78 1017.78	0.2 0.01 0.27 0.27	84	Calm, no wind	Calm			70 – 80%. 7/10 – 8/10. 6 oktas				21.1 70	25.0 77			1500-2000 4921-6562			16.0 9.9	18.3 65