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 October 12, Monday | 19 | 28.3 83 | 737.6 29.04 983.39 983.39 | 754.9 29.72 1006.45 1006.45 | 0.0 0 0 0 | 46 | Wind blowing from the south-southwest | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 17.2 63 | 31.1 88 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 15.6 60 | |||||||||||||||
16 | 30.6 87 | 737.6 29.04 983.39 983.39 | 755.0 29.72 1006.58 1006.58 | -2.0 -0.08 -2.67 -2.67 | 42 | Wind blowing from the south-southwest | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 16.1 61 | |||||||||||||||||
13 | 28.3 83 | 739.6 29.12 986.05 986.05 | 757.0 29.8 1009.25 1009.25 | -1.2 -0.05 -1.6 -1.6 | 49 | Wind blowing from the south-southwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 50%. 5/10. 4 oktas | 18.3 65 | 28.3 83 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 16.7 62 | ||||||||||||||||
10 | 23.9 75 | 740.8 29.17 987.65 987.65 | 758.5 29.86 1011.25 1011.25 | -0.3 -0.01 -0.4 -0.4 | 58 | Wind blowing from the south-west | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 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 | ||||||||||||||||||
07 | 18.3 65 | 741.1 29.18 988.05 988.05 | 758.8 29.87 1011.65 1011.65 | 0.0 0 0 0 | 73 | Wind blowing from the south-west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 17.2 63 | 25.6 78 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 13.3 56 | ||||||||||||||||
04 | 18.9 66 | 741.1 29.18 988.05 988.05 | 758.6 29.87 1011.38 1011.38 | -0.5 -0.02 -0.67 -0.67 | 68 | Wind blowing from the south-southwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 12.8 55 | ||||||||||||||||||
01 | 17.8 64 | 741.6 29.2 988.72 988.72 | 759.2 29.89 1012.18 1012.18 | -0.5 -0.02 -0.67 -0.67 | 70 | Wind blowing from the south | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | 12.8 55 | 22.2 72 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 12.2 54 | ||||||||||||||||
| October 11, Sunday | 22 | 18.9 66 | 742.1 29.22 989.39 989.39 | 759.7 29.91 1012.85 1012.85 | 0.3 0.01 0.4 0.4 | 75 | Wind blowing from the south | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 14.4 58 | ||||||||||||||||||
19 | 22.2 72 | 741.8 29.2 988.99 988.99 | 759.6 29.91 1012.72 1012.72 | -0.3 -0.01 -0.4 -0.4 | 59 | Wind blowing from the south | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | 12.8 55 | 25.6 78 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 13.9 57 | ||||||||||||||||