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 17, Saturday | 01 | 5.6 42 | 754.8 29.72 1006.32 1006.32 | 773.2 30.44 1030.85 1030.85 | 1.5 0.06 2 2 | 62 | Wind blowing from the north-northwest | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 20–30%. 2/10–3/10. 2 oktas | 5.6 42 | 13.9 57 | 1500-2000 4921-6562 | 16.0 9.9 | -1.1 30 | |||||||||||||||
| October 16, Friday | 22 | 7.8 46 | 753.3 29.66 1004.32 1004.32 | 771.7 30.38 1028.85 1028.85 | 2.0 0.08 2.67 2.67 | 71 | Wind blowing from the north-northwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 20–30%. 2/10–3/10. 2 oktas | 1000-1500 3281-4921 | 16.0 9.9 | 2.8 37 | |||||||||||||||||
19 | 8.9 48 | 751.3 29.58 1001.65 1001.65 | 769.4 30.29 1025.78 1025.78 | 3.5 0.14 4.67 4.67 | 74 | Wind blowing from the north | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | 70 – 80%. 7/10 – 8/10. 6 oktas | 8.9 48 | 13.9 57 | 1000-1500 3281-4921 | 16.0 9.9 | 4.4 40 | 0.3 0.01 | 6 | |||||||||||||
16 | 13.3 56 | 747.8 29.44 996.98 996.98 | 765.9 30.15 1021.12 1021.12 | 2.0 0.08 2.67 2.67 | 53 | Wind blowing from the north | Fresh breeze (9 m/s) (32 km/h) (20 miles/hour) (17 knots) (5 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1000-1500 3281-4921 | 16.0 9.9 | 3.9 39 | Trace of precipitation Trace of precipitation | 3 | ||||||||||||||||
13 | 12.2 54 | 745.8 29.36 994.32 994.32 | 763.9 30.07 1018.45 1018.45 | 1.2 0.05 1.6 1.6 | 69 | Wind blowing from the north | Strong breeze (11 m/s) (40 km/h) (25 miles/hour) (21 mile/hour) (6 Bft) | 14 m/s 50 km/h 31 mile/hour 27 knots 7 Bft | 100%. 10/10. 8 oktas | 10.6 51 | 13.9 57 | 600-1000 1968-3281 | 16.0 9.9 | 6.7 44 | Trace of precipitation Trace of precipitation | 6 | |||||||||||||
10 | 11.1 52 | 744.6 29.31 992.72 992.72 | 762.5 30.02 1016.58 1016.58 | 1.3 0.05 1.73 1.73 | 72 | Wind blowing from the west-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 16.0 9.9 | 6.1 43 | |||||||||||||||||
07 | 10.6 51 | 743.3 29.26 990.99 990.99 | 761.2 29.97 1014.85 1014.85 | 1.7 0.07 2.27 2.27 | 80 | Wind blowing from the west | Gentle breeze (5 m/s) (18 km/h) (11 miles/hour) (10 knots) (3 Bft) | 9 m/s 32 km/h 20 miles/hour 17 knots 5 Bft | 100%. 10/10. 8 oktas | 10.6 51 | 18.9 66 | 300-600 984-1968 | 16.0 9.9 | 7.2 45 | Trace of precipitation Trace of precipitation | 6 | |||||||||||||
04 | 12.2 54 | 741.6 29.2 988.72 988.72 | 759.4 29.9 1012.45 1012.45 | 2.3 0.09 3.07 3.07 | 72 | Wind blowing from the west-northwest | Fresh breeze (8 m/s) (29 km/h) (18 miles/hour) (16 knots) (5 Bft) | 13 m/s 47 km/h 29 miles/hour 25 knots 6 Bft | 100%. 10/10. 8 oktas | 600-1000 1968-3281 | 16.0 9.9 | 7.2 45 | Trace of precipitation Trace of precipitation | 3 | |||||||||||||||
01 | 13.9 57 | 739.3 29.11 985.65 985.65 | 757.1 29.81 1009.38 1009.38 | 1.2 0.05 1.6 1.6 | 83 | Wind blowing from the west-northwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 13 m/s 47 km/h 29 miles/hour 25 knots 6 Bft | 100%. 10/10. 8 oktas | Rain, not freezing, continuous, slight at time of observation. | 13.9 57 | 18.9 66 | 300-600 984-1968 | 16.0 9.9 | 11.1 52 | Trace of precipitation Trace of precipitation | 6 | ||||||||||||