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 August 29, Saturday | 17 | 27.8 82 | 758.2 29.85 1010.85 1010.85 | 766.4 30.17 1021.78 1021.78 | -1.5 -0.06 -2 -2 | 46 | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1000-1500 3281-4921 | 16.0 9.9 | 15.0 59 | ||||||||||||||||||
14 | 27.2 81 | 759.7 29.91 1012.85 1012.85 | 768.0 30.24 1023.92 1023.92 | -0.4 -0.02 -0.53 -0.53 | 45 | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 50%. 5/10. 4 oktas | 19.4 67 | 27.2 81 | 1500-2000 4921-6562 | 16.0 9.9 | 14.4 58 | |||||||||||||||||
11 | 23.9 75 | 760.1 29.93 1013.38 1013.38 | 768.4 30.25 1024.45 1024.45 | 0.4 0.02 0.53 0.53 | 48 | 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 | 2000-2500 6562-8202 | 16.0 9.9 | 12.2 54 | ||||||||||||||||||
08 | 19.4 67 | 759.7 29.91 1012.85 1012.85 | 767.8 30.23 1023.65 1023.65 | 1.5 0.06 2 2 | 73 | Wind blowing from the north-northeast | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 20–30%. 2/10–3/10. 2 oktas | 18.9 66 | 31.1 88 | 2000-2500 6562-8202 | 16.0 9.9 | 14.4 58 | ||||||||||||||||
05 | 20.6 69 | 758.2 29.85 1010.85 1010.85 | 766.3 30.17 1021.65 1021.65 | 1.3 0.05 1.73 1.73 | 73 | Wind blowing from the north | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 20–30%. 2/10–3/10. 2 oktas | 2000-2500 6562-8202 | 16.0 9.9 | 15.6 60 | ||||||||||||||||||
02 | 20.0 68 | 756.9 29.8 1009.12 1009.12 | 765.0 30.12 1019.92 1019.92 | 0.8 0.03 1.07 1.07 | 87 | Calm, no wind | Calm | 20–30%. 2/10–3/10. 2 oktas | 20.0 68 | 26.7 80 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 17.8 64 | ||||||||||||||||
| August 28, Friday | 23 | 22.2 72 | 756.1 29.77 1008.05 1008.05 | 764.3 30.09 1018.98 1018.98 | 1.5 0.06 2 2 | 82 | Calm, no wind | Calm | 20–30%. 2/10–3/10. 2 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 18.9 66 | |||||||||||||||||
20 | 26.7 80 | 754.6 29.71 1006.05 1006.05 | 762.8 30.03 1016.98 1016.98 | 0.7 0.03 0.93 0.93 | 62 | Wind blowing from the north-east | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 50%. 5/10. 4 oktas | 20.6 69 | 31.1 88 | 1500-2000 4921-6562 | 16.0 9.9 | 18.9 66 | ||||||||||||||||
17 | 29.4 85 | 753.9 29.68 1005.12 1005.12 | 762.0 30 1015.92 1015.92 | -0.4 -0.02 -0.53 -0.53 | 55 | Wind blowing from the north-northeast | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 1000-1500 3281-4921 | 16.0 9.9 | 19.4 67 | ||||||||||||||||||