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 July 9, Thursday | 01 | 25.0 77 | 742.1 29.22 989.39 989.39 | 759.5 29.9 1012.58 1012.58 | -0.5 -0.02 -0.67 -0.67 | 71 | Wind blowing from the south-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 20.0 68 | 30.0 86 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 19.4 67 | |||||||||||||||
| July 8, Wednesday | 22 | 27.2 81 | 742.6 29.24 990.05 990.05 | 760.0 29.92 1013.25 1013.25 | 0.5 0.02 0.67 0.67 | 62 | Wind blowing from the west-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 19.4 67 | |||||||||||||||||
19 | 30.0 86 | 742.1 29.22 989.39 989.39 | 759.4 29.9 1012.45 1012.45 | -0.8 -0.03 -1.07 -1.07 | 48 | Wind blowing from the south-southwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 20–30%. 2/10–3/10. 2 oktas | 20.0 68 | 31.7 89 | 1500-2000 4921-6562 | 16.0 9.9 | 17.8 64 | ||||||||||||||||
16 | 31.1 88 | 742.9 29.25 990.45 990.45 | 760.3 29.93 1013.65 1013.65 | -1.7 -0.07 -2.27 -2.27 | 45 | Wind blowing from the south | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 20–30%. 2/10–3/10. 2 oktas | 1500-2000 4921-6562 | 16.0 9.9 | 17.8 64 | ||||||||||||||||||
13 | 30.0 86 | 744.6 29.31 992.72 992.72 | 762.1 30 1016.05 1016.05 | -0.7 -0.03 -0.93 -0.93 | 45 | Wind blowing from the west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 20–30%. 2/10–3/10. 2 oktas | 22.8 73 | 30.0 86 | 1500-2000 4921-6562 | 16.0 9.9 | 16.7 62 | ||||||||||||||||
10 | 27.8 82 | 745.3 29.34 993.65 993.65 | 762.8 30.03 1016.98 1016.98 | -0.3 -0.01 -0.4 -0.4 | 51 | Wind blowing from the south-west | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 20–30%. 2/10–3/10. 2 oktas | 1500-2000 4921-6562 | 16.0 9.9 | 16.7 62 | ||||||||||||||||||
07 | 22.8 73 | 745.6 29.35 994.05 994.05 | 763.0 30.04 1017.25 1017.25 | 0.5 0.02 0.67 0.67 | 66 | Wind blowing from the west-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | 20.0 68 | 29.4 85 | 1500-2000 4921-6562 | 16.0 9.9 | 16.1 61 | ||||||||||||||||
04 | 20.6 69 | 745.1 29.33 993.39 993.39 | 762.7 30.03 1016.85 1016.85 | 0.3 0.01 0.4 0.4 | 70 | Wind blowing from the west | Light breeze (2 m/s) (7 km/h) (4 mph) (4 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 | 15.0 59 | ||||||||||||||||||
01 | 22.2 72 | 744.8 29.32 992.99 992.99 | 762.4 30.02 1016.45 1016.45 | -1.0 -0.04 -1.33 -1.33 | 59 | Calm, no wind | Calm | no clouds no clouds no clouds | 17.8 64 | 28.3 83 | 16.0 9.9 | 13.9 57 | |||||||||||||||||