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 28, Friday | 07 | 19.4 67 | 747.3 29.42 996.32 996.32 | 765.1 30.12 1020.05 1020.05 | 1.0 0.04 1.33 1.33 | 84 | Calm, no wind | Calm | 50%. 5/10. 4 oktas | 18.9 66 | 27.8 82 | 1000-1500 3281-4921 | 16.0 9.9 | 16.7 62 | |||||||||||||||
04 | 20.6 69 | 746.3 29.38 994.99 994.99 | 763.8 30.07 1018.32 1018.32 | 0.5 0.02 0.67 0.67 | 78 | Calm, no wind | Calm | 70 – 80%. 7/10 – 8/10. 6 oktas | 2000-2500 6562-8202 | 16.0 9.9 | 16.7 62 | ||||||||||||||||||
01 | 21.7 71 | 745.8 29.36 994.32 994.32 | 763.5 30.06 1017.92 1017.92 | 0.7 0.03 0.93 0.93 | 76 | Wind blowing from the east | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 50%. 5/10. 4 oktas | 18.3 65 | 24.4 76 | 1500-2000 4921-6562 | 16.0 9.9 | 17.2 63 | ||||||||||||||||
| August 27, Thursday | 22 | 22.8 73 | 745.1 29.33 993.39 993.39 | 762.7 30.03 1016.85 1016.85 | 1.0 0.04 1.33 1.33 | 64 | Wind blowing from the east | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 50%. 5/10. 4 oktas | 1500-2000 4921-6562 | 16.0 9.9 | 15.6 60 | |||||||||||||||||
19 | 24.4 76 | 744.1 29.3 992.05 992.05 | 761.8 29.99 1015.65 1015.65 | 0.0 0 0 0 | 62 | Wind blowing from the east | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 50%. 5/10. 4 oktas | 18.3 65 | 27.8 82 | 1500-2000 4921-6562 | 16.0 9.9 | 16.7 62 | ||||||||||||||||
16 | 27.2 81 | 744.1 29.3 992.05 992.05 | 761.7 29.99 1015.52 1015.52 | -0.3 -0.01 -0.4 -0.4 | 47 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1500-2000 4921-6562 | 16.0 9.9 | 15.0 59 | ||||||||||||||||||
13 | 26.7 80 | 744.4 29.31 992.45 992.45 | 762.0 30 1015.92 1015.92 | 0.3 0.01 0.4 0.4 | 49 | Wind blowing from the north | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 18.9 66 | 26.7 80 | 1000-1500 3281-4921 | 16.0 9.9 | 15.0 59 | ||||||||||||||||
10 | 23.9 75 | 744.1 29.3 992.05 992.05 | 761.7 29.99 1015.52 1015.52 | 0.8 0.03 1.07 1.07 | 60 | Calm, no wind | Calm | no clouds no clouds no clouds | 16.0 9.9 | 15.6 60 | |||||||||||||||||||
07 | 18.9 66 | 743.3 29.26 990.99 990.99 | 760.9 29.96 1014.45 1014.45 | 0.7 0.03 0.93 0.93 | 84 | Wind blowing from the north-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | no clouds no clouds no clouds | 18.3 65 | 28.9 84 | 16.0 9.9 | 16.1 61 | |||||||||||||||||