Weather archive in Washington / Dulles (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 28, Tuesday | 14 | 29.4 85 | 743.8 29.28 991.65 991.65 | 751.6 29.59 1002.05 1002.05 | -1.8 -0.07 -2.4 -2.4 | 63 | Wind blowing from the south-southeast | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 23.3 74 | 29.4 85 | 600-1000 1968-3281 | 16.0 9.9 | 21.7 71 | |||||||||||||||
11 | 25.0 77 | 745.6 29.35 994.05 994.05 | 753.7 29.67 1004.85 1004.85 | -0.5 -0.02 -0.67 -0.67 | 79 | Wind blowing from the south | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 100%. 10/10. 8 oktas | 1500-2000 4921-6562 | 16.0 9.9 | 21.1 70 | ||||||||||||||||||
08 | 23.3 74 | 746.1 29.37 994.72 994.72 | 754.1 29.69 1005.38 1005.38 | -0.4 -0.02 -0.53 -0.53 | 85 | Wind blowing from the south-southeast | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 21.7 71 | 30.6 87 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 20.6 69 | ||||||||||||||||
05 | 22.2 72 | 746.5 29.39 995.25 995.25 | 754.6 29.71 1006.05 1006.05 | -1.5 -0.06 -2 -2 | 87 | Wind blowing from the south-southeast | 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 | 20.0 68 | ||||||||||||||||||
02 | 24.4 76 | 748.0 29.45 997.25 997.25 | 756.0 29.76 1007.92 1007.92 | -0.3 -0.01 -0.4 -0.4 | 77 | 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 | 20.0 68 | 27.2 81 | 2000-2500 6562-8202 | 16.0 9.9 | 20.0 68 | ||||||||||||||||
| July 27, Monday | 23 | 24.4 76 | 748.3 29.46 997.65 997.65 | 756.2 29.77 1008.18 1008.18 | 0.0 0 0 0 | 77 | Wind blowing from the south-southwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 2000-2500 6562-8202 | 16.0 9.9 | 20.0 68 | |||||||||||||||||
20 | 27.2 81 | 748.3 29.46 997.65 997.65 | 756.4 29.78 1008.45 1008.45 | 0.0 0 0 0 | 61 | Wind blowing from the south-southwest | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 50%. 5/10. 4 oktas | 20.0 68 | 30.6 87 | 1500-2000 4921-6562 | 16.0 9.9 | 18.9 66 | ||||||||||||||||
17 | 30.0 86 | 748.3 29.46 997.65 997.65 | 756.2 29.77 1008.18 1008.18 | -1.3 -0.05 -1.73 -1.73 | 46 | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1500-2000 4921-6562 | 16.0 9.9 | 17.2 63 | |||||||||||||||||||
14 | 29.4 85 | 749.6 29.51 999.38 999.38 | 757.7 29.83 1010.18 1010.18 | -0.8 -0.03 -1.07 -1.07 | 48 | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 22.8 73 | 30.0 86 | 1000-1500 3281-4921 | 16.0 9.9 | 17.2 63 | |||||||||||||||||