Weather archive in Portland (airport), Washington
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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 17, Monday | 23 | 21.1 70 | 763.1 30.04 1017.38 1017.38 | 763.6 30.06 1018.05 1018.05 | 1.5 0.06 2 2 | 68 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 50%. 5/10. 4 oktas | 15.6 60 | 29.4 85 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 15.0 59 | |||||||||||||||
20 | 26.1 79 | 761.6 29.98 1015.38 1015.38 | 762.1 30 1016.05 1016.05 | -0.5 -0.02 -0.67 -0.67 | 52 | Wind blowing from the north-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 50%. 5/10. 4 oktas | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 15.6 60 | ||||||||||||||||||
17 | 28.9 84 | 762.1 30 1016.05 1016.05 | 762.6 30.02 1016.72 1016.72 | -1.2 -0.05 -1.6 -1.6 | 37 | Wind blowing from the north-west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 50%. 5/10. 4 oktas | 15.6 60 | 28.9 84 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 12.8 55 | ||||||||||||||||
14 | 25.0 77 | 763.3 30.05 1017.65 1017.65 | 763.8 30.07 1018.32 1018.32 | -1.3 -0.05 -1.73 -1.73 | 52 | Wind blowing from the west-northwest | 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 | 14.4 58 | ||||||||||||||||||
11 | 18.3 65 | 764.6 30.1 1019.38 1019.38 | 765.2 30.13 1020.18 1020.18 | -0.3 -0.01 -0.4 -0.4 | 76 | Wind blowing from the north-west | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 15.6 60 | 19.4 67 | 300-600 984-1968 | 16.0 9.9 | 13.9 57 | ||||||||||||||||
08 | 16.1 61 | 764.9 30.11 1019.78 1019.78 | 765.4 30.13 1020.45 1020.45 | -0.2 -0.01 -0.27 -0.27 | 87 | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | 100%. 10/10. 8 oktas | 200-300 656-984 | 16.0 9.9 | 13.9 57 | |||||||||||||||||||
05 | 16.1 61 | 765.1 30.12 1020.05 1020.05 | 765.6 30.14 1020.72 1020.72 | 0.2 0.01 0.27 0.27 | 87 | Wind blowing from the west-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | 100%. 10/10. 8 oktas | 15.6 60 | 26.7 80 | 200-300 656-984 | 16.0 9.9 | 13.9 57 | ||||||||||||||||
02 | 16.7 62 | 764.9 30.11 1019.78 1019.78 | 765.3 30.13 1020.32 1020.32 | 0.3 0.01 0.4 0.4 | 84 | Wind blowing from the north-west | 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 | 13.9 57 | ||||||||||||||||||
| August 16, Sunday | 23 | 19.4 67 | 764.6 30.1 1019.38 1019.38 | 765.1 30.12 1020.05 1020.05 | 1.0 0.04 1.33 1.33 | 71 | Wind blowing from the north-northwest | Gentle breeze (4 m/s) (14 km/h) (9 miles/hour) (8 knots) (3 Bft) | 70 – 80%. 7/10 – 8/10. 6 oktas | 16.7 62 | 26.7 80 | 2500 or more, or no clouds. 8202 or more, or no clouds. | 16.0 9.9 | 13.9 57 | |||||||||||||||