Weather archive in Helena (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 May 24, Sunday | 18 | 26.7 80 | 657.8 25.9 876.99 876.99 | 757.9 29.84 1010.45 1010.45 | 0.0 0 0 0 | 12 | Wind blowing from the west-northwest | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | 11 m/s 40 km/h 25 miles/hour 21 mile/hour 6 Bft | no clouds no clouds no clouds | 7.2 45 | 26.7 80 | 16.0 9.9 | -5.0 23 | |||||||||||||||
15 | 25.0 77 | 657.8 25.9 876.99 876.99 | 757.9 29.84 1010.45 1010.45 | -1.1 -0.04 -1.47 -1.47 | 14 | Wind blowing from the west-northwest | Moderate breeze (6 m/s) (22 km/h) (13 miles/hour) (12 knots) (4 Bft) | 12 m/s 43 km/h 27 miles/hour 23 knots 6 Bft | no clouds no clouds no clouds | 16.0 9.9 | -3.9 25 | ||||||||||||||||||
12 | 23.3 74 | 658.9 25.94 878.46 878.46 | 759.3 29.89 1012.32 1012.32 | -1.2 -0.05 -1.6 -1.6 | 20 | 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 | no clouds no clouds no clouds | 7.8 46 | 23.3 74 | 16.0 9.9 | -0.6 31 | ||||||||||||||||
09 | 12.8 55 | 660.1 25.99 880.06 880.06 | 760.9 29.96 1014.45 1014.45 | 1.6 0.06 2.13 2.13 | 53 | Calm, no wind | Calm | no clouds no clouds no clouds | 16.0 9.9 | 3.3 38 | |||||||||||||||||||
06 | 8.9 48 | 658.5 25.93 877.93 877.93 | 759.1 29.89 1012.05 1012.05 | 0.5 0.02 0.67 0.67 | 63 | Calm, no wind | Calm | no clouds no clouds no clouds | 7.2 45 | 24.4 76 | 16.0 9.9 | 2.2 36 | |||||||||||||||||
03 | 10.6 51 | 658.0 25.91 877.26 877.26 | 758.2 29.85 1010.85 1010.85 | 0.2 0.01 0.27 0.27 | 56 | Wind blowing from the south-southeast | Light breeze (2 m/s) (7 km/h) (4 mph) (4 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 2.2 36 | |||||||||||||||||||
00 | 13.3 56 | 657.8 25.9 876.99 876.99 | 758.3 29.85 1010.98 1010.98 | 0.4 0.02 0.53 0.53 | 46 | Wind blowing from the north-northwest | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | no clouds no clouds no clouds | 5.0 41 | 23.9 75 | 16.0 9.9 | 1.7 35 | |||||||||||||||||
| May 23, Saturday | 21 | 18.3 65 | 657.4 25.88 876.46 876.46 | 758.1 29.85 1010.72 1010.72 | 0.0 0 0 0 | 31 | Wind blowing from the west | Light breeze (3 m/s) (11 km/h) (7 miles/hour) (6 knots) (2 Bft) | no clouds no clouds no clouds | 16.0 9.9 | 0.6 33 | ||||||||||||||||||
18 | 22.8 73 | 657.4 25.88 876.46 876.46 | 758.2 29.85 1010.85 1010.85 | -0.4 -0.02 -0.53 -0.53 | 21 | Wind blowing from the west | Moderate breeze (7 m/s) (25 km/h) (16 miles/hour) (14 knots) (4 Bft) | no clouds no clouds no clouds | 5.0 41 | 24.4 76 | 16.0 9.9 | -0.6 31 | |||||||||||||||||